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Unread 01-06-2013, 21:48
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Mk.32 Mk.32 is offline
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AKA: Mark
FRC #2485 (W.A.R. Lords)
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Re: Laser Cutter And FRC

Quote:
Originally Posted by Cory View Post
It's not actually lighter, but it is basically identical.

The Delrin was a pretty big PITA. It was more difficult to hold tolerances on the bearing bores, the bearings could come unpressed more easily, and it flexed a bit. If you wanted to thread one plate to avoid the use of nuts when screwing the gearbox together, you had to use PEM nuts, which students can easily strip if not being careful. We much prefer aluminum.
I have tapped delrin for light duty threads, where they not sufficient to hold the gearbox together?
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