Extruder Moves Too Fast After Firmware Upgrade
I'm wondering if anyone has any suggestions on this issue I'm seeing. I'm running with an i3 MK3 that was upgraded to an i3 MK3S.
I finally decided to upgrade the frimware after probably a few years since the last upgrade to MK3S_MK3S+_FW_3.14.1_MULTILANG.hex.
After doing so, when I try to load filament it attempts to force a ton of it down the nozzle and jams it up. A far too thick excursion will manage to come out the other side but only for a few seconds as it completely jams the filament and it can't even eject properly because the teeth have ripped up the filament and has no grip, I have to manually pull it out carefully and clean up all the debris.
At first I thought maybe the tension needed to be adjusted but still the same issue. I went to settings and manually moved the extruder motor and it seems to be moving way too much for a single step.
I tried downgrading the firmware but the issue persists. Any ideas would be much appreciated.
RE: Extruder Moves Too Fast After Firmware Upgrade
I'm having the exact same problem. MK3s no MMU. Reflashing multiple old firmwares is not resolving the issue. At this point my printer is bricked. It was functioning perfectly until I finally succumb to the reminder after years and updated the firmware
RE: Extruder Moves Too Fast After Firmware Upgrade
UPDATE: prusa3d_fw_MK3_3_12_0_5672.hex from Jan 10 2013 solved the issue for me
RE: Extruder Moves Too Fast After Firmware Upgrade
I have the same problem
RE: Extruder Moves Too Fast After Firmware Upgrade
I can only download the Firmware 3.9.0 May 19, 2020, nothing older. Is there another way to fix that?
RE: Extruder Moves Too Fast After Firmware Upgrade
I had this exact same issue after updating to 3.14.1 - and I found a fix! Factory resetting my MK3S did the trick:
Press and release the reset button marked X and positioned under the control knob on the LCD panel. Immediately press and hold the Control knob until "Factory reset" is displayed on the LCD display (after 2-3 seconds). Depending on your settings, you will also get a sustained beep. Release the control knob and a new menu should appear. And then select ALL DATA.
After that, it fixed my issue. I did have to recalibrate my printer but that's not too bad.