Quote:
Originally posted by f22flyboy
unfortunately for our bot, equal spike input does not make equal output at the wheels. We put the 1 joystick drive on, and the bot was uncontrollable. Keep in mind this is our test bot, which is nothing but a piece of plywood with 2 pnuematic off-road scooter tires run by 2 drill motors. It goes maybe 30-40 mph. It was funny when we put the drills in 2nd and took off, only for it to abruptly do a 360, which flung the battery off and about 30 feet away
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If I recall correctly, the drill motors don't run at the same speeds, forwards and backwards. There were three in the kit, last year, two that were regular, spinning a little faster going forward, and one that was either modified or manufactured differently, which spun at the same speed as the other two did forward, in reverse. I'm not sure if this really applies to your situation (I guess I just thought it did), but I thought I'd mention it.
Again, if I recall correctly, speed controllers are called "victors", and relays are called "spikes".