A small grip to prevent hand cramps while grinding lighter roasted coffee with the Timemore C3. The little wing should keep the grinder from turning in your hand (so you don't have to squeeze as hard).

Should also fit the C2, possibly other (non-slim) models as well. If the diameter is 51.5mm, you should be alright.

Left-handed? Consider mirroring the design in your slicer before printing.

Mounting hardware:

• M3x12 hex screw (anywhere from 10-15mm should be alright)
• M3 nut (goes on the inside)

Beware: using a screw for clamping on to the grinder body can damage the coating. I included a little plug that goes between the grinder body and the screw if you want to lower this risk.

Depending on your printer tolerances you may want to scale up the design by .1 or .2%

I printed mine in PLA (eSun etwinkling black) at .2mm layer height with a .4mm nozzle.

Update: Added an optional version with looser tolerances (51.8mm inner diameter instead of 51.6 in the original version).