pic: West Coast Drive: Spokane Style

[s_forbes]

Nice design, that kind of set up has been proven to work tons of times. What kind of guts do you have in the transmissions? Are they completely stock components (minus sideplates), or do some of the shafts/gears need machining?

Originally Posted by AdamHeard

2 CIMs geared for 10fps doesn't seem traction limited (assuming roughtop/wedgetop tread).

It certainly isn't, the traction limit for roughtop or wedgetop drivetrains (2 CIMS) is closer to 6.5 ft/sec for a full weight robot. Still, we ran wedgetop tread on our single speed robot last year at about 11 ft/sec and didn't have any problems. Of course, we didn't have to push anyone either...

Originally Posted by CraigHickman

Actually, after reading over what you said, let's see how many iterations of the West Coast Drive there are out there! If you've got one designed, put the render up on www.tinypic.com and throw it up here!

I made one a little while ago that's similar to yours in that it is just a small single speed drive base, but uses cantilevered dead axles instead of live axles. Not really west coast, but still... Comes in to about the same weight as yours, too, about 35 lbs with chain (says inventor). The transmissions are about as itty bitty as they can be.