Ok, finished the build on the AR3. Was having issues getting anything to work ,but then realized that I had the motor driver switches backwards (who uses DOWN for ON??!?!)
Anyhow, I'm currently experiencing 2 issues -
1) The motor driver for J6 is slow flashing a red light and I can't get the motor to do anything. I've double checked the wiring visually between the motor and the port on the robot and that all seems correct (splices are correct color-color, and on the right pins of the port), checked the cable (tried swapping out cables), and checked the continuity of the control box port-controller. All looks good. Checked all the other wires going in into the controller and they all seem to be right. Kinda stumped as to what to check next. Any help appreciated. Do I maybe have a bad controller? I guess I could try swapping the configuration with J5 and see if it works or gives the same error...
2) J5 works, but seems to have a TON of slop when changing directions. When I command a 10 degree change in the opposite direction, I don't see any movement at all, but when I then do another 10 in the same direction I see it move properly. If I then command 10 in the opposite direction I see nothing until I do a second 10 in that direction. Any ideas how to remove/adjust this slop out?
3) Which direction is +/- supposed to be for each joint?