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Unread 04-29-2015, 12:54 AM
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Re: Urethane Drive Wheel Questions

A few years back team 118 made wheels that looked very close to these. They seemed to go through the wheels quickly but that may have been because of the hub material being plastic not aluminum.
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Unread 04-29-2015, 12:58 AM
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Re: Urethane Drive Wheel Questions

Quote:
Originally Posted by mcnabb2936 View Post
A few years back team 118 made wheels that looked very close to these. They seemed to go through the wheels quickly but that may have been because of the hub material being plastic not aluminum.
IIRC, that was just the wheel itself that was custom made, I think they still used tread as the traction surface.

Edit: Never mind, I think they actually did make wheels like that...wonder why they stopped, probably something to do with durability maybe. They look pretty cool though in the videos.
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Last edited by Abhishek R : 04-29-2015 at 01:02 AM.
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Unread 04-29-2015, 01:03 AM
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Re: Urethane Drive Wheel Questions

https://ccisdrobonauts.org/uploads/f...a3593a1679.png

This is the bot I'm talking about.
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Unread 04-29-2015, 01:04 AM
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Re: Urethane Drive Wheel Questions

We used 30a urethane for our intake wheels. We didn't do any scientific testing but we compared them anecdotally with fresh Vex colsons on carpet and if anything the colsons were grippier on carpet. After testing a number of durometer samples 30a is as low as I would go for any function. The urethane also tends to get covered in tread dust that significantly lowers traction.

They worked excellently as intake wheels though and we definitely plan on using them in the future for other functions.
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