Backwards motor

[Matt Krass]

Be careful with that method, if you push the sticks full forward you (theoretically) get 254, adding anything more than 1 to that will cause it to wrap around to 0 and trigger a high speed reversal, that'll make driving kind of difficult.

You could put a software cap that limits joystick input to 254 - bias, whatever it ends up being, then the slower motor will reach full speed and the faster one won't, but that isn't perfect either. A percentage based bias adjustment, plus a sanity check to prevent wrap around would be a good solution.

[Schneidie]

Originally Posted by paulcd2000

Hi everyone. We just realized that the way our motors are wired, we have one motor going backward when we tell it to go forward. Has anyone else had this problem, and how have they fixed it?

Thanks in advance

You could reverse polarity and then equalize the torque with your code in the computer.

[greencactus3]

Originally Posted by Cody C

What do you mean to mount the motors?
I think that they are most likey allready mounted...
But you never know, huh?

i think he means to change the drivetrain so all drive motors will be running clockwise when the robot is going forwards, and counterclockwise to go back..
prolly'll make a less symetrical robot, distributing the weight unevenly leading to left right bias anyways.. with the CIMs. i wouldnt bother. now if we were gonna use those drill motors again... then id try to match the motor rotation... easier than close looping.