Ok, maybe you can help me with this one? Using ramps 1.4 with A4988 drivers from this kit here. Was showing my wife how laser smooth the x axis was operating, and a few hours later... it just stopped working. Y works fine and X now just does nothing (I can move the motor by hand even when it's powered up) Here's what I've tested so far: Plugged the X motor into the Y slot on ramps (X motor works fine) Plugged the Y stepper driver (working fine) into the X driver slot (X motor gets an initial buzz, but doesn't move the motor) Plugged X stepper driver into Y driver slot (X driver seems dead as Y does nothing) So does this mean there might be something wrong with the X driver slots on the Ramps board? If so, how would I test that? I did send the X axis crashing into the side once when I was setting up the homing distances. Could this have fried a stepper driver or something? https://reprap.org/forum/read.php?4,339483,339483#msg-339483 Fri, 14 Aug 2026 12:12:02 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?4,339483,349827#msg-349827 https://reprap.org/forum/read.php?4,339483,349827#msg-349827
Cheers.]]> cfry999 Reprappers Sat, 03 May 2014 19:13:23 -0400 https://reprap.org/forum/read.php?4,339483,349501#msg-349501 https://reprap.org/forum/read.php?4,339483,349501#msg-349501
The X sounds like the enable line...

Anyway.. Ramps has a spare pololo socket. phisicaly move you dead axis to that.
Then edit your pins.h

I would try moving X to e1 on the board with a dead X
find [github.com]
change
#define X_STEP_PIN 54
#define X_DIR_PIN 55
#define X_ENABLE_PIN 38

to

#define X_STEP_PIN 36
#define X_DIR_PIN 34
#define X_ENABLE_PIN 30

save, compile and upload. problem bypassed (cross fingers)]]> Dust Reprappers Sat, 03 May 2014 05:25:40 -0400 https://reprap.org/forum/read.php?4,339483,349453#msg-349453 https://reprap.org/forum/read.php?4,339483,349453#msg-349453
This couldn't be a ramps issue I don't think since the x and Z both work on at least one of the megas.

Any ideas?

The x moves a tiny bit when the power goes on and must be getting power to the motor bc I can't move the motor with my hands. However, it's not responsive to the move commands.]]> cfry999 Reprappers Sat, 03 May 2014 01:34:33 -0400 https://reprap.org/forum/read.php?4,339483,349428#msg-349428 https://reprap.org/forum/read.php?4,339483,349428#msg-349428
Then I bought the Funduino and had everything working fine again (all axis and new drivers). Then all of a sudden Z stops working. Again, Z stepper driver fried and other working steppers and motors don't work when on the Z axis.

So to recap:

all motors work
Arduino+ramps 1.4 X axis doesn't work with any motors or steppers
Funduino+ramps 1.4 (same ramps board as above) Z axis doesn't work with any motors or steppers
Power only comes on when 12V power supply and usb are plugged in (for both Arduino+ramps and Funduino+ramps)
LCD does turn on when USB only is plugged but ramps obviously gets no power then ( for both Arduino+ramps and Funduino+ramps)

I tested each analog and PWM pin on the Funduino with a blink/potentiometer sketch and all the pins are working for that sketch.


Could all this be the 12v regulators burnt out for both boards? How could I test if it's the regulator?

edit: Also, I have replaced the 4004 diode on the ramps already and it didn't seem to get the current flowing to the arduino. (as per this post [forums.reprap.org])]]> cfry999 Reprappers Fri, 02 May 2014 22:23:13 -0400 https://reprap.org/forum/read.php?4,339483,348613#msg-348613 https://reprap.org/forum/read.php?4,339483,348613#msg-348613
Need to take a step back.

So at the moment, you had all the motors functioning with the funduino and not the z is not working?

Could be a heating issue. I think I need more info to make a more educated guess.

On the Funduino, take off each driver and start to test them one at a time individually. Then start to add more then one driver then test, then add another, then test.

Try also, testing each driver on one axis, and then on each axis. I know it's tedious work, do I ever know it is.]]> f.larsen Reprappers Thu, 01 May 2014 11:23:43 -0400 https://reprap.org/forum/read.php?4,339483,348602#msg-348602 https://reprap.org/forum/read.php?4,339483,348602#msg-348602 cfry999 Reprappers Thu, 01 May 2014 11:03:26 -0400 https://reprap.org/forum/read.php?4,339483,348596#msg-348596 https://reprap.org/forum/read.php?4,339483,348596#msg-348596 f.larsen Reprappers Thu, 01 May 2014 10:58:17 -0400 https://reprap.org/forum/read.php?4,339483,348127#msg-348127 https://reprap.org/forum/read.php?4,339483,348127#msg-348127 cfry999 Reprappers Wed, 30 Apr 2014 15:26:58 -0400 https://reprap.org/forum/read.php?4,339483,344341#msg-344341 https://reprap.org/forum/read.php?4,339483,344341#msg-344341
Man, these electronics are starting to get me discouraged.

thanks all for your input]]> cfry999 Reprappers Thu, 24 Apr 2014 02:32:55 -0400 https://reprap.org/forum/read.php?4,339483,341232#msg-341232 https://reprap.org/forum/read.php?4,339483,341232#msg-341232 gunnd14 Reprappers Thu, 17 Apr 2014 10:51:16 -0400 https://reprap.org/forum/read.php?4,339483,341228#msg-341228 https://reprap.org/forum/read.php?4,339483,341228#msg-341228 gunnd14 Reprappers Thu, 17 Apr 2014 10:47:39 -0400 https://reprap.org/forum/read.php?4,339483,340980#msg-340980 https://reprap.org/forum/read.php?4,339483,340980#msg-340980
Did you unplugged any device while the printer was on?

Did you get any message in the pronterface console?]]> dewasa Reprappers Wed, 16 Apr 2014 18:13:16 -0400 https://reprap.org/forum/read.php?4,339483,340005#msg-340005 https://reprap.org/forum/read.php?4,339483,340005#msg-340005
Cheers,]]> cfry999 Reprappers Mon, 14 Apr 2014 22:51:11 -0400 https://reprap.org/forum/read.php?4,339483,339930#msg-339930 https://reprap.org/forum/read.php?4,339483,339930#msg-339930
Well, if it was just the X driver, then the Y driver pluged into the X slot would have worked but it didn't.

Did the problem started right after the X axis crash? For electronics, either it dies during the crash or it survives, I don't think you can have problem afterwards. But what about the mecanics? Can you move the X-axis by yourself? Is there a chance it got stuck for some reason?

Another option would be the endstop. If the printer thinks that the endstop is pushed, then it is not going to move further. You can check the status of your endstop with this gcode:
[reprap.org]

Good luck :)]]> dewasa Reprappers Mon, 14 Apr 2014 18:43:34 -0400 https://reprap.org/forum/read.php?4,339483,339496#msg-339496 https://reprap.org/forum/read.php?4,339483,339496#msg-339496
Frame is pretty solid.]]> cfry999 Reprappers Mon, 14 Apr 2014 02:17:45 -0400 https://reprap.org/forum/read.php?4,339483,339483#msg-339483 https://reprap.org/forum/read.php?4,339483,339483#msg-339483
Using ramps 1.4 with A4988 drivers from this kit here.

Was showing my wife how laser smooth the x axis was operating, and a few hours later... it just stopped working. Y works fine and X now just does nothing (I can move the motor by hand even when it's powered up)


Here's what I've tested so far:

Plugged the X motor into the Y slot on ramps (X motor works fine)
Plugged the Y stepper driver (working fine) into the X driver slot (X motor gets an initial buzz, but doesn't move the motor)
Plugged X stepper driver into Y driver slot (X driver seems dead as Y does nothing)


So does this mean there might be something wrong with the X driver slots on the Ramps board? If so, how would I test that?

I did send the X axis crashing into the side once when I was setting up the homing distances. Could this have fried a stepper driver or something?]]> cfry999 Reprappers Mon, 14 Apr 2014 00:23:15 -0400