Auto-centering shaft coupler

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Auto-centering shaft coupler

Release status: Experimental

IMG 20101201 175405.jpg
This should reduce Z motor movement when moving the Prusa leadscrews
CAD Models
External Link

This is my attempt at reducing z motor oscillation. Instead of a single clamp this shaft coupler uses two parts which zip tie together, centering each shafts into 2 triangular slots on either side of it.

I've yet to finish my Prusa to really test this out but from initial testing this looks to give a decent improvement over the original coupler in terms of wobble-reduction without any major reduction in axial holding force.