Try swapping the assigned ports in the Movement Panel around. That should do it.

I feel that I am close. It now goes in the general direction. My ports are"

LTA = 13 LTB = 12 RTA =11 RTB = 10

When I hit forward, it goes forward with a slight tilt to the left. When I hit reverse, it goes pretty much reverse. when I hit right, it goes pretty much right. when I hit left, it goes Left.

any ideas?

If I have made two threads on a similar subject, I am sorry. One was getting the machine to have some power to the ports. The OTHER was adjusting the ports. I felt like it was a new thread. Anyway, sorry.

LOL, Mel. Personally I don't see any problems with the other thread. It happens. Don't sweat it.

I'm not sure what you mean about it "pretty much" go in the expected direction. Could you explain what is happening? It almost sounds like the outside wheels aren't turning properly. You may have swap two more ports in the movement panel.

Sorry, this is just a guess. It's been years since I tried using a movement panel. I haven't built a wheeled robot yet and I script all my motor movements. I do remember that I needed to keep reassigning the ports till I had it right though. tired

What I mean by going in that direction sort of is that the wheels go in the general direction but veer off to the right or left slightly.

The robot was working properly before I took it apart. All of the motors where turning properly in the right directions. I have no labels on the wires or from the points I took the wires off of. so it is a guessing game. I have four wire. I know that some go on the Right and some go on the Left. I tried all sorts of settings and the ones I have above worked the best for me. Right now, I am stumped! I can't think of anything I can do to make them work better. :-(

Mel, to make the robot track straight, you'll need to make a custom Movement Panel and add a set() command to trigger the needed enable pins. You will also have to add the 2 signal wires to the enA and enB, and use a PWM command to slow or speed up the faster motor.

Thanks, Maze. That would be AMAZING! could you point me to tutorial on this?

:-)

Go to Rich's tutorial to the"Alternative wiring for a simpler method" portion. synthiam.com/Tutorials/UserTutorials/130/1

It is very simple to wire. Simply remove the jumpers(little plastic things) on the pins behind the "In" lines(if you have them, mine didn't)

Then take 2 more jumper cables. Attach one to each of the En pins(EnA and EnB), connect the other ends to the signal pins on the ez-b. Done!

Once done that report back and I'll help you with the custom movement panel.

Thank You! I'm not sure that I have extra jumpers, but I will see.