A 3D Printed Animated Angel Christmas Tree Topper.
Introduction: A 3D Printed Animated Angel Christmas Tree Topper.
I designed "A 3D Printed Animated Angel Christmas Tree Topper." for our 2020 Christmas Tree.
The model may be assembled without motorization for a static tree topper or centerpiece, and may also be illuminated using an LED from a 3VDC "flickering tea lamp".
As usual I probably forgot a file or two or who knows what else, so if you have any questions, please do not hesitate to comment as I do make plenty of mistakes.
Designed using Autodesk Fusion 360, sliced using Ultimaker Cura 4.7.0, and 3D printed in PLA on Ultimaker S5s.
Supplies
* 28AWG Stranded Wire.
* Soldering iron.
* Solder.
* Heat shrink tubing.
* Thick cyanoacrylate glue.
Step 1: Parts.
I acquired the following parts:
* One N20 6VDC 50RPM gear motor.
* One 3VDC power supply.
* One 3VDC flickering tea lamp LED and diffuser.
I 3D printed the following parts:
* One "Arm, Left.stl", .1mm layer height, 20% infill.
* One "Arm, Right.stl", .1mm layer height, 20% infill.
* Two "Axle, Arm.stl", .15mm layer height, 20% infill.
* One "Base.stl", .15mm layer height, 20% infill.
* One "Body.stl", .15mm layer height, 20% infill.
* Two "Bolt, Mount, Motor.stl", .15mm layer height, 20% infill.
* One "Cam.stl", .1mm layer height, 20% infill.
* One "Guide, Yoke.stl", .15mm layer height, 20% infill.
* One "Mount, Tree.stl", .15mm layer height, 20% infill.
* One "Mount, WIng, Left.stl", .1mm layer height, 20% infill.
* One "Mount, WIng, Right.stl", .1mm layer height, 20% infill.
* One "Retainer, Mount, Wing, Left.stl", .1mm layer height, 20% infill.
* One "Retainer, Mount, Wing, Right.stl", .1mm layer height, 20% infill.
* One "Wing, Left.stl", .15mm layer height, 20% infill.
* One "Wing, Right.stl", .15mm layer height, 20% infill.
* One "Yoke.stl", .1mm layer height, 20% infill.
This mechanism is a high precision print and assembly using at times very small precision 3D printed parts in confined spaces with highly precise alignment. I printed parts using the Ultimaker Cura 4.7.0 "Engineering Profile" on my Ultimaker S5s, which provides a highly accurate tolerance requiring minimal if any trimming, filing, drilling or sanding. However, prior to assembly, I still test fitted and trimmed, filed, drilled, sanded, etc. 654
all parts as necessary for smooth movement of moving surfaces, and tight fit for non moving surfaces. Depending on your slicer, printer, printer settings and the colors you chose, more or less trimming, filing, drilling and/or sanding may be required to successfully recreate this model. I carefully filed all edges that contacted the build plate to make absolutely certain that all build plate "ooze" is removed and that all edges are smooth using small jewelers files and plenty of patience to perform this step.
This mechanism also uses threaded assembly, so I used a tap and die set (6mm by 1) if required for thread cleaning.
Step 2: Base Assembly.
To assemble the base, I performed the following steps:
* Soldered 60mm lengths of red and black wire to the motor.
* Pressed the motor into the motor mount on "Base.stl".
* Pressed "Cam.stl" onto the motor shaft.
* Placed "Guide, Yoke.stl" onto the base assembly, then secured in place with two "Bolt, Mount, Motor.stl".
* Positioned "Yoke.stl" into the base assembly.
* Secured "Arm, Right.stl" onto the base assembly using one "Axle, Arm.stl".
* Secured "Arm, Left.stl" onto the base assembly using the remaining "Axle, Arm.stl". 784