Thumbwheel M3 with scale 001 mm with grip Nut on bottom
Free     Thingiverse     jamesarm97

Thumbwheel M3 with scale 0.01 mm with grip (Nut on bottom)

I modified the original to move the M3 nut trap to the bottom so the thumbscrew could be mounted on the bottom of the assembly my printer Duplicator I3 has the screws going through the hotbed then through the Y plate then the nuts on the ...

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