Semi-Planetary Ring Gear Reverser Widget

thingiverse

I designed a unique gear system as a hobby project, which essentially functions as a planetary gear set minus the central sun gear. When held stationary, the two outer ring gears rotate in opposite directions. I carefully calculated and created the gears from scratch, making adjustments until I achieved the correct ring gear diameters to prevent seizing. The two housing components fit together via a press fit, although it was quite tight for my printer - it's possible that this may vary depending on the specific printer used. If you print one, please post your results and share your thoughts on how well it fits together!