I only modified the terminal output gear in this remix of a very cool system of planetary gears made by JB86. It was a fast print and resulted in excellent performance and small backlash, although not entirely quiet while operating. I plan to make two more of them when the first system's longevity is found to be satisfactory (with properly greased gears).

This design of the output gear is a work in progress, and the model is only partially parametric, but it can be accessed in OnShape here:
https://cad.onshape.com/documents/647d05f208f0e91757e39830/w/e3466d47a132969d13f573e3/e/9e4a98f4925351b6005de7a5?renderMode=0&uiState=6545d03b8472af06b9951c8e

Flsun

Flsun Super Racer

Yes

Yes

0.32mm

15%

At least 3 walls recommended.