Has anyone gotten weird results from the mecanum drive?

[TubaMorg]

Have you put it up on blocks and made sure every wheel is powered? Some times you will get these symptoms if every wheel isn't powered for strafe.

[kinganu123]

like i said, it worked perfectly before the 2011 java update
so i know the wheels aren't the problem and neither is the wiring

[TubaMorg]

Troubleshooting often involves checking things that you feel certain cannot be the reason for the malfunction. There are many different ways to develop a troubleshooting plan. Most succesful plans keep in mind Occam's Razor. You are inferring that discovering the malfunction after the update indicates explicit causality, however there may be other reasons for the malfunction that are simple to check first. Among the simplest is to put the robot up on blocks and make sure the correct wheels are turning in the correct direction when given an input. This simple step can, at the very least, eliminate some very probable reasons for the malfunction before you dig deeper. Another easy to check cause is to make sure there isn't some code further down that isn't modifying the code that you showed us.

[drakesword]

Our wierd symptoms included:
robot spinning while driving forward (gyro shorted on frame)
robot swaying like it was dancing (gyro hanging by pwm cable)
robot strafing but nothing else (two motors wired reverse)
robot spinning and strafing but not moving forward (two motors reversed in program)

[unixninja92]

We are having the same problem.
This might fix it, but I have not had a chance to try it yet.

[devodl]

You just described our team's experience for the last week.
This thread explains the cause and solution:
http://www.chiefdelphi.com/forums/sh...ad.php?t=89525
We haven't verified the solution but kudos to team 662 for the cause.