Hi all,
I'm working with a custom built delta using a RAMPS 1.4 board.
The printer has been working fine for about 18 months but I recently decided to upgrade the extruder.
While doing this I adjusted the voltage on the extruder stepper driver (change in stepper motor). The extruder works fine.
After doing this, one of the Y axis stepper motor stopped working.
Any time I try to issue a move command, it shudders and vibrates in place but does not rotate.
I've tried the following:
Confirmed that the vref voltage is correct is the same for all steppers (.8V).
Replaced the cable between the RAMPS and the affected stepper. --> NO CHANGE so cable should be good.
swapped the X and Y stepper wires around. --> problem follows the RAMPS output, so the stepper motor should be good.
Swapped the stepper drivers between X and Y axis --> problem follows RAMPS output not the stepper driver.
From the above, I therefore must have an issue with the RAMPS board rather than anything plugged into it?
Is there any other test I should do or anything else to check? If it is the RAMPS board, is it possible to reconfigure the board or the firmware to use the spare stepper driver socket to control the Y axis? (My printer only uses 4 stepper motors)
The only change I made in the firmware was the steps per mm setting for the extruder, but I did this in the EPROM rather then recompiling the firmware.
I'm using the repetier firmware if that makes any difference, but I'm pretty sure this must be a hardware problem.
Thanks for any suggestions.
Lapo
I'm working with a custom built delta using a RAMPS 1.4 board.
The printer has been working fine for about 18 months but I recently decided to upgrade the extruder.
While doing this I adjusted the voltage on the extruder stepper driver (change in stepper motor). The extruder works fine.
After doing this, one of the Y axis stepper motor stopped working.
Any time I try to issue a move command, it shudders and vibrates in place but does not rotate.
I've tried the following:
Confirmed that the vref voltage is correct is the same for all steppers (.8V).
Replaced the cable between the RAMPS and the affected stepper. --> NO CHANGE so cable should be good.
swapped the X and Y stepper wires around. --> problem follows the RAMPS output, so the stepper motor should be good.
Swapped the stepper drivers between X and Y axis --> problem follows RAMPS output not the stepper driver.
From the above, I therefore must have an issue with the RAMPS board rather than anything plugged into it?
Is there any other test I should do or anything else to check? If it is the RAMPS board, is it possible to reconfigure the board or the firmware to use the spare stepper driver socket to control the Y axis? (My printer only uses 4 stepper motors)
The only change I made in the firmware was the steps per mm setting for the extruder, but I did this in the EPROM rather then recompiling the firmware.
I'm using the repetier firmware if that makes any difference, but I'm pretty sure this must be a hardware problem.
Thanks for any suggestions.
Lapo