flashback to my first iteration

A project log for 3D Printed Strain Wave Gear

printed - using only PETg, no flex filament needed integrated NEMA17 stepper motor only three small parts for tolerance compensation

Johannes HasslerJohannes Hassler 04/10/2018 at 19:090 Comments

This video shows my first iteration of a 3D printed strain wave gear:

It had some disadvantages:

The sliding surfaces were milled out of aluminium that worked fine, but my goal is to have a design that was only printed and assembled without additional labor.

The ball bearing on the wave generator was to small and caused to much wear and tear on the flex spline

The shaft coupling bent the wave generator, resulting in unwanted backlash due to too much play.