Also, if you could please vote for this instructalbe in the Microcontroller contest , the Toy contest , and the Make it Move contest it would be highly appreciated ;D
Step 1: Design and Fab
For this project I used the lynxmotion arm as a large point of reference, but because the site does not actually give any CAD files or any dimensions of the older arm I was forced to make those decisions for myself. I used SolidWorks for the design of the whole arm assembly, this made everything go by so smooth since I could save the files as .STL or .Dxf and have a laser-cutter and FDM machine make the parts for me. Besides that the Items I used are:
1x 24x24 sheet of neon green lexan.
5x Hitec HS-422 servos
2x Hitec HS-645MG servos
1x box of 4-20 x 3/8 self tapping screws
1x box of 2-28 x 1/4 self tapping screws
some 8/32 x 1/4 socket cap screws
Check the next step to see what all the parts are used for...