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#11
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Re: Overpass rigidity?
We actually made our full track completely out of PVC (trying to save some money & weight), but when we stood it up it sagged, so we bought some cheaper and lighter electrical conduit 1" diameter to brace the insides. Before putting it in the overpass (with all the pieces glued & or pinned) it seems to hold together pretty well. We ran the robot into it a few times, bounced the trackball against it and several other abusive actions, and it seemed to stay together, so it seems to be a reasonable modification to the design.
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