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Originally Posted by Nuttyman54
this is exactly what we did. every loop of chain has at least one sliding component. kjhobin of Team 555 alerted me that 80/20 does not recommend this method, as the t-nuts are liable to loosen and slide, but we haven't had this problem yet. Another option would be to add a tensioner sprocket to the t-slot and just slide that.
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The nuts will almost definitely loosen themselves, everywhere on the robot (but particularly your wheels). We had this problem quite often in 2003 with all the robot on robot contact.
As long as you check your wheels and other critical structural members somewhat regularly, you should be fine.