Driver not working? Hey, quick troubleshooting question. My prusa i3 Z axis motors are suddenly not working anymore. I did the ramps test and tried attaching other motor to the Z-driver but they wouldn't work either. Should I conclude that the stepper driver is broken or are there other things I should look into? https://reprap.org/forum/read.php?219,443306,443306#msg-443306 Fri, 10 Jul 2026 07:06:56 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?219,443306,443830#msg-443830 Re: Driver not working? https://reprap.org/forum/read.php?219,443306,443830#msg-443830 Pianojungle RAMPS Electronics Mon, 15 Dec 2014 08:38:06 -0500 https://reprap.org/forum/read.php?219,443306,443525#msg-443525 Re: Driver not working? https://reprap.org/forum/read.php?219,443306,443525#msg-443525
I will try rewiring it to the socket of the second extruder and hope that this way I does work. Fingers crossed ;)]]> Pianojungle RAMPS Electronics Sun, 14 Dec 2014 12:07:47 -0500 https://reprap.org/forum/read.php?219,443306,443523#msg-443523 Re: Driver not working? https://reprap.org/forum/read.php?219,443306,443523#msg-443523
You sure haven't changed anything in the setup or in the firmware that could be the reason for the problem?

Is your Z-endstop is working correctly? (M119)

The only thing I can think of trying to circumvent the problem, is to try to use the E1 stepstick socket to see if you can get the Z-axis to work from there. But for this, you'd need to modify pins.h (and rewire the 2 Z-motors to a single connector)...]]> enif RAMPS Electronics Sun, 14 Dec 2014 12:00:53 -0500 https://reprap.org/forum/read.php?219,443306,443515#msg-443515 Re: Driver not working? https://reprap.org/forum/read.php?219,443306,443515#msg-443515 Pianojungle RAMPS Electronics Sun, 14 Dec 2014 11:43:05 -0500 https://reprap.org/forum/read.php?219,443306,443499#msg-443499 Re: Driver not working? https://reprap.org/forum/read.php?219,443306,443499#msg-443499
Have you checked with an Ohm-meter (no power connected to RAMPS!) if the Z-Enable and Z-Step of the Z-stepstick have good connection to the corresponding Mega2560 pins A8 and D46 ?

Also visually check the ceramic base of the trimpot on the stepstick - I had some that were broken apart.]]> enif RAMPS Electronics Sun, 14 Dec 2014 11:03:36 -0500 https://reprap.org/forum/read.php?219,443306,443426#msg-443426 Re: Driver not working? https://reprap.org/forum/read.php?219,443306,443426#msg-443426 Pianojungle RAMPS Electronics Sun, 14 Dec 2014 07:44:11 -0500 https://reprap.org/forum/read.php?219,443306,443423#msg-443423 Re: Driver not working? https://reprap.org/forum/read.php?219,443306,443423#msg-443423
"...not working...": you mean like dead, or do they give any sound when you try to move Z?]]> enif RAMPS Electronics Sun, 14 Dec 2014 07:39:57 -0500 https://reprap.org/forum/read.php?219,443306,443410#msg-443410 Re: Driver not working? https://reprap.org/forum/read.php?219,443306,443410#msg-443410
Edit: I replaced the driver and it is still not working :( ? I'm really out of ideas. This means the problem must be on the board no?]]> Pianojungle RAMPS Electronics Sun, 14 Dec 2014 07:04:00 -0500 https://reprap.org/forum/read.php?219,443306,443378#msg-443378 Re: Driver not working? https://reprap.org/forum/read.php?219,443306,443378#msg-443378 enif RAMPS Electronics Sun, 14 Dec 2014 06:11:30 -0500 https://reprap.org/forum/read.php?219,443306,443328#msg-443328 Re: Driver not working? https://reprap.org/forum/read.php?219,443306,443328#msg-443328
Quote
Pianojungle
Hey,

quick troubleshooting question. My prusa i3 Z axis motors are suddenly not working anymore. I did the ramps test and tried attaching other motor to the Z-driver but they wouldn't work either. Should I conclude that the stepper driver is broken or are there other things I should look into?

Look for a broken wire connection first on your plug. It has happened to me a few times, the wires sometimes come loose.]]> regpye RAMPS Electronics Sat, 13 Dec 2014 22:29:24 -0500 https://reprap.org/forum/read.php?219,443306,443306#msg-443306 Driver not working? https://reprap.org/forum/read.php?219,443306,443306#msg-443306
quick troubleshooting question. My prusa i3 Z axis motors are suddenly not working anymore. I did the ramps test and tried attaching other motor to the Z-driver but they wouldn't work either. Should I conclude that the stepper driver is broken or are there other things I should look into?]]> Pianojungle RAMPS Electronics Sat, 13 Dec 2014 19:54:39 -0500