-65.46:1 Compound Planetary Gearbox for Coffee Grinder by H9419 3d model
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-65.46:1 Compound Planetary Gearbox for Coffee Grinder by H9419

-65.46:1 Compound Planetary Gearbox for Coffee Grinder by H9419

by Thingiverse
Last crawled date: 3 years, 4 months ago
This solves two issues, the fact that my blender runs too fast to grind coffee and is reversed in direction.
used the 3 ring version. Locked ring 2 and adapted sun gear to my blender, ring 3 is connected my coffee grinder. Ring 1 was left out but the sun gear contact remained. Lubricated with canola oil and let the blender grind out the imperfections. Now it is as smooth as a bearing.
Sun gear snapped at 40% infill, so I switched to 90% but it will still melt/deform without lubrication.
Attached are the files I made for my blender (Proluxury Hand Blender 750w) and my generic hand crank coffee grinder
Edit: Added "V2_Ring_Closures_For_Blender" to replace "Ring_Closures_For_Blender". Doubled the gripping surface and added a locking mechanism that is modeled after one of the proper attachments of the blender.

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