Running chains on zipties

[Phyrxes]

While not ideal I have seen teams use HDPE as well, usually sourced from an old cutting board.

[BrendanB]

Delrin would be ideal but if you don't have any, grab some small diameter PVC and split it down the middle and attach.

[DampRobot]

I saw I team use this at 2011 SVR. I forget what team in particular, but when I asked them about it, they said it ran great and never failed on them. As far as I can remember, it was 35 chain. I've heard of other teams using it without problems as well.

Try it, and it it works, great. If it doesn't, try some of the other suggestions in this thread. There's nothing wrong with experimentation.

[bardd]

Originally Posted by DampRobot

I saw I team use this at 2011 SVR. I forget what team in particular, but when I asked them about it, they said it ran great and never failed on them. As far as I can remember, it was 35 chain. I've heard of other teams using it without problems as well.

Try it, and it it works, great. If it doesn't, try some of the other suggestions in this thread. There's nothing wrong with experimentation.

What's "it"?

[BrendanB]

If you can get a picture of this area, it would be extremely helpful in offering advice!

[bardd]

Originally Posted by BrendanB

If you can get a picture of this area, it would be extremely helpful in offering advice!

I would, but by the time I get to the robot there will be no point asking. You see, our next (and last with this bot) competition will be Wednesday, and we won't get to work on our robot until Tuesday.

[DampRobot]

Originally Posted by bardd

What's "it"?

Tensioning the chains with zip-ties.

[bardd]

Originally Posted by DampRobot

Tensioning the chains with zip-ties.

Oh... Great, thanks.

[rcmolloy]

In which direction does it hit the support? Top or bottom of the chain? Like many other individuals have suggested, delrin would be the best bet for this application.

After doing a bit more further reading, it sounds like it is hitting the bottom. Encompassing the delrin solution, I would personally get a nice uniform 3/8" block of any nominal length and tap for 1/4-20s while fastening from the top of the frame. Also, round the edges on any belt/disc sander to give a nice profile so that way the chain isn't hitting a 90* edge.

If you guys could provide a picture as well, this would help eliminate the problem completely!