Quote:
Originally Posted by eagle33199
We made our own mecanum wheels for Breakaway (although we ended up only using those on the practice bot - we used AndyMark wheels on the real one). The rollers were done on a 3D printer, and probably would only need to be done once. Since those obviously wouldn't have much grip, we got some tubing of some sort (I really don't remember what, something grippy) and stretched it over the rollers. That makes it easily replaceable if need be - you can take the rollers off, cut off the old tubing, and put new tubing on, all without needing to make new rollers. If you want to make it real easy, make 2 complete sets of rollers at the start - you can have one on the robot, the second set off and ready to go. Then if you need to switch them, it's a rather quick process, and then you can take your time putting tubing on the worn out set until you need to switch them again.
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On our minibot, we stretched surgical tubing around otherwise slick tubing for increased grip. However, for a mecanum bot, we are worried that the tubing would slip if wrapped around a mecanum roller.
Did you have issues with the tubing slipping on your robot?
Unfortunately, I don't think we have the capability to manufacture our own rollers in this way (since we'd need to decrease the diameter while keeping a very specific shape), but I can ask about it if wear does end up being a problem.
Thanks for the help.