Thingiverse
Planetary Wobble Teeth Gear
par tobiaskornmayer
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Basically a regular planetary or epicyclic gear, but with a novel approach in toothshape. The Background is, that regular 3D printer are working much more precisely when using round instead of sharp edges for a tooth shape. Perhaps even the stress distribution in the teeth is improved, due to the similarity to bones. The gear can easily be modified by changing the parameters of teth on the sun or planetary wheel, the tooth width, the height or the number of planets. Right now the planet holes are setup for regular skate bearings. Design is still untested.
20140309 - Update 1: I noticed some misalignment in the gears, I already fixed that but I wait to upload the next version until I also figured out one misaligned polygon in the turning point between tooth valley and top.
20140309 - Update 2: Okay, the new model is online. Now I fixed the polygon the quick and dirty way. Please make suggestions if you know how to tackle this issue other than adding 0.01mm to the tooth radius.
20140309 - Update 1: I noticed some misalignment in the gears, I already fixed that but I wait to upload the next version until I also figured out one misaligned polygon in the turning point between tooth valley and top.
20140309 - Update 2: Okay, the new model is online. Now I fixed the polygon the quick and dirty way. Please make suggestions if you know how to tackle this issue other than adding 0.01mm to the tooth radius.
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