Mecanum Question about strafing.

[SeafordVikingR]

Thank you all for the responses. We did attempt to play with the gyro, but with no success. However! We realized that the wheels weren't moving in the right direction when they were strafing. What we had were the 2 front wheels moving in the same direction and and the 2 back wheels moving in the opposite direction. What we really needed were the opposite wheels, top left & bottom right, to be moving in the same direction. So when we figured that out all we did was switch the pwms in labview and now it strafes beautifully!

[dellagd]

Originally Posted by SeafordVikingR

Thank you all for the responses. We did attempt to play with the gyro, but with no success. However! We realized that the wheels weren't moving in the right direction when they were strafing. What we had were the 2 front wheels moving in the same direction and and the 2 back wheels moving in the opposite direction. What we really needed were the opposite wheels, top left & bottom right, to be moving in the same direction. So when we figured that out all we did was switch the pwms in labview and now it strafes beautifully!

Just curious, did you have the wheels incorrectly selected in the code? (For example, Front right and Back right were swapped in the code)

[SeafordVikingR]

See the thing is, the defaulted mecanum code had each motor set to a pwm already, but that's also where the problem was for us. A simple switch of the pwms in the code fixed it up nicely, though.

[TheBassett]

Well make sure the rollers on the wheels form an "X" in the center(Front right and Back left rollers should make an invisible line with each other and FL/BR should also line up. Ex: http://robosavvy.com/store/images/ne.../10009_03.jpg). We had some really weird things happen, that sounds similar to what you have, when one wheel was put on backwards.

Hope this helps!