Quote:
Originally Posted by philso
Do the grey rollers at the front spin backwards to slow down or stop the totes? Are the white rollers passive? Am I correct in thinking that the whole upper structure is attached to the chassis using 8 bolts?
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The white rollers are passive (they could have been replaced with a plastic sheet, but that's what we started with, and it worked so we kept them). The black rollers spin forward, just slow enough to brake the totes and then drop them nicely in front of the bumper - they were a late addition, but they work pretty well!
You are right that the superstructure pieces connect to the base with just a few bolts through 1/4 inch panel nuts (with washers to adjust heights). It isn't the lightest way to build a robot, but the modularity let us get some mechanism built while the others were still being worked out, and makes repairs easier.
Thanks for your interest!