Good day all,
I have built the robot and had some fun with it. I’ve did some various tests and I’m running in an issue that the upper motors are terribly weak. The wrist rotation motor needs only a little touch to miss steps and the elbow rotation is the worst as it will sometime jerk with only gravity when turning 45 degrees.
I’ve solved the step loss on the other motors by reducing the acceleration and increasing current a little.
However, I’ve tried everything for those motors. I’ve played with speed and acceleration values. I’ve increased or reduced current values from 10 to 100. I’ve changed the microstepping values and even the low speed optimizations.
I’ve verified with a multi meter that the current being drawn by the slush engine during these operations was enough and it seems there’s not a problem there.
Is anyone else running in these issues and how did you solve them?
Thanks a lot,