update:i guess the youtube one was abandoned because the belts slipped too much when they got wet, and the ebay plans work off the same drive so that wouldn't work. Anybody got any ideas for an alternate drive system that will allow turning? 2 motors has potential but you would have trouble with them running at the same speed when going in a strait line. An open diff with brakes on the axle has worked for some but if you get into some trouble then you only have power to one track. Any other ideas? Think a simple cover over the belts would prevent them from becoming wet or is there any way to prevent them from slipping once wet? I guess it would kind of work like the belt tensioners on a snow blower also and I believe they just have them well protected to prevent them from slipping.
