by ngoodger, published
Youtube link: http://youtu.be/m3w0liy-QJE
3d printed planetary gear with gear bearings connecting the carrier to the gear planets. This allows (potentially) for reduced frictional losses in comparison to sleeve bearing.
The gear ratio is written on the using HarlanDMii Write library http://www.thingiverse.com/thing:16193
Print the carrier and the planetary gear separately and assemble.
The included gear.stl uses a 0.15mm tolerance which may or may not enough for your printer. It can be adjusted in the openscad source file.
Material: 1.75mm Blue and red PLA from Colorfabb
Number of loops: 2
Layer thickness: 0.2mm
Extrusion width: 0.5mm
Extrusion temperature: 195deg
Bed temperature: 50deg
Perimeter speed: 20mm/s
Solid infill: 30mm/s
Sparse infill: 50mm/s
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Planetary gear by ngoodger is licensed under the Creative Commons - Attribution - Share Alike license.
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