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Unread 12-03-2009, 08:38
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FRC #0330 (Beachbots)
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Re: pic: BeachBot Pseudo-Crab drive, partially assembled

Quote:
Originally Posted by The Lucas View Post
How are you controlling it? (I'd probably use a standard arcade joystick and the x axis of a second joystick to set the angle to rotate the drive base)

Great job as always, cant wait to see how it handles on the crater with a trailer, I bet you could have the best "spin auto" in the game. Too bad I didnt get to see it in person at, guess I'll have to wait for Champs!
We tried many different methods of controlling it, and what you described is what we ended up with, except using a steering wheel instead of a standard joystick. We also tried a joystick with a Z axis, and several methods of trying to keep the trailer stationary while turning the base, but never got those fully tweaked. If we ever turn into a defensive robot, we might bring one of those back, since it makes driving really easy, as long as you don't have to keeep the front aligned.

We do have a spin auto mode, but didn't have enough regolith to fully test it. It's not that huge of an advantage though for a spin auto mode. We can make the robot spin around the trailer very easy, but that leaves the trailer in one place to get filled up. For actually moving the trailer, we're not any better then a normal robot. We have other plans for auto, though, so I'm not sure we'll ever use it.
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