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Unread 16-02-2002, 17:18
GregT GregT is offline
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Quote:
Originally posted by ianmackenzie
I've gone through the same discussion (about the motors fighting each other) with my team numerous times, and I'm quite certain that they don't - and the more load you apply, the less likely it is that the motors will fight each other. Obviously, all the motors are going the same direction, so the only way they could fight each other would be if one was actually being pushed by the others faster than it "wanted" to go. Therefore, if a motor is going less than its free speed (where it "wants" to be), it is not being fought against. Under even a little bit of load, none of the motors are approaching their free speed , so they are all contributing driving force. Perhaps some are contributing a little more than others, but that's really not a problem. My only initial worry was that we could flip the main 60A breaker with six very powerful motors driving at once, but we have tested quite rigorously and never once done it.

-Ian Mackenzie

I disagree, forcing a motor to go faster then it wants to takes work, i've had this disscussion with transmission engneers. My team's robot will have 4 drive motors (if we finish the drill mounts) and we were VERY careful to mechanically match the rpm's. We will still have to fine tune them with electronics.

I think the more motors the better, but any more then 6 would be overkill. It's not worth the fuse's and speed controlers (not to mention you run out of motors to put in there).

Greg
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