not totally sure but looks as though my x is jumping. See included pix what you see is how it is on the bed of the printer. I can hear a jump but have not been able to actually see the jump. What would be the best approach to solve this problem.
This may have several causes.
Axis carriage not running free and easy.
Pulleys not tight on the motor axes.
Belts too loose and thus slipping on the pulleys.
Belts too tight thus causing the motor to loose steps.
Stepper drivers not set correctly thus motor losing steps. (the steppers should be set to 0.55V not 0.425v as the manual says)
Thanks, well i found the x belt we tight think so loosened it a bit, and the major jumping is gone. still have a minor jump as in the object is sued some about 1mm off to the left as looking at from of printer.
did you already set the stepper drivers to 0.55v?