Mecanum gearbox issues

[Mark Sheridan]

Originally Posted by efoote868

This is a common issue, which is why teams will use encoder feedback to vary motor outputs in a control loop, to get each wheel turning at the desired speed set point.

Its actually better to get gyro feedback. You don't need encoder feedback unless it auto. A control loop on each wheel is possible but overkill. The WPI library code for mecanum has a gyro input. the library code is very good, I have lost a wheel before and the robot still drove reasonably well.

RichardNixon, is the speed difference something you noticed driving on a bench or is your robot having trouble driving on the ground. Is it having trouble going straight? Is it rotating too much when your translating?