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Unread 23-03-2009, 16:57
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FRC #0418 (Purple Haze)
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Re: pic: Team 973 2009 Robot - RAPTOR

Quote:
Originally Posted by Cory View Post
The rollers we made in 06 were out of thick wall PVC tube, so they had the bore through the middle already and we only had to bore an inch or two out larger at the end.

The problem with them was that PVC is extremely heavy, and each roller would have weighed around 7-8 lbs. We ended up having to get a shop to remake them out of ABS for the weight savings.

It's possible to drill a 1" through hole in the roller, if you drilled from both sides with a series of varying length drills, but that's obviously not an ideal solution.
but then how were the ABS roller's bores made then? it seems a long bore like that would be almost impossible in a flexible material like ABS
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