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Parametric modeling

A project log for Strain Wave Gear with Timing Belts

Strain wave or harmonic drive gears are cool. As a cheap analog for metal or flex filament splined cup, try using timing belts.

Ken KaiserKen Kaiser 02/15/2017 at 01:411 Comment

Have your design parametrically generated for you. Belt, bearings, export STL to print, and assemble with hardware.

The model still needs some debugging, and set space for mounting hardware.

I didn't make this a more collaborative design, because I wasn't sure l could actually contribute anything. There are juggernauts of talent, having years of specialized training or 30 years of experience (or both) in a field, which is awesome but intimidating. I am pleased with how it turned out, but I don't imagine that it can't be vastly improved, so an obvious comment to you might make a huge difference to me and this project. As well, I am an example that anyone can contribute to this project so please do, join and contribute.

The model is not finished. I am going to break out specific posts in the coming days, specifically on the design of the tooth gears and the center wave generator. What is known so far, what are the trade offs, and what can be worked on in the future, keep up to date with this project if it interests you.

Link to the model you can also search public documents for 'strain wave gear' and copy from there. https://cad.onshape.com/documents/589ec3b62ec4e50f8780f313/w/e3bc2d0aadf1fac7a95c44f8/e/b461997c4947a96f94b88547

Discussions

Simon Merrett wrote 02/19/2017 at 07:38 point

Ken, what an awesome contribution to the project - thank you so much! 

I think this is going to help a lot more people try this approach,  to see if it can be developed to be useful for their application. 

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