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Re: Drive Train Gearboxes
For FRC applications I would be very surprised in 1/2-thousandths tolerance was required... frankly I would stunned if any OTS gearboxes were near that tolerance.
I've heard of teams water-jetting gearbox plates and carefully using a deburring tool to get the bearing holes to the right size. You could also water jet the plates and ream the bearing holes to a final size. There are many other fabrication methods proven to work in FIRST, include good old-fashion milling.
Remind your machinist(s) that the gearbox needs to last a matter of hours/days, not decades.
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Maturity is knowing you were an idiot, common sense is trying to not be an idiot, wisdom is knowing that you will still be an idiot.
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