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Unread 25-05-2013, 13:17
MichaelBick MichaelBick is offline
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Re: Center to Center with belts

Quote:
Originally Posted by Mk.32 View Post
Thanks Really happy with this drive.

What I meant in my post was I CNC milled the bearing holes in the rails so that the C-C distance was a really tight tolerance. (I would think 1/32 off would be to much).

However I did machine my own pulleys, more info: http://www.chiefdelphi.com/media/photos/38380
In short just a tiny (3/32th) square endmill + 3/8 alum plate + cnc. The pulley cad was downloaded from SDPSI and I used just my regular CAM software to come up with the tool path.

We did not have any issues with skipping and ratcheting. And the people that have seen me drive can vouch we pushed the drive as hard as we could, with doing all the above. Also to test I pretty much rammed into a test wall and stalled the motors and the belts still didn't ratchet.
What were your robot dimensions(in case we go back to 28x38 next year)
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