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Unread 05-14-2015, 10:50 PM
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SteveGarward SteveGarward is offline
Red 5, standing by...
AKA: 7 years already
FRC #0111 (WildStang), FRC #3132 (Thunder Down Under)
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Join Date: Dec 2009
Rookie Year: 2010
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Re: Experience with 3D Printed Gears

We were going to do this exactly for our winch position pot this year, but we ran out of space for it and found a different way to mount the pot instead.

Most filaments will have a stated shrinkage amount (or you can try some and work it out), and most readily available ABS I've come across is about 3%. If you use a slicer that will let you scale the model, you can bump it up a small percentage, if you need to for your filament, without altering your model.

I've found that the Form Futura EasyFil ABS pretty much didn't shrink at all, and didn't warp during the print as most ABS gears I've printed have.

Viability: They should be fine - little to no load on it shouldn't wear it down. We had a 3D printed winch pulley for our lift this year, which stood up to a lot of (ab)use with not much wear.
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