Experimental Harmonic Drive Reducer - 3D Printed

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Over the last few weeks I've been investigating 3D printed Cycloid Drives. I thought it was time to take a look at a Strain Wave, or Harmonic Drive reducer. I'm using TPU for the flex-spline in this design, and the rest is PLA. I'm using the same brushless motor and the reducer is a 10:1 ratio to match the cycloidal drive so we can compare them.

CAD for this: https://github.com/XRobots/CycloidalDrive/tree/main/StrainWave

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Below you can also find a lot of the typical tools, equipment and supplies used in my projects:

Filament from: https://www.3dfuel.com/
Lulzbot 3D Printers: http://bit.ly/2Sj6nil
Lincoln Electric Welder: https://bit.ly/2Rqhqos
CNC Router: https://bit.ly/2QdsNjt
Ryobi Tools: http://bit.ly/2RhArcD
Axminster Micro Lathe: http://bit.ly/2Sj6eeN
3D Printer Filament: http://bit.ly/2PdcdUu
Soldering Iron: http://bit.ly/2DrNWDR
Vectric CNC Software: http://bit.ly/2zxpZqv

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Former toy designer, current YouTube maker and general robotics, electrical and mechanical engineer, I’m a fan of doing it yourself and innovation by trial and error. My channel is where I share some of my useful and not-so-useful inventions, designs and maker advice. Iron Man is my go-to cosplay, and 3D printing can solve most issues - broken bolts, missing parts, world hunger, you name it.

XRobots is the community around my content where you can get in touch, share tips and advice, and more build FAQs, schematics and designs are also available.
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