Mark 3 firmware update problems
Hello,
I effectively bricked my Mark 3 when I updated the firmware from 3.10 to 3.14.1 . I had just finished a successful print, so the machine was in good working order, when I decided to update the firmware via PrusaSlicer 2.9.1 . The update showed as successful on both the slicer and the Mk 3 display. The printer requested to run the setup wizard and that's when the issues started. The X axis moved fully to the left and repeatedly banged into the stop. It then retraced to the right for a total of about 100mm then went fully left and gave me a "Check Axis Length" error. I've tried downgrading the firmware back to 3.10 and even earlier versions. I've also tried upgrading back to the last functional firmware and back to the current but can't resolve the "Axis Length" error. I tried calibration and stopped after the Z axis continuously pounded the plater. Any ideas on how to resolve this? I do have a spare board that has never been formatted if that's a help.
Thanks in advance,
Bob
RE: Mark 3 firmware update problems
Try cleaning and lubricating the Smooth rods., check the idler bearing runs smoothly (I have had them fail... Yes it would be unfortunate if this coincided with new firmware... perhaps pursa have reduced the motor current, or increased the sensitivity... )
the Mk3 uses sensorless homing.
if it see's too much resistance to movement, it thinks it had hit the end of travel
regards
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE:
Would be great if you can describe the whole process of X axis calibration. Did this happen during XYZ calibration. I far as I know, the separate X calibration does not exist.
The video shot would help as well.
Prusaslicer upgrade does not have any impact on the printer calibration. The calibration is a part of the printer FW.
even an old man can learn new things 🙂
Standard I3 mk3s, MMU2S, Prusa Enclosure, Fusion 360, PrusaSlicer, Windows 10
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RE: Mark 3 firmware update problems
Hello, I've (hopefully) attached a brief vid. I cleaned and lubed all rails with lithium grease. The Y felt a little crunchy before cleaning but moves freely now (with the printer OFF). The X was as smooth as the Y is now and is unchanged after the cleaning and lube. I did not move the Z by hand. The vid shows what happens at power ON. Firmware 3.14.1 the it goes into the finish setup routine. I mentioned using the calibration feature. That was done by ignoring the setup routine and the result was a similar situation. The nozzle bottomed out on the platter (or possibly the PINDA kicked in but I couldn't be sure) and repeatedly banged into the limit like the X axis does.
Thanks again for any help in resolving this.
Bob