Loved to see how the planetary gear system works in this 6-speed automatic transmission. Took a total of 25 hrs to print all the parts. I run my prusa clone at 25mm/s max. My first attempt to assymble I ended up with the carrier backwards, where by the idler and small planet gears were in opposite orientation. Turning the crank was very stiff, and some gear changes didn't work. Realized my mistake and fixed the problem also added small amount of White Lithim Grease to the round pin holes. Now cranking is very smooth and can change all the gears.
Great design! thanks emmett! Fun to build. Demands a pretty well tuned printer I would add.
RepRap Guru with custom upgrades
Black, red, white, and blue