1

Greetings,

After switching filaments and re-leveling, my printer has decided to no longer home in on the x and y axis. If I position them to home, they only move one direction (opposite of their stop switches). I’ve tried the common troubleshooting tips such as turning on and off the printer and unplugging/re-plugging the motors back, but the problems still persist.

I have run out of simple fix ideas and am curious if anyone else has had an issue similar to this and would share some suggestions to solving this problem, I thank you in advance.

3 Likes
2

Are you able to manually step the motors through the printers control interface? Not homing them, just stepping them along the axes. It sounds like a possible firmware corruption, but I don’t know enough about any possible changes made to your printer to draw that conclusion. Are you able to feed it one of the sample stl files from as card to see if it will print with virgin gcode?

3

my apologies, I have the MP maker select v2

4

I attempted both your suggestions and unfortunately I cannot manually step them. I attempted a sample print as well and it begins to print but stops when, I’m guessing, it is trying to go in the problem direction.

5

Which printer is it?

6

First, try homing and triggering the endstop manually before it crashes, (be prepared to cut power if it doesn’t work) if it does work then it means your configs been messed up in the printer firmware (it thinks it needs to turn the motor the opposite direction to get to ‘home’) so, try a firmware reset or ‘load eeprom’ if your printer has it

7

I’m feeling like it might be the Melzi board itself, or the firmware has somehow become corrupted. Considering the history of that rig so far, I’m erring towards the board itself (Probably one of the stepper drivers). Hopefully it’s something easier though!

8

thanks for the feedback. I think after few days of troubleshooting it is indeed the board.