Free 

A gear that is compatible with Lego Technic, it is 64 tooth.
Used an involute tooth generator by Robert Conkling for Solidworks. https://grabcad.com/library/robust-involute-spur-gear-generator-solidworks-1
Print instructions
Printed in PETG, supports required because of the little nubs on both sides of the gear.
.15 layer height, 3 perimeters, 20% infill. Highly suggest Elephant Foot compensation.
The three perimeters allows the teeth to be solid, while the body is infill.












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