Non-marking wheels

[Ari423]

Originally Posted by sanddrag

Grey Colson wheels are non-marking.

While Colsons are non-marking, the OP was asking for non-marking omni wheels, and I don't think Colsons would perform very well as omni wheels except maybe on extremely slippery floors at low speeds (to avoid them warming up and getting gummy).

[pilleya]

If you are looking for a good quality Omni-wheel that is non-marking you could try some of these:

http://www.rotacaster.com.au/shop/12...ble---r2/index

They are 125mm in diameter and you will need to either machine or 3D print your own hub depending on your application.

They are designed to be non-marking as they primarily used for handcarts and conveyors, they come in two different durometers 85 and 95A so don't have a huge amount of grip but should be very durable in your application.

[tickspe15]

Originally Posted by Ari423

While Colsons are non-marking, the OP was asking for non-marking omni wheels, and I don't think Colsons would perform very well as omni wheels except maybe on extremely slippery floors at low speeds (to avoid them warming up and getting gummy).

Ringmaster from the last season of battlebots used wheels that appear similar to colsons in an unconventional kiwi setup. While it probably wouldn't work on carpet i'm assuming your marking problems are on a low friction surface like a gymnasium so it could work.

It's also safe to assume that ringmaster was using motors considerably more powerful than CIMS and that their side by side omni setup would result in more friction so you'll have to test it for yourself.

Ringmaster:
http://battlebots.com/robot/the-ringmaster/

[JesseK]

You know what wheels don't mark up the floor? Wheels that can be cleaned up after using a mop/bucket, small towel + windex, or any other number of cleaner/wipes/etc.

You never know, the students on the team may bond over how quickly they can clean up the marks when school admin is walking down the hallway. What the school doesn't know won't hurt them

[arc25565]

Thank you everyone for your input and advice. The current ones we are using are rather old but I believe we got them from andymark and are 6" diameter. They do not sell them any more but they look like the image that I linked below. The only difference is that the rollers were a light brown color. The Durometer of the rollers seemed pretty low. Thanks again for everyone's help. We do not want to have to worry about marking up floors when driving around our school or if we are at a PR event