strain-wave-gearing

Here are 2 public repositories matching this topic...

robrotics / hd20

A 3D-printable 20:1 harmonic drive actuator for any NEMA 17 stepper. Tested to 3.3 N.m, about $4 of hardware. Free CAD, full BOM, and the load-cell data behind the numbers.

robotics open-hardware cad stepper-motor 3d-printing actuator gearbox nema17 harmonic-drive strain-wave-gearing

Updated Sep 20, 2026

Zigizmund1996 / GeometryCalculationVPTK

Star

Wave gear with intermediate rolling elements (VPTK/BWG) sizing calculator: enter 2 of 4 params (ratio, diameter, torque) and get full geometry + DXF export. Python, NiceGUI.

python calculator cad mechanical-engineering dxf gearbox gearbox-design nicegui mechanical-engineering-cad harmonic-drive strain-wave-gearing wave-gear rolling-elements

Updated Oct 11, 2026
Python

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