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General Mach Discussion / Z-Aixis rotates in one direction only with TB6560 driver
« on: November 13, 2016, 08:59:18 AM »
Hello, there are many such problems already reported and the directions listed in those threads did not help. I am not what I am missing. I got the CNC 3 axis running with TB6560 driver board. X-Y runs as expected. Z-axis moves in one direction only.
Check 1: What if wiring may be wrong? - I swapped the Z-axis to Y-Axis and the same wiring works there. So the wiring seems to be not a problem.
CHeck 2: Parallel port low voltage - I ordered the PCI parallel port as my original had a problem. I probed through the pin and the voltage drop is 0 to 5 v.
Check 3: Motor O/P pin config - This config is the standard pins as X (2,3); Y (4,5) and Z (6,7). I played around the active low for step and dir pin but did not help. I would also attach the config xml file in the next post in this thread.
Check 4: Running Z- axis with out load - The stepper motor is Nema-17 and isolated the z-axis from all its attachment and ran it standalone. No improvement.
Check 5: Check for the faulty motor - I used the spare Stepper for another Nema-17 and see no difference.
All these checks were done following the tips given in the other threads. Now I am struck. Please let me know if there is any way that can fix.
Thanks for the help.
Check 1: What if wiring may be wrong? - I swapped the Z-axis to Y-Axis and the same wiring works there. So the wiring seems to be not a problem.
CHeck 2: Parallel port low voltage - I ordered the PCI parallel port as my original had a problem. I probed through the pin and the voltage drop is 0 to 5 v.
Check 3: Motor O/P pin config - This config is the standard pins as X (2,3); Y (4,5) and Z (6,7). I played around the active low for step and dir pin but did not help. I would also attach the config xml file in the next post in this thread.
Check 4: Running Z- axis with out load - The stepper motor is Nema-17 and isolated the z-axis from all its attachment and ran it standalone. No improvement.
Check 5: Check for the faulty motor - I used the spare Stepper for another Nema-17 and see no difference.
All these checks were done following the tips given in the other threads. Now I am struck. Please let me know if there is any way that can fix.
Thanks for the help.