Hi
I am just finishing off modifying my lathe for Mach3 based CNC.
Although it runs, the Z motor runs fine in one direction when I reverse the direction it slows and nearly stalls then runs fine. Each jog in that direction is fine.
When I reverse direction again it stalls then runs fine.
I swapped the motors and they are both fine the fault follows the stepper driver.
Any clues please
Clive