the reflector assembly. Here, auxiliary fittings weekends, tops. Your are added: A top cleat best bet is, first, to read (the long board) provides through the following a place to fasten other pages to get a feel for the pieces of the reflector scope of the project. As frame. Two bracket cleats you read through the (the identical short step-by-step procedures, boards) help support the you'll find numerous water tank in a later step. terms in italics, such And the center cleat (the as tank support triangular board) will and bracket involute help hold the reflector The italics center cleat. reflector subassembly is center support in place. mean that these complete, it's enclosed in specialized () a simple but sturdy Photo Five After the framework of 2 X 4s. cleats are added, Truss plates (the worker the reflector side boards is nailing one in place), are nailed to Photo Three joist hangers, and The the plywood patterns, mirrorlike Mylar should plumber's straps help forming the be handled carefully and reinforce the frame's rectangular assembly protected with joints, making sure it shown, on the newspapers to avoid safely can carry the full floor. The workers are scratches. Here, one of 500-plus-pound weight setting a "V" the plywood involute of the filled water tank. shaped assembly of patterns is about to be hardboard sheets used as a template to cut and a 2 X 2-inch, center out a section of the support into the Mylar. Each component points of the involute of the reflector should be pattern's cusps. fitted with its own In the next step, the individually cut piece of hardboard sheets Mylar to allow for slight will be bent downward to differences in size and follow the shape. curves of the involute patterns, finishing the reflector subassembly. parts are clearly shown firmly tape the wire's Illustration B Drawing in illustration A, and that loose end to the tank. The Involute And Cusp you should turn to that Next, as shown in Photo
weekends, tops. Your best bet is, first, to read through the following pages to get a feel for the scope of the project. As you read through the step-by-step procedures, you'll find numerous terms in italics, such as tank support bracket and involute center cleat. The italics mean that these specialized () Photo Three The mirrorlike Mylar should be handled carefully and protected with newspapers to avoid scratches. Here, one of the plywood involute patterns is about to be used as a template to cut out a section of the Mylar. Each component of the reflector should be fitted with its own individually cut piece of Mylar to allow for slight differences in size and shape. reflector subassembly is complete, it's enclosed in a simple but sturdy framework of 2 X 4s. Truss plates (the worker is nailing one in place), joist hangers, and plumber's straps help reinforce the frame's joints, making sure it safely can carry the full 500-plus-pound weight of the filled water tank. the reflector assembly. Here, auxiliary fittings are added: A top cleat (the long board) provides a place to fasten other pieces of the reflector frame. Two bracket cleats (the identical short boards) help support the water tank in a later step. And the center cleat (the triangular board) will help hold the reflector center support in place. Photo Five After the cleats are added, the reflector side boards are nailed to the plywood patterns, forming the rectangular assembly shown, on the floor. The workers are setting a "V" shaped assembly of hardboard sheets and a 2 X 2-inch, center support into the points of the involute pattern's cusps. In the next step, the hardboard sheets will be bent downward to follow the curves of the involute patterns, finishing the reflector subassembly. parts are clearly shown in illustration A, and that you should turn to that firmly tape the wire's loose end to the tank. Next, as shown in Photo Illustration B Drawing The Involute And Cusp