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Originally Posted by Joe Johnson
I am going from memory, but I believe they the soft rubber cross hatch stuff came out best at 1.3 or something like that.
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In my experience, 1.2 - 1.5 is a common value for the traction of most FIRST robots.
I measured the wedgetop (we call it "60 tread") at about 1.2-1.3. That stuff is great, except that it has relatively poor wear characteristics compared with other materials of comparable traction. If you use it, be prepared to swap out your wheels once or twice a regional.
Joe,
I've just recently been "enlightened" to the virtue of mountainboard wheels.
(
http://www.chiefdelphi.com/forums/sh...ad.php?t=22844)
I'm thinking of using them this year, game permitting. It's good to hear they have your endorsement, especially concerning traction and wear.
We found that the pneumatic skyway wheels have similar characteristics, however those (especially the 6" ones) are a little harder to put a hub on that these appear to be.
Thanks for sharing,
John