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Patent application title: SEAM CONCEALMENT FOR THREE-DIMENSIONAL MODELS
Inventors: Paul E. Hopkins (Savage, MN, US) Stratasys, Inc. (Eden Prairie, MN, US) Donald J. Holzwarth (Minnetonka, MN, US)
Assignees: STRATASYS, INC.
IPC8 Class: AB29C4706FI
USPC Class: 4281951
Class name: Stock material or miscellaneous articles structurally defined web or sheet (e.g., overall dimension, etc.) discontinuous or differential coating, impregnation or bond (e.g., artwork, printing, retouched photograph, etc.)
A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
1. A three-dimension model built with an extrusion-based digital manufacturing system, the three-dimension model comprising a plurality of layers of an extruded material, wherein at least one of the layers comprises: a perimeter of the extruded material, the perimeter comprising a start point and a stop point; and an interior region of the layer defined by the perimeter, wherein at least one of the start point and the stop point is located within the interior region of the layer.
2. The three-dimensional model of claim 1, wherein the location of the at least one of the start point and the stop point is offset from a centerline of the perimeter of the layer by a distance that is greater than about 50% of a road width of the perimeter.
3. The three-dimensional model of claim 2, wherein the distance ranges from greater than about 50% of the road width to about 200% of the road width.
4. The three-dimensional model of claim 1, wherein the start point and the stop point are each located within the interior region of the layer.
5. The three-dimensional model of claim 1, wherein the locations of the start point and the stop point define an arrangement selected from the group consisting of an open-square arrangement, a closed-square arrangement, an overlapped closed-square arrangement, an open-triangle arrangement, a closed-triangle arrangement, a converging-point arrangement, an overlapped-cross arrangement, and combinations thereof.
6. The three-dimensional model of claim 1, wherein the perimeter comprises at least one step-over arrangement between the start point and the stop point.
CROSS-REFERENCE TO RELATED APPLICATION(S)
[0001] This is a divisional application of U.S. patent application Ser. No. 12/565,397, filed on Sep. 23, 2009, and entitled "SEAM CONCEALMENT FOR THREE-DIMENSIONAL MODELS", the contents of which are incorporated by reference in its entirety.
[0002] The present disclosure relates to direct digital manufacturing systems for building three-dimensional (3D) models. In particular, the present invention relates to techniques for building 3D models with extrusion-based digital manufacturing systems.
[0003] An extrusion-based digital manufacturing system (e.g., fused deposition modeling systems developed by Stratasys, Inc., Eden Prairie, Minn.) is used to build a 3D model from a digital representation of the 3D model in a layer-by-layer manner by extruding a flowable consumable modeling material. The modeling material is extruded through an extrusion tip carried by an extrusion head, and is deposited as a sequence of roads on a substrate in an x-y plane. The extruded modeling material fuses to previously deposited modeling material, and solidifies upon a drop in temperature. The position of the extrusion head relative to the substrate is then incremented along a z-axis (perpendicular to the x-y plane), and the process is then repeated to form a 3D model resembling the digital representation.
[0004] Movement of the extrusion head with respect to the substrate is performed under computer control, in accordance with build data that represents the 3D model. The build data is obtained by initially slicing the digital representation of the 3D model into multiple horizontally sliced layers. Then, for each sliced layer, the host computer generates one or more tool paths for depositing roads of modeling material to form the 3D model.
[0005] In fabricating 3D models by depositing layers of a modeling material, supporting layers or structures are typically built underneath overhanging portions or in cavities of objects under construction, which are not supported by the modeling material itself. A support structure may be built utilizing the same deposition techniques by which the modeling material is deposited. The host computer generates additional geometry acting as a support structure for the overhanging or free-space segments of the 3D model being formed. Consumable support material is then deposited from a second nozzle pursuant to the generated geometry during the build process. The support material adheres to the modeling material during fabrication, and is removable from the completed 3D model when the build process is complete.
[0006] A first aspect of the present disclosure is directed to a method for building a 3D model with an extrusion-based digital manufacturing system. The method includes generating a contour tool path that defines an interior region of a layer of the 3D model, where the contour tool path comprises a start point and a stop point, and where at least one of the start point and the stop point is located within the interior region of the layer.
[0007] Another aspect of the present disclosure is directed to a method for building a 3D model with an extrusion-based digital manufacturing system, where the method includes receiving data comprising tool paths for building a plurality of layers of the 3D model. The method also includes extruding a material in a pattern based on the tool paths to form a perimeter of the extruded material for one of the layers of the 3D model, where the perimeter has a start point and a stop point, and defines an interior region of the layer, and where at least one of the start point and the stop point is located within the interior region of the layer.
[0008] Another aspect of the present disclosure is directed to a 3D model built with an extrusion-based digital manufacturing system. The 3D model includes a plurality of layers of an extruded material, where at least one of the layers includes a perimeter of the extruded material, and where the perimeter has a start point and a stop point. The layer also includes an interior region defined by the perimeter, where at least one of the start point and the stop point is located within the interior region of the layer.
[0009] FIG. 1 is a front view of an extrusion-based digital manufacturing system for building 3D models and support structures.
[0010] FIG. 2 is a top view of a layer of a 3D model being built with the extrusion-based digital manufacturing system.
[0011] FIG. 3 is an expanded view of section 3 taken in FIG. 2, illustrating a seam of the layer with an open-square arrangement.
[0012] FIG. 4 is a flow diagram of a method for generating data and building a 3D model having concealed seams.
[0013] FIG. 5 is an alternative expanded view of section 3 taken in FIG. 2, illustrating a seam of a first alternative layer with a closed-square arrangement.
[0014] FIG. 6 is an alternative expanded view of section 3 taken in FIG. 2, illustrating a seam of a second alternative layer with an overlapped closed-square arrangement.
[0015] FIG. 7 is an alternative expanded view of section 3 taken in FIG. 2, illustrating a seam of a third alternative layer with an open-triangle arrangement.
[0016] FIG. 8 is an alternative expanded view of section 3 taken in FIG. 2, illustrating a seam of a fourth alternative layer with a closed-triangle arrangement.
[0017] FIG. 9 is an alternative expanded view of section 3 taken in FIG. 2, illustrating a seam of a fifth alternative layer with a converging-point arrangement.
[0018] FIG. 10 is an alternative expanded view of section 3 taken in FIG. 2, illustrating a seam of a sixth alternative layer with an overlapped-cross arrangement.
[0019] FIG. 11 is an alternative expanded view of section 3 taken in FIG. 2, illustrating a seam of a seventh alternative layer with a combined perimeter and raster pattern arrangement, where a start point is located adjacent to the seam and a stop point is located within an interior region.
[0020] FIG. 12 is an alternative expanded view of section 3 taken in FIG. 2, illustrating a seam of an eighth alternative layer with a combined perimeter and raster pattern arrangement, where start and stop points are each located within an interior region.
[0021] FIG. 13 is an alternative expanded view of section 3 taken in FIG. 2, illustrating a seam of a ninth alternative layer with an crimped-square arrangement.
[0022] FIG. 14 is a top view of a tenth alternative layer of the 3D model being built with the extrusion-based digital manufacturing system.
[0023] FIG. 15 is an expanded view of section 15 taken in FIG. 14, illustrating a seam of the tenth alternative layer with a step-over arrangement.
[0024] FIG. 16 is an alternative expanded view of section 15 taken in FIG. 14, illustrating a seam of an eleventh alternative layer with a shortened step-over arrangement.
[0025] The present disclosure is directed to a method for building 3D models with deposition patterns that contain concealed seams. As discussed below, the method involves adjusting the start point and/or the stop point of a contour tool path of a 3D model layer to one or more locations that are within an interior region of the layer. This effectively conceals the seam that is formed at the intersection of the starting and stop points, which can increase the aesthetic and functional qualities of the resulting 3D model.
[0026] The following discussion of 3D models with concealed seams is made with reference to 3D models built with modeling materials since consumers are generally more concerned about the aesthetic and physical qualities of the intended 3D models, and are less concerned about such qualities of the "support materials" used to form support structures, which are typically removed and discarded. However, the techniques for forming concealed seams may also be used to form support structures having concealed seams. Thus, the term "three-dimensional model" may apply to a 3D model built with a modeling material and to a support structure built with a support material.
[0027] FIG. 1 is a front view of system 10 in use with computer 12, where system 10 is an extrusion-based digital manufacturing system that may be used to build 3D models and/or support structures with concealed seams. As shown, system 10 includes build chamber 14, platen 16, gantry 18, extrusion head 20, and supply sources 22 and 24. Suitable extrusion-based digital manufacturing systems for system 10 include fused deposition modeling systems developed by Stratasys, Inc., Eden Prairie, Minn.
[0028] Build chamber 14 is an enclosed, heatable environment that contains platen 16, gantry 18, and extrusion head 20 for building a 3D model (referred to as 3D model 26) and a corresponding support structure (referred to as support structure 28). Platen 16 is a platform on which 3D model 26 and support structure 28 are built, and moves along a vertical z-axis based on signals provided from controller 30. As discussed below, controller 30 directs the motion of platen 16 and extrusion head 20 based on data supplied by computer 12.
[0029] Gantry 18 is a guide rail system configured to move extrusion head 20 in a horizontal x-y plane within build chamber 14 based on signals provided from controller 30. The horizontal x-y plane is a plane defined by an x-axis and a y-axis (not shown in FIG. 1), where the x-axis, the y-axis, and the z-axis are orthogonal to each other. In an alternative embodiment, platen 16 may be configured to move in the horizontal x-y plane within build chamber 14, and extrusion head 20 may be configured to move along the z-axis. Other similar arrangements may also be used such that one or both of platen 16 and extrusion head 20 are moveable relative to each other.
[0030] Extrusion head 20 is supported by gantry 18 for building 3D model 26 and support structure 28 on platen 16 in a layer-by-layer manner, based on signals provided from controller 30. Accordingly, controller 30 also directs extrusion head 20 to selectively deposit the modeling and support materials based on data supplied by computer 12. In the embodiment shown in FIG. 1, extrusion head 20 is a dual-tip extrusion head configured to deposit modeling and support materials from supply source 22 and supply source 24, respectively.
[0031] Examples of suitable extrusion heads for extrusion head 20 include those disclosed in LaBossiere, et al., U.S. Patent Application Publication Nos. 2007/0003656 and 2007/00228590; and Leavitt, U.S. Patent Application Publication No. 2009/0035405. Alternatively, system 10 may include one or more two-stage pump assemblies, such as those disclosed in Batchelder et al., U.S. Pat. No. 5,764,521; and Skubic et al., U.S. Patent Application Publication No. 2008/0213419. Furthermore, system 10 may include a plurality of extrusion heads 18 for depositing modeling and/or support materials.
[0032] The modeling material may be provided to extrusion head 20 from supply source 22 through pathway 32. Similarly, the support material may be provided to extrusion head 20 from supply source 24 through pathway 34. System 10 may also include additional drive mechanisms (not shown) configured to assist in feeding the modeling and support materials from supply sources 22 and 24 to extrusion head 20.
[0033] The modeling and support materials may be provided to system 10 in a variety of different media. For example, the modeling and support materials may be provided as continuous filaments fed respectively from supply sources 22 and 24, as disclosed in Swanson et al., U.S. Pat. No. 6,923,634; Comb et al., U.S. Pat. No. 7,122,246; and Taatjes et al, U.S. Patent Application Publication Nos. 2010/0096489 and 2010/0096485. Examples of suitable average diameters for the filaments of the modeling and support materials range from about 1.27 millimeters (about 0.050 inches) to about 2.54 millimeters (about 0.100 inches), with particularly suitable average diameters ranging from about 1.65 millimeters (about 0.065 inches) to about 1.91 millimeters (about 0.075 inches). Alternatively, the modeling and support materials may be provided as other forms of media (e.g., pellets and resins) from other types of storage and delivery components (e.g., supply hoppers and vessels).
[0034] Suitable modeling materials for building 3D model 26 include materials having amorphous properties, such as thermoplastic materials, amorphous metallic materials, and combinations thereof. Examples of suitable thermoplastic materials for ribbon filament 34 include acrylonitrile-butadiene-styrene (ABS) copolymers, polycarbonates, polysulfones, polyethersulfones, polyphenylsulfones, polyetherimides, amorphous polyamides, modified variations thereof (e.g., ABS-M30 copolymers), polystyrene, and blends thereof. Examples of suitable amorphous metallic materials include those disclosed in U.S. patent application Ser. No. 12/417,740.
[0035] Suitable support materials for building support structure 28 include materials having amorphous properties (e.g., thermoplastic materials) and that are desirably removable from the corresponding modeling materials after 3D model 24 and support structure 26 are built. Examples of suitable support materials for ribbon filament 34 include water-soluble support materials commercially available under the trade designations "WATERWORKS" and "SOLUBLE SUPPORTS" from Stratasys, Inc., Eden Prairie, Minn.; break-away support materials commercially available under the trade designation "BASS" from Stratasys, Inc., Eden Prairie, Minn., and those disclosed in Crump et al., U.S. Pat. No. 5,503,785; Lombardi et al., U.S. Pat. Nos. 6,070,107 and 6,228,923; Priedeman et al., U.S. Pat. No. 6,790,403; and Hopkins et al., U.S. Patent Application Publication No. 2010/0096072.
[0036] Prior to a build operation, computer 12 may receive a digital representation of 3D model 26. Computer 12 is one or more computer-based systems that communicates with system 10 (e.g., with controller 30), and may be separate from system 10, or alternatively may be an internal component of system 10. Upon receipt of the digital representation of 3D model 26, computer 12 may reorient the digital representation and generate one or more supports for any overhanging regions that require vertical support (e.g., with support structure 28).
[0037] Computer 12 may then slice the digital representation and generated supports into multiple layers. For each layer, computer 12 may then generate one or more tool paths for extrusion head 20 to follow for building each layer of 3D model 26 and support structure 28. The generation of the tool path(s) for a layer of 3D model 26 may initially involve generating one or more contour tool paths that define the perimeter(s) of 3D model 26 for the given layer. As discussed below, computer 12 also desirably adjusts the start point and/or the stop point of each contour tool path of the layer to one or more locations that are within an interior region of the layer defined by the respective contour tool path. This effectively conceals the seam that is formed at the intersection of the start and stop points.
[0038] Based on each generated contour tool path, computer 12 may then generate one or more additional tool paths (e.g., raster paths) to fill in the interior region(s) defined by the perimeter(s), as necessary. As further discussed below, the generation of the additional tool path(s) (e.g., raster paths) desirably compensate for the adjustments in the locations of the start points and/or the stop points of the contour tool path(s).
[0039] One or more tool paths for the layer of support structure 28 may also be generated in the same manner. This process may then repeated be for each sliced layer of the digital representation, and the generated data may be stored on any suitable computer storage medium (e.g., on a storage device of computer 12). The generated data may also be transmitted from computer 12 to controller 30 for building 3D model 26 and support structure 28.
[0040] During a build operation, controller 30 directs one or more drive mechanisms (not shown) to intermittently feed the modeling and support materials to extrusion head 20 from supply sources 22 and 24. For each layer, controller 30 then directs gantry 18 to move extrusion head 20 around in the horizontal x-y plane within build chamber 14 based on the generated tool paths. The received modeling and support materials are then deposited onto platen 16 to build the layer of 3D model 26 and support structure 28 using the layer-based additive technique.
[0041] The formation of each layer of 3D model 26 and support structure 28 may be performed in an intermittent manner in which the modeling material may initially be deposited to form the layer of 3D model 26. Extrusion head 20 may then be toggled to deposit the support material to form the layer of support structure 28. The reciprocating order of modeling and support materials may alternatively be used. The deposition process may then be performed for each successive layer to build 3D model 26 and support structure 28. Support structure 28 is desirably deposited to provide vertical support along the z-axis for overhanging regions of the layers of 3D model 26. After the build operation is complete, the resulting 3D model 26/support structure 28 may be removed from build chamber 14, and support structure 28 may be removed from 3D model 26.
[0042] FIGS. 2 and 3 illustrate layer 36, which is a layer of 3D model 26 formed by depositing a modeling material with system 10. As shown in FIG. 2, layer 36 includes perimeter path 38, which is a road of a modeling material that is deposited by extrusion head 20 along contour tool path 40. As discussed above, contour tool path 40 may be generated by computer 12 based on road width 42, which is a predicted width of a deposited road of the modeling material, and may depend on a variety of factors, such as modeling material properties, the type of extrusion-based digital manufacturing system used, extrusion conditions, extrusion tip dimensions, and the like. Suitable widths for road width 42 range from about 250 micrometers (about 10 mils) to about 1,020 micrometers (about 40 mils), with particularly suitable widths ranging from about 380 micrometers (about 15 mils) to about 760 micrometers (about 30 mils).
[0043] In the current example, the modeling material is deposited along contour tool path 40 in a clockwise direction, as represented by arrows 44, to form perimeter path 38. Alternatively, the modeling material may be along contour tool path 40 in a counter-clockwise direction. Perimeter path 38 includes exterior surface 46 and interior surface 48, which are each offset from contour tool path 40 by about one-half of road width 42. Exterior surface 46 is the outward-facing surface of perimeter path 38 and may be observable when 3D model 26 is completed. Interior surface 48 is the inward-facing surface of perimeter path 38, which defines interior region 50. Interior region 50 is the region of layer 36 confined within perimeter path 38, and may be filled with additional modeling material deposited along additionally generated tool paths (e.g., raster paths, not shown).
[0044] As shown in FIG. 3, contour tool path 40 includes start point 52 and stop point 54, where start point 52 is a first location in the x-y plane at which extrusion head 20 is directed to begin depositing the modeling material, and stop point 54 is a second location in the x-y plane at which extrusion head 20 is directed to stop depositing the modeling material. Accordingly, during the build operation, controller 30 directs extrusion head 20 to begin depositing the modeling material at start point 52, and to move along contour tool path 40 in the direction of arrow 56 until reaching point 58. Extrusion head 20 is then directed to follow the ring-geometry of contour tool path 40, as illustrated by arrows 44, until reaching point 60. Extrusion head 20 is then directed to move along contour tool path 40 in the direction of arrow 62 until reaching stop point 54, where extrusion head 20 stops depositing the modeling material.
[0045] This process provides a continuous road of the deposited modeling material at all locations around perimeter path 38 except at the intersection between points 58 and 60, where the outgoing and incoming roads meet. This intersection forms a seam for layer 36 (referred to as seam 64). As shown, start point 52 and stop point 54 are each located at an offset location from seam 64 within interior region 50. This is in comparison to start and stop points generated under a conventional data generation technique, in which the start and stop points would typically be collinear with the outer ring of contour tool path 40 (i.e., at points 58 and 60, respectively). Under the conventional technique, a contour tool path is typically generated to match the geometry of the exterior perimeter of a 3D model layer, with an offset that accounts for the road width (e.g., road width 42). Thus, the start and stop points would necessarily be located at locations that are collinear with the contour tool path, and the stop point would end up being located next to the start point (e.g., at points 58 and 60).
[0046] Due to variations in the extrusion process when starting and stopping the depositions, the modeling material deposited at a stop point corresponding to point 60 may bump into the modeling material previously deposited at a start point corresponding to point 58. This bumping can form a significant bulge of the modeling materials at the seam, which can be visually observed with the naked eye, thereby detracting from the aesthetic qualities of the resulting 3D model. Alternatively, if not enough modeling material is deposited between points 58 and 60, a gap may be formed at the seam, which can increase the porosity of the 3D model. The increased porosity can allow gases and fluids to pass into or through the 3D model, which may be undesirable for many functional purposes (e.g., for containing liquids). Accordingly, under the conventional data generation technique, proper seam sealing may be difficult to achieve, particularly due to the number of geometric complexities that may be required for a given 3D model.
[0047] Pursuant to the method of the present disclosure, however, seam 64 may be properly sealed by adjusting the location of the start point from point 58 to point 52, and by adjusting the location of the stop point from point 60 to point 54. This allows any variations in the extrusion process when starting and stopping the depositions to occur at a location that is within interior region 50 rather than adjacent to exterior surface 46. Any variations (e.g., bulges) that occur within interior region 50 are masked by the successive layers of 3D model 26, thereby concealing these effects within the filled body of 3D model 26 when completed. This allows the dimensions of perimeter path 38 at seam 64 to be truer to the dimensions of the digital representation of 3D model 26 and increases the consistency of the seams of successive layers of 3D model 26.
[0048] While shown at particular x-y coordinates within interior region 50, start point 52 and/or stop point 54 may alternatively be adjusted to a variety of different coordinate locations within interior region 50. Additionally, the coordinate locations may vary depending on the dimensions of the particular layer of the 3D model being built. In the embodiment shown in FIG. 3, start point 52 and stop point 54 are adjusted respectively from points 58 and 60 by vectors that are orthogonal to contour tool path 40 at perimeter path 38, and which point toward interior region 50. Examples of suitable distances for adjusting start point 52 from point 58 and/or for adjusting stop point 54 from point 60 (i.e., from a centerline of perimeter path 38) includes distances that are greater than 50% of road width 42 (i.e., beyond interior surface 48), with particularly suitable distances ranging from greater than about 50% of road width 42 to about 200% of road width 42, and with even more particularly suitable distances ranging from about 75% of road width 42 to about 150% of road width 42.
[0049] The locations of start point 52 and stop point 54 also allow the deposited modeling material to form a seal at seam 64 that extends inward within interior region 50. This reduces the porosity of 3D model 26 at seam 64, thereby reducing or eliminating the transmission of gases and/or liquids through seam 64. As a result, in comparison to the conventional techniques, the process of adjusting the start and stop points to locations within interior region 50 effectively eliminates the formation of bulges of modeling material at seam 64, while also reducing the porosity at seam 64.
[0050] FIG. 4 is a flow diagram of method 66 for generating data and building a 3D model based on a digital representation of the 3D model, where the resulting 3D model includes concealed seams. The following discussion of method 66 is made with reference to 3D model 26 (shown in FIG. 1) and layer 36 of 3D model 24 (shown in FIGS. 2 and 3). However, method 66 is applicable for building 3D models and corresponding support structures having a variety of different geometries. As shown in FIG. 4, method 66 includes steps 68-84, and initially involves receiving a digital representation of 3D model 24 (step 68), slicing the digital representation and into multiple layers (step 70), and generating one or more pre-sliced support structures with computer 12 (step 72). In an alternative embodiment, steps 70 and 72 may be reversed such that one or more support structures are generated and the digital representation and the generated support structure(s) are then sliced.
[0051] Computer 12 then selects a first layer of the sliced layers and generates one or more contour tool paths based on the perimeter of the layer (step 74). For example, computer 12 may generate a contour tool path that defines the outer ring for perimeter path 38. In alternative examples, a given layer may include multiple contour tool paths for building multiple and separate parts and/or may include an exterior and an interior contour tool path for a single part (e.g., having a hollow interior cavity). At this point, the start and stop points for each generated contour tool path are collinear with the perimeter of the layer.
[0052] Computer 12 may then adjust the locations of the start point and/or the stop point to coordinate locations that are within the interior region for each generated contour tool path (step 76). For example, computer 12 may adjust the start point from point 58 to point 52, and may adjust the stop point from point 60 to point 54. This places start point 52 and stop point 54 within interior region 50. In an alternative embodiment, steps 74 and 76 of method 66 may be performed in a single step. In this embodiment, the adjustment locations of the start and stop points may be generated along with the generation of the contour tool path(s) (e.g., as predefined offset locations).
[0053] After the start and stop points are positioned in the interior region of the layer (e.g., within interior region 50 of layer 36), computer 12 may then generate additional tool paths (e.g., raster paths) to bulk fill the interior region (step 78). In this step, the generated additional tool paths desirably account for the locations of start point 52 and stop point 54, and the segments of contour tool path 40 that extend into interior region 50. When the layer is completed, computer 12 may then determine whether the current layer is the last of the sliced layers (step 80). In the current example, layer 36 is not the last layer. As such, computer 12 may select the next layer (step 82) and repeat steps 74-82 until the last layer is completed.
[0054] When the last layer is completed, computer 12 may transmit the resulting data to system 10 for building 3D model 26 and support structure 28 (step 84). During the build operation, extrusion head 20 follows the patterns of the tool paths for each layer, including the contour tool paths with the adjusted start and stop points. As such, each layer of 3D model 26 and/or of support structure 28 may include a concealed seam having start and stop points located within the interior region of the given layer. Furthermore, the seams of adjacent layers may be offset from each other, thereby further obscuring the locations of the seams.
[0055] FIGS. 5-13 are alternative sectional views of section 3 shown in FIG. 2, illustrating layers 136-936, which are alternatives to layer 36 (shown in FIGS. 2 and 3) having different start and stop points, and where the references labels are increased by 100-900,respectively. As shown in FIG. 5, layer 136 includes contour tool path 140 having start point 152 and stop point 154 in a closed-square arrangement. In this embodiment, start point 152 is positioned at the same coordinate location within interior region 150 as start point 52 (shown in FIG. 3). The location of stop point 154, however, causes contour tool path 140 to turn at corner point 186. As such, contour tool path 140 extends inward from point 160 in the direction of arrow 162, and turns in the direction of arrow 188 at corner point 186 toward stop point 154. This arrangement further reduces the porosity of layer 136 by creating a bend of the deposited roads of build material within interior region 150.
[0056] As shown in FIG. 6, layer 236 includes contour tool path 240 having start point 252 and stop point 254 in an overlapped closed-square arrangement. In this embodiment, start point 252 and stop point 254 are positioned at the same coordinate location within interior region 250 (i.e., stop point 254 overlaps start point 252). This arrangement also includes corner point 286, which bends contour tool path 240 in the same manner as discussed above for corner point 186 (shown in FIG. 5), which is beneficial for reducing porosity while also concealing seam 264.
[0057] The embodiment shown in FIG. 6 may be performed by gradually increasing the volumetric flow rate of the modeling material as extrusion head 20 travels between start point 252 and point 258, and also by gradually reducing the reducing the volumetric flow rate of the modeling material as extrusion head 20 travels between point 260 and stop point 254. For example, when extrusion head 20 travels along contour tool path 240 between start point 252 and point 258 in the direction of arrow 256, controller 30 may direct extrusion head 20 to gradually increase the volumetric flow rate from zero up to 100% of the standard operational rate. Extrusion head 20 may then deposit the modeling material at 100% of the standard operational rate while forming perimeter path 238 along arrows 244. Then, when extrusion head 20 travels along contour tool path 240 between point 260 and stop point 254 in the directions of arrows 262 and 288, controller 30 may direct extrusion head 20 to gradually reduce the volumetric flow rate from 100% of the standard operational rate down to zero. This process reduces the amount of modeling material that is accumulated along the vertical z-axis at the intersection of start point 252 and stop point 254.
[0058] As shown in FIG. 7, layer 336 includes contour tool path 340 having start point 352 and stop point 354 in an open-triangle arrangement. In this embodiment, start point 352 and stop point 354 extend at angles relative to the orthogonal directions of start point 52 and stop point 54 (shown in FIG. 3). In this embodiment, the corner points that direct contour tool path 340 into and out of interior region 350 (i.e., points 358 and 360) are desirably offset from each other by a distance that is about 90% of road width 342 to about 100% of road width 342. This allows seam 364 to be properly sealed at exterior surface 346 of perimeter path 338.
[0059] As shown, start point 352 is positioned at a coordinate location within interior region 350 that is offset at angle α from the orthogonal axis to contour tool path 340 at perimeter path 338 (i.e., taken at point 358). Similarly, stop point 354 is positioned at a coordinate location within interior region 350 that is offset at angle β from the orthogonal axis to contour tool path 340 at perimeter path 338 (i.e., taken at point 360). Angles α and β may be the same values from their respective orthogonal axis, or may be different values, which may be affected by the geometry of layer 336. Examples of suitable angles for each of angle α and angle β range from zero degrees (i.e., parallel to the orthogonal axis, as shown in FIG. 3) to about 60 degrees, with particularly suitable angles ranging from about 30 degrees to about 45 degrees. The angled locations of start point 352 and stop point 354 reduce the extent that start point 352 and stop point 354 extend into interior region 350. This is arrangement suitable for use with 3D models having thin-walled regions.
[0060] As shown in FIG. 8, layer 436 includes contour tool path 440 having start point 452 and stop point 454 in a closed-triangle arrangement. In this embodiment, start point 452 extends at an angle relative to the orthogonal direction of start point 52 (shown in FIG. 3) in a similar manner to that discussed above for start point 352 (shown in FIG. 7). Furthermore, this arrangement includes corner point 486, which bends contour tool path 440 in a similar manner to that discussed above for corner point 186 (shown in FIG. 5). This combination further reduces porosity, and also further reduces the extent that start point 452 and stop point 454 extend into interior region 450. As such, this embodiment is also suitable for use with 3D models having thin-walled regions.
[0061] As shown in FIG. 9, layer 536 includes contour tool path 540 having start point 552 and stop point 554 in a converging-point arrangement. In this embodiment, start point 352 and stop point 354 are positioned closer to each other compared to points 558 and 560. The corner points that direct contour tool path 540 into interior region 550 (i.e., points 558 and 560) are also desirably offset from each other by a distance about equal to the road width of perimeter path 538. As such, start point 552 and stop point 554 are offset from each other by a distance that is less than the road width.
[0062] This embodiment may be performed by gradually increasing the volumetric flow rate of the modeling material as extrusion head 20 travels along contour tool path 540 in the direction of arrow 556 between start point 552 and point 558. Similarly, as extrusion head 20 travels along contour tool path 540 in the direction of arrow 562 between point 560 and stop point 554, the volumetric flow rate may gradually decrease. This allows proper amounts of modeling material to be deposited at seam 564 and also reduces the amount of modeling material that is accumulated along the vertical z-axis at the intersection between start point 552 and stop point 554.
[0063] As shown in FIG. 10, layer 636 includes contour tool path 640 having start point 652 and stop point 654 in an overlapped-cross arrangement. In this embodiment, the relative locations of start point 652 and stop point 654 cause contour tool path 640 to overlap at seam 664. This embodiment may also be performed by gradually adjusting the volumetric flow rate of the modeling material as extrusion head 20 travels along contour tool path 640. For example, the volumetric flow rate may be decreased from 100% of the standard operational rate at point 660 down to zero at stop point 654. However, in this embodiment, it is desirable for the volumetric flow rate of the modeling material to be substantially decreased at or shortly after point 660 to reduce the amount of modeling material that is accumulated along the vertical z-axis a seam 664.
[0064] Accordingly, during a build operation, extrusion head 20 may initially follow contour tool path 640 from start point 652 to point 658 in the direction of arrow 656. The volumetric flow rate of the modeling material may also be gradually increased at this stage. Extrusion head 20 may then deposit the modeling material at 100% of the standard operational rate while forming perimeter path 638 along arrows 644. Then, extrusion head 20 travels along contour tool path 640 in the direction of arrow 662 between point 660 and stop point 654, overlapping the previously deposited modeling material. As such, as extrusion head 20 travels in the direction of arrow 662, the volumetric flow rate may be decreased to reduce the amount of modeling material that is accumulated along the vertical z-axis at seam 664. The overlapping arrangement shown in FIG. 10 further reduces porosity by effective overlapping the intersection at seam 664. In additional embodiments, contour tool path 640 may further bent within interior region 650 to position stop point 654 at or adjacent to start point 652, as discussed above for the embodiments of layers 136 and 236 (shown in FIGS. 5 and 6, respectively).
[0065] FIGS. 11 and 12 illustrate additional alternative embodiments in which the contour tool path also functions as an interior raster path to fill at least a portion of the interior region. As shown in FIG. 11, layer 736 includes contour tool path 740 having start point 752 located adjacent to exterior surface 746. As such, in this embodiment, start point 752 is not adjusted to a location within interior region 750. However, the stop point of contour tool path 740 (not shown) is adjusted to a location within interior region 750 and contour tool path 740 is generated to at least partially fill interior region 750 with a raster pattern.
[0066] During a build operation, extrusion head 20 initially follows contour tool path 740 from start point 752 in the direction of arrow 744 to form perimeter path 738. Upon reaching point 760, extrusion head 20 then turns and follows contour tool path 740 in the direction of arrow 762 and continues to deposit the modeling material in a back-and-forth raster pattern within interior region 750. This embodiment is beneficial for reducing the number of times that a tip of extrusion head 20 needs to be picked up and moved. Since this process can be performed with each layer of 3D model 26 and support structure 28, this can provide substantial time savings when building 3D model 26 and support structure 28 in system 10.
[0067] Additionally, start point 752 and the stop point for contour tool path 740 may also be positioned at locations in the x-y plane that will maximize the area of interior region 750 that is filled with the raster pattern of contour tool path 740. For example, after generating contour tool path 740, pursuant to step 74 of method 66 (shown in FIG. 4), the start and stop points may be repositioned around the perimeter to a point that maximizes the raster pattern fill within interior region 750 before reaching the stop point. This further reduces the number of times that a tip of extrusion head 20 needs to be picked up and moved for building each layer. Furthermore, the generated raster pattern for contour tool path 740 may be offset by an angle between each successive layer (e.g., by 90 degrees). As a result, repositioning the start and stop points in this manner will cause the seams of each successive layer to be positioned at different locations in the x-y plane. This further conceals the seams of a 3D model (e.g., 3D model 26) by staggering the locations of the seams between successive layers.
[0068] As shown in FIG. 12, layer 836 includes contour tool path 840 having both start point 852 and the stop point (not shown) located within interior region 850, where contour tool path is generated to at least partially fill interior region 850 with a raster pattern, as discussed above for layer 736 (shown in FIG. 11). In the embodiment shown in FIG. 12, however, start point 852 is also located within interior region 850, desirably at an angle that substantially follows the raster pattern of contour tool path 840. This combines the process time savings attainable with the integrated raster pattern along with the reduced porosity that is achieved by positioning start point 852 within interior region 850. These benefits are in addition to the concealment of seam 864, which allows the dimensions of perimeter path 838 at seam 864 to be truer to the dimensions of the digital representation of 3D model 26 and increases the consistency of the seams of successive layers of 3D model 26.
[0069] As shown in FIG. 13, layer 936 includes contour tool path 940 having start point 952 and stop point 94 in a crimped-square arrangement. In this embodiment, start point 952 is positioned within interior region 950 such that contour tool path 940 turns at corner points 986a and 986b. During a build operation, extrusion head 20 initially follows contour tool path 940 from start point 952 in the direction of arrows 956a, 956b, and 956c, until it reaches point 958. Extrusion head 20 may form perimeter path 938 along arrows 944 until it reaches point 960. Extrusion head 20 may then turn inward until it reaches stop point 954. In an alternative embodiment, start point 952 and stop point 954 may be flipped such that the crimped square geometry is formed around start point 952. The arrangement depicted in FIG. 13 positions start point 952 and stop point 954 within interior region 950, while also further reducing the porosity of layer 936 by crimped square of the deposited roads of build material within interior region 950.
[0070] FIGS. 14 and 15 illustrate layer 1036, which is an additional alternative to layer 36 (shown in FIGS. 2 and 3), where the reference labels are increased by 1000. As shown in FIG. 14, layer 1036 includes perimeter paths 1038a and 1038b, which are a pair roads of a modeling material that is deposited by extrusion head 20 along contour tool path 1040 in two passes, as represented by arrows 1044 (first pass to form perimeter path 1038a) and arrows 1090 (second pass to form perimeter path 1038b). As further shown, perimeter path 1038a includes exterior surface 1046 and perimeter path 1038b includes interior surface 1048. Exterior surface 1046 is the outward-facing surface of perimeter path 1038a, which may be observable when 3D model 26 is completed. Interior surface 1048 is the inward-facing surface of perimeter path 1038b, which defines interior region 1050. Interior region 1050 is the region of layer 1036 confined within perimeter paths 1038a and 1038b, and may be filled with additional modeling material deposited along additionally generated tool paths (e.g., raster paths, not shown).
[0071] As shown in FIG. 15, contour tool path 1040 includes start point 1052 and stop point 1054, where stop point 1054 is located within interior region 1050. Accordingly, during the build operation, controller 30 directs extrusion head 20 to begin depositing the modeling material at start point 1052, and to move along contour tool path 1040 in the direction of arrows 1044 until reaching point 1092. This substantially forms perimeter path 1038a. At this point, while continuing to deposit the modeling material, extrusion head 20 steps over from perimeter path 1038a to begin forming perimeter path 1038b at point 1094. Extrusion head 20 then continues to moves along contour tool path 1040 in the direction of arrows 1090 until reaching stop point 1054. This forms perimeter path 1038b.
[0072] As shown, stop point 1054 is adjusted to a location within interior region 1050. As such, seam 1064 also extends inward within interior region 1050. This effectively eliminates the formation of bulges of modeling material at seam 1064. Additionally, the step-over arrangement also reduces the porosity of 3D model 26 at seam 1064, thereby reducing or eliminating the transmission of gases and/or liquids through seam 1064.
[0073] In an alternative embodiment, start point 1052 and stop point 1054 may be flipped such that start point 1052 is located within interior region 1050. In this embodiment, when extrusion head 20 reaches stop point 1054 (at the location of start point 1052 in FIG. 15), extrusion head 20 may step back again toward the location of stop point 1054 in FIG. 15, thereby creating an X-pattern at seam 1064. The volumetric flow rate of the modeling material is desirably reduced when stepping back again to reduce the amount of the modeling material that is accumulated along the vertical z-axis at seam 1064.
[0074] In additional alternative embodiments, the step-over arrangement may be continued to form additional perimeter paths 1038, thereby increasing the overall thickness of the perimeter paths. These embodiments are beneficial for use with thin-walled regions where the formation of raster patterns may be more time consuming. Furthermore, the embodiments discussed in FIGS. 14 and 15 may be combined with the raster pattern embodiments shown in FIGS. 11 and 12. In these embodiments, contour tool path 1040 may step over into the raster pattern to fill at least a portion of interior region 1050.
[0075] FIG. 16 is an alternative sectional view of section 15 shown in FIG. 14, illustrating layer 1136, which is an alternative to layer 1036 (shown in FIGS. 14 and 15) having a different stop point, and where the references labels are increased by 100. As shown in FIG. 16, contour tool path 1140 of layer 1136 includes start point 1152 and stop point 1154, where start point 1152 is located at the same position as start point 1052 (shown in FIG. 15). Stop point 1154, however, stops the deposition of the modeling material prior to forming a complete ring for perimeter path 1138b. While shown at the particular location in FIG. 16, stop point 1054 may be located at any distance from point 1194. This embodiment is also suitable for extending seam 1164 inward within interior region 1150, thereby effectively eliminating the formation of bulges of modeling material at seam 1164. Additionally, the step-over arrangement also reduces the porosity of 3D model 26 at seam 1164 and the shortened length of perimeter path 1138b is beneficial for use in thin-wall regions.
[0076] The present disclosure is more particularly described in the following examples that are intended as illustrations only, since numerous modifications and variations within the scope of the present disclosure will be apparent to those skilled in the art. Build operations were preformed with the method of the present disclosure to fabricate 3D models of Examples 1-4, each having concealed seams. Each 3D model of Examples 1-4 were built from the same digital representation having a filled cylindrical geometry.
[0077] For each 3D model of Examples 1-4, the digital representation was provided to a computer capable of communicating with an extrusion-based digital manufacturing system. The computer then sliced the digital representation into multiple layers with a software program commercially available under the trade designation "INSIGHT" from Stratasys, Inc., Eden Prairie, Minn. The software program also generated contour tool paths for each sliced layer. In addition, the start and stop points of each contour tool path were adjusted to predefined locations within the interior regions defined by the respective contour tool paths.
[0078] The start and stop points for Example 1 were adjusted to an open-square arrangement as depicted in layer 36 (shown in FIG. 3). The start and stop points for Example 2 were adjusted to an overlapped closed-square arrangement as depicted in layer 236 (shown in FIG. 6). The start and stop points for Example 3 were adjusted to an converging-point arrangement as depicted in layer 536 (shown in FIG. 9). The start and stop points for Example 4 were adjusted to an overlapped-cross arrangement as depicted in layer 536 (shown in FIG. 10). For each modified contour tool path, raster tool paths were then generated within the interior regions, where the raster tool paths accommodated the adjustments to the start and stop locations of the contour tool paths.
[0079] In addition to the 3D models of Examples 1-4, a 3D model of Comparative Example A was prepare from the same digital representation and using the same above-discussed steps. However, for Comparative Example A, the start and stop locations of the contour tool paths were not adjusted. As such, the start and stop locations remained collinear with the outer rings of the contour tool paths.
[0080] For each 3D model of Examples 1-4 and Comparative Example A, the resulting data was then transmitted to the extrusion-based digital manufacturing system, which was a fused deposition modeling system commercially available under the trade designation "FORTUS 400mc" from Stratasys, Inc., Eden Prairie, Minn. Based on the received data, the system then built each 3D model from an acrylonitrile-butadiene-styrene (ABS) copolymer modeling material.
[0081] After the build operations were completed, the perimeter path seams of each 3D model was visually inspected. For the 3D model of Comparative Example A, the perimeter path seams exhibited surface bulges of modeling material that were readily identifiable by the naked eye. In comparison, however, the perimeter path seams of the 3D models of each of Examples 1-4 did not exhibit any surface bulging and were consistent between the successive layers. As such, the method of the present disclosure is suitable for effectively concealing the seams of the perimeter paths (created by the contour tool paths). As discussed above, this may increase the aesthetic and functional qualities of the resulting 3D models.
[0082] Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention.
Patent applications by Donald J. Holzwarth, Minnetonka, MN US
Patent applications by Paul E. Hopkins, Savage, MN US
Patent applications by STRATASYS, INC.
Patent applications in class Discontinuous or differential coating, impregnation or bond (e.g., artwork, printing, retouched photograph, etc.)
Patent applications in all subclasses Discontinuous or differential coating, impregnation or bond (e.g., artwork, printing, retouched photograph, etc.)
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With her EP You Got the Luck dropping on May 10th, Sidibe has plenty to feel lucky about, including her most recent feature as an artist to watch on Tidal Rising.
Ever since putting out her delightful 2014 debut Metaphysical and follow-up EP Soul Siren, soul singer Sidibe has been hard at work, channeling the likes of such iconic artists as Sade, Janet Jackson and Joni Mitchell while developing her own distinct sound. Currently based in Los Angeles, Sidibe made a strong impression on the music world from the very start, impressing with her penchant for catchy yet wholly meaningful material.
On her forthcoming EP You Got the Luck, Sidibe and her long-time creative partner/producer Nico Stadi brought in Grammy award winning producers Warryn Campbell and Jack Splash. Together, they blended their funk, pop, soul and R&B influences to create songs reminiscent of our favorite classics, but with a fresh and modern production.


This simple but highly emotional act of reconciliation between the people of Jersey and the German townsfolk, was the culmination of 30 years of dedication and persistence by ex-internees and the people of a foreign town that was their prison during the Second World War.
The two communities that now share close ties were brought together through adversity of war in 1942, when Hitler ordered the deportation to internment camps in Europe of British-born Channel Islanders and their families.
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The reconciliation between former enemies is not just confined to cultural, working and sporting exchanges between the town and the parish. There have been other partnerships involving the Jersey Arts Centre, the Youtheatre, The National Trust for Jersey and Jersey Heritage. A travel bursary has been established and students from Jersey and Bad Wurzach have worked in each others communities.
Bad Wurzach has also become an established participant in the Battle of Flowers with five bands having taken part since 2003.


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Review: 'The Mother', a riveting study of depression
Published by capeetc on February 13, 2017
For those of you who saw The Father at The Fugard last year, you'll have a fair idea of that play's companion piece, The Mother, in terms of structure and point of view. Both works, written by French playwright Florian Zeller and translated into English by Christopher Hampton, explore the nuances of mental illness.
Told through the eyes of the protagonists, these works seek to leave their audience with a closer understanding of these characters' conditions. In The Father, the focus of the story was dementia, while The Mother looks at depression. And if you thought the first was both moving and tragic, then you ain't seen nothing yet, my friends!
The Mother's titular character, Anne (TV-veteran Anna-Mart van der Merwe), is a housewife who has seen her children grow up, leave home and proceed not to make much contact with her. Her husband Pierre (Graham Hopkins) seems to be chained to his office desk and always on business trips. Anne is suspicious of Pierre, hurling insults and accusations at him at numerous points during the play's 80-odd-minute run. But, of course, we cannot too easily rely on Anne's opinion as scenes are reenacted so the audience is able to understand and (attempt to) pick apart her psychological frailty.
Then there's the matter of Anne's kids. Her son, Nicolas (Sven Ruygrok), stops by for the night after a row with his girlfriend Élodie (Amy-Louise Wilson, who also starred in The Father). Upon his entrance, the audience witnesses Anne's unhealthy connection to him. She mollycoddles him, insults his girlfriend at every opportunity and invites him to stay for an indefinite period of time. He has clearly had his fill of his mother's incessant smothering, and tensions mount when Élodie shows up.
Florian Zeller's plays may be greatly similar on a thematic level, but there are more subtle elements that connect them. Each protagonist has a daughter who is spoken of but unseen and often confused with another character (Elise in The Father; Sara in The Mother). In terms of set design, the fact that Birrie Le Roux was assisted by Rocco Pool (set designer for The Father) is immediately apparent. The Mother's décor consists of background panels that recall the moving clouded screens in The Father, and both productions share the constant presence of a living room seat and a table or surface on which stands a bottle of red wine.
There is, however, a particularly riveting addition to the visual experience of The Mother. We are offered further insight into Anne's inner torment thanks to a video in triptych played at certain moments on the set's background panelling. It shows either Anne in a state of anguish or other characters as she sees them. It's an effective addition of technical media that parallels in the disruptive and disjointed audio featured in The Father to reflect the mental decline of its protagonist André.
One notable aspect of both plays is how they depict conventional parental roles. In the same way that André is steadily deprived of his fatherly authority, Anne can no longer live out the satisfaction of being a source of domestic comfort. She is bored, lonely, abandoned and desperate. And the reason these feelings are conveyed so well in this production of The Mother is the truly outstanding work done by Anna-Mart van der Merwe. The play is particularly physical at certain points, and Anna-Mart effortlessly combines her voice, face and body to tell the story of her character's breakdown.
Sven, Graham and Amy-Louise also give commendable performances as three equally indecipherable people. Are Nicolas and Pierre merely pushed to their limits or are they as respectively insensitive and unfaithful as Anne suspects? And what kind of girl is Élodie? She is, after all, introduced twice. In her first scene, she is cruel to Anne while in the second, she is polite.
Director Janice Honeyman, who everyone should know as the Queen of South African pantomime, has brought some beautiful and necessary insight onto the often misunderstood topics of depression and mental illness in general. And one aspect of The Mother which particularly intrigues, and which also (if I am right in my assumption) connects this play more directly to The Father, is that 'Anne' and 'Pierre' are the names of André's daughter and son-in-law in the latter play. Could Florian Zeller be emphasising the fact the mental instability adopts various guises, can arise unexpectedly and cannot be read too simply? Like these two plays, it is complex, painful to experience, and in need of genuine attention and understanding.
When Tuesday 14 February – Saturday 4 March at 8 pm
Where The Fugard Theatre, Corner of Harrington Street and Caledon Street, District Six
Cost R130 – R160 at Computicket
Contact +27 21 461 4554, [email protected], thefugard.com
Photography Daniel Rutland Manners
Article written by capeetc
We love this place! Cape Town Etc features news, reviews, entertainment and lifestyle in the Mother City.
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Buddha Necklace Sometimes A Positive Outlook Like The Buddha Is All You Need To is one of the best ring designs for this year. With the right combination of motifs and colors, this ring fits perfectly on your finger. Here you can find various other examples of rings.


Your Free Printable February 2017 calendar template is ready to help you track your appointments and activities. Perfect for the office, school, or home. We also have a variety of free 2017 annual calendars, which you can see here. To get the printable image, just pick the thumbnail of the design you like and click to arrive at the full-sized calendar. The print from your browser or save to use later. Please share this site with your friends and link to use when you can. Helping us grow keeps this service free and easy.


Last night the Digicel-sponsored Barbados Football Association's Premier League provided nightmares for both Weymouth Wales and University of the West Indies Blackbirds at the Wildey, St Michael Astro Turf.
In the first game of the night underdogs Silver Sands came from behind to earn an unlikely 2-2 draw with Wales. And UWI went down to Pride of Gall Hill 2-0 in the second game played.
If both Wales and UWI had won their encounters it would have put them in close contention for the League title with Rendezvous who are in the lead on 29 points. But the fact that two lesser-ranked teams in the competition got good results against them, they have now given Rendezvous the opportunity to extend their lead with one game in hand.
UWI's Amal Mayers (left) and Gall Hill goal-scorer Rico Graham battle for the ball.
So far Rendezvous have played 12 games with nine wins, two draws and one loss. While Wales who earned just one point for their draw last night and are in second position have now moved up to 27 points after playing 13 matches in total with seven wins and six draws. Meanwhile UWI in third position on 24 points have also played 13 games with seven wins along with three draws and three losses.
Silver Sands who have played the most matches so far, with 14 under their belts, have managed to win two games, with 11 defeats and last night's draw. Last night they found their moment of glory when they came from behind in the dying stages of the second half and scored two quick goals with much thanks to the Wales' defenders who were found napping.
The first goal came in the 83rd minute when the ball was played through the middle to Carlos Ward who unleashed a thunderous shot at goal from the right and scored past Wales goalkeeper Bentley Springer who was furious with his defenders.
Then Jamal Pinder put a spoke in Wales' wheels when again the ball was played inside the box and Pinder got a touch on to it and again Springer could not do anything. Earlier in the first half Jadai Clarke and Jomo Harewood scored in the 24th and 45th minute respectively for Wales.
Jadai Clarke (left) tried to maintain ball possession while Cameron Lewis of Silver Sands tried to put him under pressure.
In the other game Rico Graham put Gall Hill up 1-0 in the 39th minute over UWI and then Rashad Parris came back in the 57th minute of the second half and added goal number two for his side. Gall Hill are one place higher than Silver Sands in ninth position even though the two teams are now jointly tied on seven points.


The fleet operation must have a published list of the measures they use to document performance and progress toward objectives. It must also have a review mechanism in place to measure both individual and team productivity for each area of the fleet operation.
The fleet must have a technology deployment plan that is reviewed and updated annually. The technology may include, but is not limited to, fleet information, diagnostic tools, training aids, communication effectiveness-both internal (within the fleet) and external (vendors, customers, governing agencies)-and effective use of the resources available on the world-wide web.
Generally known as bottom up rather than the top-down model of old, the fleet operation must demonstrate how they encourage the sharing of ideas among all fleet personnel. The operation must also document changes made and performance improvements achieved through the use of collaboration among individuals, as well as different areas of the fleet service delivery processes.
The fleet operation must describe and document how creativity has been encouraged and how new ideas and new technologies have been developed and deployed to address challenges within the operation.
A peak performing operation always finds ways to have fun and to celebrate their successes. The fleet must be able to provide a listing of how often and in what ways they celebrate the successes of their operation.
In such a culture, all employees feel confident to contribute and to even disagree. The operation must demonstrate the existence of such a culture by having mechanisms in place that encourage and reward open sharing of information and ideas.
Programs must be in place to both acknowledge and reward (even if only with a certificate or plaque) excellent performance and/or the attainment of preset goals, whether certification or meeting some level of desired performance improvement. These programs must be in place for periodic recognition of both individuals and teams where applicable.
There must be a metric in place that is regularly measured and reviewed to determine how often any piece of equipment is returned to the shop for rework or additional repair (i.e., missed in initial repair visit). An aggressive program to minimize trips to the repair facility must be in place.
Programs must be in place to measure repair turnaround. This turnaround time must be measured accurately, i.e., from initial drop-off until notice of repair completion. In addition, since scheduling of repairs impacts this area significantly, the scheduling process for the fleet operation must be described, as well as documented effectively.
The fleet operation must document and compare their cost of regular repairs with surrounding commercial and public agency fleets and have a program in place that keeps their customers informed of this fact.
A program for ensuring that a/l staff members have individualized plans for continued growth and development must be in place. This plan could include strategies such as regular goal-setting, career pathing, self-evaluation, training hours required/taken, peer and supervisor evaluations, as well as' other viable, documented practices for the ongoing development of skiffs and talents.
A plan must be in place for maximizing the utilization of all resources, including human, capital, and natural. Practices that demonstrate a concern for the environment and the organization's resources must be documented.


text:
Weldon Spring est une ville du comté de Saint Charles, dans le Missouri, aux États-Unis. Située au sud du comté, elle est fondée en 1864 et incorporée en 1984.

Démographie
Lors du recensement de 2010, la ville comptait une population de . Elle est estimée, en 2016, à .

Références

Voir aussi

Article connexe
 Missouri

Liens externes
 .

Source de la traduction

Comté de Saint Charles
City au Missouri

redpajama_set_name: RedPajamaWikipedia


Decked with snap button plackets on the sides, this olive trench coat from MANGO is resolutely modish. Tailored from Lyocell fabric, it assures to lend you superb comfort throughout the wear. The flap pockets on the front add to both style and utility factors. This solid trench coat is a perfect pick for layering.
Model Stats :Model is wearing size 20 and her height is 5'6", bust 34", waist 24" and hips are 35".


The goal is simple, ChargeTech was you to stay connected to your digital world regardless of location with free cell phone chargers … everywhere.
ChargeTech's goal is to ensure every home, office, school, hotel, restaurant, bar and coffee shop around the world, offers some sort of free mobile charging solution. Their popular products have been tested and are highly recommended by tech communities around the world.
2. Why Do I Need A Charging Station?
Over 90% of people around the world own a cell phone, the low battery issue is a universal problem everybody can relate to. We know there are other options out there, but really… ask yourself this question, what happens when you're out, and your cell phone dies? Where can you go to charge your phone? The idea is to place phone chargers everywhere. Starbucks offers free Wi-Fi, right? It's the same idea. Attract more customers and keep your guests longer & happier.
If you have any questions about the different solutions we offer businesses, or about our products and installation services, you can always contact us directly.


Experts will share the latest advances in super-resolution microscopy during a four-day symposium at The University of Queensland's (UQ) Microscopy Week.
Two microscopy symposiums will be held at various faculties and institutes across UQ from April 1 – 4, including the Queensland Brain Institute (QBI), Institute for Molecular Bioscience (IMB), the Centre for Microscopy and Microanalysis (CMM) the Translational Research Institute (TRI) and the Australian National Fabrication Facility – Queensland Node (ANFF-Q).
The program, to be officially opened by Ambassador of France to Australia, His Excellency Mr Stéphane Romatet, includes 40 national and international speakers, who will highlight microscopy research occurring across a range of disciplines.
Professor Fred Meunier, who works within QBI's Advanced Microscopy Facility - home to two of Australia's most powerful super-resolution microscopes – says this superior technology has a significant impact on research.
"With a resolution of up to 10 times greater than previously possible, the super-resolution technology is quickly gaining recognition with researchers across a range of disciplines," Professor Meunier said.
"The advanced technology breaks the diffraction limit of light, giving researchers the opportunity to clearly visualise the connections between neurons and observe never-before-seen structures," he said.
Super resolution microscopes also enable single molecule imaging, a Queensland first, which will allow the study of individual receptors on synaptic terminals.
The first symposium, Microscopy @ UQ (April 1-3), will highlight microscopy research occurring throughout UQ to strengthen collaboration and educate early career researchers and research students.
On Wednesday the 4th of April the Queensland Brain Institute (QBI) will be hosting a Super-Resolution Symposium.
Speakers include Daniel Choquet (Director of the Interdisciplinary Institute for Neuroscience, Bordeaux France) and Professor Kat Gauss from the University of NSW.
Workshops with hands on experience to key super-resolution techniques will be provided on the following Monday and Tuesday (7th and 8th of April).
These workshops in include a single-molecule imaging workshop focusing on particle tracking and PALM/STORM microscopy hosted at QBI and led by Drs Jean-Baptiste Sibarita and Eric Hosy from the Interdisciplinary Institute for Neuroscience, Bordeaux France.
A Structured Illumination Microscopy (SIM) workshop, hosted at TRI, on the newly installed OMX instrument and a workshop highlighting the advanced capabilities of Atomic Force Microscopy (AFM), hosted by ANFF-Q at the AIBN.


GlobalData provides unique and market-leading data and insights into the cardiovascular devices market. Browse or search our Report Store for the latest comprehensive reports, market data, analysis and survey findings alongside industry information on key companies, markets and financial deals.
"What is covered in the report about the "Netherlandss Cardiac Assist Devices Market"?
GlobalData's "Netherlandss Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the Netherlandss Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps and Ventricular Assist Devices.
Note: This is an on-demand report and will be delivered within 2-3 business days of the purchase (excluding weekends).
"What is covered in the report about the "New Zealands Cardiac Assist Devices Market"?
GlobalData's "New Zealands Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the New Zealands Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps and Ventricular Assist Devices.
"What is covered in the report about the "South Africas Cardiac Assist Devices Market"?
GlobalData's "South Africas Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the South Africas Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps and Ventricular Assist Devices.
"What is covered in the report about the "Swedens Cardiac Assist Devices Market"?
GlobalData's "Swedens Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the Swedens Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps, Total Artificial Heart and Ventricular Assist Devices.
"What is covered in the report about the "Switzerlands Cardiac Assist Devices Market"?
GlobalData's "Switzerlands Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the Switzerlands Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps and Ventricular Assist Devices.
"What is covered in the report about the "Austrias Cardiac Assist Devices Market"?
GlobalData's "Austrias Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the Austrias Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps, Total Artificial Heart and Ventricular Assist Devices.
"What is covered in the report about the "Belgiums Cardiac Assist Devices Market"?
GlobalData's "Belgiums Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the Belgiums Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps and Ventricular Assist Devices.
"What is covered in the report about the "Finlands Cardiac Assist Devices Market"?
GlobalData's "Finlands Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the Finlands Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps, Total Artificial Heart and Ventricular Assist Devices.
"What is covered in the report about the "Israels Cardiac Assist Devices Market"?
GlobalData's "Israels Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the Israels Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps, Total Artificial Heart and Ventricular Assist Devices.
"What is covered in the report about the "Norways Cardiac Assist Devices Market"?
GlobalData's "Norways Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the Norways Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps and Ventricular Assist Devices.
"What is covered in the report about the "Denmarks Cardiac Assist Devices Market"?
GlobalData's "Denmarks Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the Denmarks Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps and Ventricular Assist Devices.
"What is covered in the report about the "Irelands Cardiac Assist Devices Market"?
GlobalData's "Irelands Cardiac Assist Devices Market Outlook to 2025" report is a comprehensive databook report, covering key market data on the Irelands Cardiac Assist Devices market. The databook report provides value (USD), volume (units) and average prices (USD) within market segments – Intra-Aortic Balloon Pumps and Ventricular Assist Devices.
"What is covered in the report about the "Austria Cardiovascular Devices Market"?
"What is covered in the report about the "Belgium Cardiovascular Devices Market"?
"What is covered in the report about the "Finland Cardiovascular Devices Market"?


I've always loved a good beef stroganoff. Typically, I use stew beef, but a few months back we tried it using plain old ground beef (since it thaws and generally cooks quicker) and it was just as big a hit as the original. We're no stranger to using wine, even beer, in our cooking. Here the red wine adds the 'oomph' that puts this beef stroganoff ahead of the rest. This recipe offers gourmet flavor on a budget.
1. Cook pasta according to package directions. While the water is boiling heat the oil in a large skillet over medium heat. Saute the onions and garlic for a minute. Crumble the beef and cook until it's fully browned. Season with salt, pepper, paprika, garlic powder, and Worcestershire. Stir occasionally.
2. Pour in the red wine. Let boil until it has evaporated.
3. Add in the dried thyme and mushrooms and let cook until the juices/liquid of the mushroom have been released. Pour in the beef broth and stir in the sour cream. Simmer until the mixture thickens, stirring occasionally, about 5-7 minutes.
4. Either mix the 'sauce' with the pasta or serve on top of your pasta of choice. A sprinkle of Parmesan cheese on top is the perfect piece de resistance.


With profound sadness we announce the sudden passing of our husband, father, grandfather, uncle and brother. He was predeceased by his wife Kitty, daughter Katherine and son Sean.
He will be deeply missed by his best friend and wife of 21 years, Tina, his son Donovan (Leanne), daughter Theresa (Rod), step-daughters Patti (Paul), Beth (Brian) and Sharlene, his beloved grandchildren Morgan Hanlon, Sarah McCullough, Steven Turchet, Kendra Vizzutti, Scott Livingstone, Amanda Turchet, Brett Vizzutti (Jill), his brothers John and Brian, numerous nieces and nephews, and extended family.
He was proud honourary life member of the 4th Degree Knights of Columbus.
Funeral service to be held at the Catholic Church of the Ascension, Parksville, BC on Saturday, August 15, 2015 at 11:00am.


Airsys and DRL have teamed up to become official 'Radio Communications Sponsors' of The 20th Safaricom Marathon and Half Marathon.
This collection of five Motorola Solutions radios has been designed so every user can find the right device to meet their needs.
products, services and training that have been individually chosen by Airsys to empower your business.
Airsys and Motorola Solutions were pleased to attend the IDME as exhibitors during its two-day, free-to-attend event showcasing specialist equipment, technology and services for disaster prevention, response and recovery. It was expected that over 5,000 visitors attended including; governments, NGOs, aid agencies, search and rescue and emergency response teams as well as audience across the public and private sectors..
On Thursday 28th March 2019, Airsys and Motorola Solutions held a very exciting and successful partnership event that involved a range of promotions, incentives and prizes limited to one day only..
Airsys welcomed senior Motorola Solutions personnel to their head office to celebrate and recognise their collaborative success in 2018; while also looking forward to future growth in 2019 and beyond..
Copyright © 2019 Airsys Communications Ltd. All Rights Reserved.


Mr. /Ms. Below you will find the AD INFORMATION for our printing magazine and also for our online version, plus complimentary information as editorial line, market profile, magazine circulation and distribution.
Soul Brasil is published 7 times a year FREE for the public in over 320 distributions spots/locations in U.S territory – mostly in California. Our commitment is with artistic, cultural and healthy issues as well world music, tourism in Brazil and of course global concerns, ecologic and social responsibilities.
Our site and our printing magazine is dedicated to inspiring the reader to live a healthy, balanced and fulfilling life, offering articles and information that might help balance your life - body/mind/spirit, and for sure try keeping them in touch with the Brazilian Spirit. In this aspect our main goal is "building" a cultural bridge throughout the arts and culture between Brazil and United States.
Our target is the "global" community looking for a better quality life, as well the growing Brazilian community in U.S and the lovers of Brazil around the world.
Gender: 54% Female and 46% Male / Education: 95% Graduate from High School -> Incomes: 14% Less than $15.000, 47% $15.001 to $30.000, 39% more than $30.001 -> Ages: 7%... 15-18 years, 17%...19-23 years, 32%...24-30 years, 44%...31 or more.
Over 350 locations as Brazilian, Latino and Natural Markets; Coffee Houses, Yoga, Jiu-Jitsu and Capoeira Academies, Soccer Stores, Alternative Health Clinics, Music and Percussion Stores, Brazilian and Natural Restaurants, as well direct mail to Soul Brasil magazine subscribers.
and help your company to reach this important and growing market segment. Please check the AD rates and sizes bellow and feel free to call us and/or schedule an appointment to discuss our advertising proposal. If you have a special project that we can help you with, also please let us know.
Areas: San Diego , Los Angeles , Orange and Santa Barbara County's, plus Bay Area/San Francisco, Las Vegas and all the Brazilian Consulates in U.S territory.
All rates bellow has 5% off with commitment/contract for 3 issues = 6 months, 10% off 6 issues = 1 year.
* For the sizes above on 100% Glossy Stock (2nd and 3third cover) = premier location and best quality paper/stock (ADD 30% more).
** For the sizes above on book paper premier location (page 3 - on the right side of first inside cover, ADD 15% more, for the page 35 – on the left of the second inside cover ADD 5% more).
You can send artwork ready by digital file via internet from anywhere around the world to: info@soulbrasil.com or send a CD by mail to: P.O Box 2488. Toluca Lake, CA 91610. Artwork must be sent in PDF, JPG or TIF file, and 300 dpi resolution minimum for better results.
Usually the day 21 (twenty first – 7pm PT USA) of the month previous from the following edition (Example: Sep. 21 is the deadline for the Oct./Nov. edition and Nov. 21 is the deadline for the Dec./Jan. edition).
* If you need more information, feel free to contact us by phone or email. Will be our pleasure to assist you in your needs.
- $150 for exclusive event listing with text information, Hyperlinks and Digital Flyer.


text:
SP Stalingrad
It seems as though every CoD2 single-player map we get is great in design, appearance, gameplay, and so on. This one is no exception, a dep...
17.02MB in size
It seems as though every CoD2 single-player map we get is great in design, appearance, gameplay, and so on. This one is no exception, a depiction of a battle at Stalingrad inspired by the movie Enemy at the Gates (one of my personal favorites). Besides the well-done map itself, you'll find all sorts of cool single-player quirks like speaking AI with lip animation, unique objectives, and memorable scenes that could've come from a movie in themselves. Put all that together in a single-player map, and you're sure to have a fun experience, time and time again. Check out the screenshots of Babycop's Stalingrad below, and play it today! :thumbsup:
-xXezekielXx
Download 'stalingrad.zip' (17.02MB)
~ STALINGRAD ~
Here's a new single player map for Call of Duty 2.
Entitled Stalingrad, this mission is in part inspired by the film Enemy at the Gates,
and features unique objectives and memorable scenes.
This map was not meant to recreate scenes from the movie, but was simply inspired by it.
AUTHOR:      Babycop
NAME:        Stalingrad
MAP:         Single Player
TYPE:        Historical / Fictional
SIZE:        Medium / Large
BUILD TIME:  1 ½ months
The battle for Stalingrad took place between August 2nd 1942, and February 2nd 1943.
The capture of Stalingrad was important to Hitler for several reasons. It was a major
industrial city on the banks of the Volga River and its capture would secure the left
flank of the German armies. The fact that the city bore the name of Hitler's nemesis,
Joseph Stalin, would make the city's capture an ideological and propaganda coup.
However, ravaged by heavy bombardments and brutal battles, soviet snipers successfully
used the city's ruins to inflict heavy casualties on the Germans. Vasiliy Grigor´yevich
Zaytsev was credited with 242 kills during the battle.
The victory at Stalingrad marked the start of the liberation of the Soviet Union,
leading to eventual victory over Nazi Germany in 1945.
It is late autumn of 1942. You are a highly-praised soviet sniper. Crawling through
the city's underground, creeping through ruins, jumping from one building to another,
and engaging in close quarters combat as well as long-range shooting, you must make
your way across part of Stalingrad.  Around every corner is either friend or foe.
Your objectives are to gather intelligence, eliminate high-ranking officers and enemy
snipers, and provide covering fire for your comrades as they pursue their own objectives
to recapture lost ground.
- speaking AI with lip animation
- unique objectives
- creative and memorable
scenes (jumping through blown-out buildings and truck chase)
1. 	Open the Stalingrad.zip file
2. 	Extract the "Stalingrad.iwd" file into your "Call of Duty 2\main" directory
3. 	Start COD2 single player, open console and type: "map stalingrad"
Make sur the console command line is cleared of other characters
(i.e. '#' or '/' , etc.)
4.	Make sure you do not have developer option set in your single player shortcut
- due to a mysterious and unfixable leak, after much work and frustration, we had to
give up the extra compile for a fast compile, in order for the mission to work.
It is unfortunate. But hopefully the map won't suffer too much in the way of graphics.
- some lighting problems on certain brushes
We want to thank the modding community, as well as Modsonline and Call of Duty Files for
their support, forums, and tutorials without forgetting Planet Medal of Honour and CODUtility.
Also, thanks go out to all the people who have participated in the making of the great
movie Enemy at the Gates.
Finally, thanks to YouTube for hosting the promo video.
http://www.freewebs.com/cod2modding/
Thank you for downloading this single player map.
It is our 4th offical project.
Check out the other ones on our site.
- Babycop -
©2006-2007 Babycop
Babycop
Registered 25th August 2006