Huge Rotary Axis
thingiverse
This gear design, created at Robots and Dinosaurs hackerspace to showcase laser cutter and 3D printer capabilities, features module 2 gears. The internal spur has 80 teeth while the pinion gear boasts 12. These parts are from Lee Valey Engineering (part number 12K6809) at $33.45 with shipping costs included. The motor used is a YG2738 gearhead model from Jaycar, specifically the 160RPM version; however, other options are available as well.
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