Oldham coupler for the TEVO Tarantula
thingiverse
Oldham inspired by the EZGimbal on Thingiverse. The idea is to design an oldham to remove the wobbling effect of the worm with the added bonus of securing the Z axis (the trapezoidal guides allow to disengage the axis if it forces when bringing down). You need to print one "coupler2.stl" (middle part) and two "coupler1.stl" (top and bottom). No supports needed. After sanding (faces in contact must be sanded like a mirror and greased), It seems to work fine for me. See before/after picture... :)
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