Replacement Pinion Gear for RC Wheely Truck
thingiverse
I'm replacing the gear with ABS, printing it 15 tooth, 16mm in diameter. The original didn't last long, so I'm getting a new kit for about $10. I designed this on Sketchup, adding more thickness since there's plenty of space in the gearbox cavity. This one will be much stronger and should last longer. Printing it costs less than $1 to make about 10 of them. Don't look at the battery pack yet - it's a mess! I just strung together some Li-ion 18650's I had lying around, replacing the original 7.2V NiCd pack. Now I can play until I get bored instead of stopping when the batteries run low.
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