thingiverse
UPDATE STEP FILES ADDED 19/09/19
Here is a design by BAXEDM on youtube, you may have seen his video
https://www.youtube.com/watch?v=OuI3vj0prnw&t=1398s
You will need to print three planet gears, one sun gear and one annulus gear.
This assembly is intended to be milled out of aluminium and the standard base can be tedious to work as i printed part.
I have Created a more 3D print friendly base but it is untested.
Direct link to the original creator's page
Click the "View on thingiverse" button above to visit the original model page on thingiverse. You can download the STL file directly from the creator's page for free.
This STL file is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
Yes, this model is available as a free download on thingiverse. Some creators accept tips or donations.
Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original thingiverse page to see if modifications are permitted by the creator.