pic: 3729's minibot

[Chris is me]

We oversized our shafts to get the tubing to stick. A ~.275-.28 shaft for 1/4" ID surgical tubing worked great for us.

[JLenhart]

Nice minibot! Looks like it is capable at climbing poles.

My favorite comment about ours when it was getting expected was "Where's the rest of it?"

[LightWaves1636]

Chuck! I PMed you and nice minibot. Nice to see you're still part of a FRC team. (Testa told me what happen with 1583).

[Free Willy]

Originally Posted by Jeffy

It will stay on if:
1. You have enough contact area (>1" has worked for me)
2. The ID of the tubing is the same, or smaller than the OD of the shaft

Chances are it will take some finger strength to get the surgical tubing on without a lubricant. Its what I have been doing for weeks.
Some teams have said they use warm water or rubbing alcohol. For whatever reason we can't get warm water in our building so I haven't been able to try it.

Now that you know, can you explain why the tubing behaves this way?

Thanks Jeffy! We think the tubes were coming off because we tried testing the minibot too soon after we used the rubbing alcohol as a lubricant. Everything is working great now!