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Re: Extruder not working

Posted: Sun May 26, 2019 3:52 am
by Fab
My Prusa i3 Pro B's extruder stopped working.

I tested the motor and cable on another slot, they work.
I swapped the A4988 with another one, it works.

So the problem comes from the board.

I moved the cable as well as the A4988 to the unused 4th slot. I swapped the three pin numbers (E*_STEP_PIN, E*_DIR_PIN, E*_ENABLE_PIN) under "Ultimaker Pin Assignment" in pins.h, then flashed the firmware.

It still doesn't work.

Any ideas?
Thank you

Re: Extruder not working

Posted: Mon May 27, 2019 9:17 am
by William

Re: Extruder not working

Posted: Fri Jan 03, 2020 11:24 pm
by smokon
Hello everyone! :) I have a prusa i3 pro B mk8, I have the same problem as other users who write, after several tests I understood that the problem (probably) is in the firmware, I updated the Marlin.ino firmware with arduino 1.0.1 as recommended, but my machine continues to have 3mm of filament setting when I need it to be set to 1.75mm. How can I changing that parameter? thank you very much.

Re: Extruder not working

Posted: Sat Jan 04, 2020 10:14 am
by William
:D Hi, You can change it in the consumable diameter setting of the sectioning software.