Aside from the mechanical innovations, this thing is mainly printed plastic.

3D Printing
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Aside from the mechanical innovations, this thing is mainly printed plastic. No metal rails, no linear bearings. Nice work @Nicholas_Seward !

Originally shared by Nicholas Seward

Wally is a speed demon. I am not sure how fast he is moving. I will put the inverse kinematics in next week.
https://www.youtube.com/watch?v=TriGIQPAmcg&feature=youtube_gdata_player

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great dubstep track

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I like it! very cool work. To scale up though you might need a 3rd or 4th arm for support.

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@Mike_Ashcraft The Wally design probably isn’t the best choice for large scale. However, Nicholas’ other design, Simpson, should have real possibilities for a big printer.