MyMiniFactory
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Epicyclic Planetary Gear Box (37:1 or 49.3:1) NEMA 17, No Hardware.
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I strongly believe that this is the best 3D printable gear configuration. It has very little friction and does not require hardware or bearings to run for a long time at 1000+ RPM. With some of my newer remixes of this, this type of gearbox can be mounted to a NEMA 17 Motor and with more modules and interconnecting ever other sun gear the backlash nearly disappears completely Updates!4/7/14- Video of gearbox driving knee joint on InMoov. Legs 2/27/17- I Included the Fusion 360 Project Files! ;) Don't judge my terrible Component organization skills!1/23/17- Revised the 17 Mount, Added End cap to encapsulate all gears so they can be greased and enclosed, new method for holding end caps together, will elaborate in my next video1/24/17 - Made a small revision to both sides of the capsule. Realized the planet gears need to be phased accordingly and added arrows, see below and picture above.1/27/17- Fixed a Mistake where i uploaded the NEMA 17 mount with the spacer ring as part of it, S
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