Oldham Coupler mod for Proxxon MF70 CNC kit
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Didn't have suitable flex and had trouble aligning the couplers, so modified (re-modelled) for a more forgiving design!
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- Printables
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- Mechanical Parts
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- Creative Commons — Attribution
Was fitting Projunk's Proxxon MF70 CNC conversion kit, but couldn't find a suitable flex for the couplers and/or coudn't get the alignment of the couplers right.
Used the original coupler as a model for creating a split version which allows more misalignment. Probably also causes more play and backlash and might wear out really quickly!
I've gone no further than fitting it (to all 3 axis) and checked that the steppers can move the axis.
Modelled in f360, model included.
edit: I forgot to replicate the notches in the side which were for easier access for the mounting bolts; actually not too tricky to assemble without, because the coupling can be fitted in sections if you've got enough fingers.