MK4S and MMU3 Issues
Hi All,
Wondering if anyone can help me with this "weird" error I experience at random intervals.
My system is a MK3 upgraded with a MMU3 (bought assembled) and has only started doing this since installing the MMU3.
Bios on the printer and the MMU3 are both the latest versions.
System will work fine for 3 to 4 prints (sometimes longer) and then after doing its bed levelling, will load requested filament (in my case PETG)
then do the nozzle purge line.
This is where things go wrong, the print head will raise and park itself in the front right corner with a message of reloading filament, and that's it
nothing else will happen. As have no menu options available to me the only way out is to reset printer, unload the nozzle as I get error messages of incorrect filament loaded or invalid GCode if I try to restart my print.
RE: MK4S and MMU3 Issues
Sounds like the Finda sensor (on the mmu) needs to be lowered just a bit.
MK4S/MMU3
RE: MK4S and MMU3 Issues
Thankyou, however, after some further research have found other users experiencing the same issue.
Their fix was to revert back to the 6.2.6 version of the BIOS, have done this and this error has no longer occurred (30-40 prints since changing).
So, unfortunately, it looks like a bug in the newer BIOS version?
RE: MK4S and MMU3 Issues
This issue has been reported by many on GitHub, where developers can act on it. https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/4862
I personally saw this 3 times in 5 prints a few weeks ago. Since then, dozens of prints without one occurrence. YMMV!
Prusa MK4 since Jan 2024, Printables: @MikeB_1505898