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Unread 30-01-2015, 12:06
Andrew Duerner Andrew Duerner is offline
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FRC #5818
 
Join Date: May 2013
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Re: Problems with 20/20

If your talking about the standard 1 inch profile, I have seen a thickness change also. The gearbox we make is designed with a snug fit that slides into the channel of the 80/20. This is sized to channel ordered from McMaster about 3 months ago. Some channel that was ordered from McMaster about 9 months ago shows a visible difference in the thickness of the extrusions. I haven't measured it but I think your about right on the change, about .010" - .020" decrease in thickness on the newer channel. One question, with thinner channel, why would your slide not work, besides being a little loose?
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Andrew Duerner
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Mentor FRC1717 2012-2013
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