Small Lego wheel to 3mm shaft adapter
thingiverse
This is an adapter to allow use of the small 3/4" (20mm) Lego wheels with typical micro motors (micro gear motor, fingertech, anything with 3mm shaft) Includes hole for tapping for a 6-32 set screw. Rubber tire just slips over top and sets in place with center groove. Print Settings Resolution: .2 layer height Infill: 100% (95%)
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