2 speed gearbox
thingiverse
You'll need 4 screws from basically any toy, 3 bears with an inner diameter of 7mm and an outer diameter of 11mm. You might wanna grab a lighter to melt stuff and mold it.You will need some drill bits, sandpaper, Grease and a knifeI didn't intend for this to be universal and used by everyone so it will be a bit difficult to make.Good luck
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