RE: MK4S +MMU3 + 6.40 Alpha FW - Stuck at Reloading Filament - 99% Parking
Mine is mk4, still had the issue. I went back to previous firmware and no issue since.
RE: MK4S +MMU3 + 6.40 Alpha FW - Stuck at Reloading Filament - 99% Parking
I also have the stuck parking issue after updating to 6.4.0. Printing the same object, multiple copies, updated the firmware in between copies 1 and 2. No issues with first copy under old firmware, 6.2.6. First attempt of copy 2 after update got to 48% complete, then decided to reload filament for reasons. Parked, filament reload stuck at 98%. Power cycled printer after 10 minutes of waiting, did not resume print. Second attempt got to about 30% complete, filament reload attempted, parked, reload stuck at 100%. Power cycled after a couple minutes, did not resume print.
Reverted to 6.2.6, completed copies 2 and 3 without incident.
RE: MK4S +MMU3 + 6.40 Alpha FW - Stuck at Reloading Filament - 99% Parking
I love how this issue made it in the final version, even though it had been reported on. They should have at least, mention it as a "known issue".
Had my 8h print stop halfways for whatever reason today.
When i came in to check, i found the printer had cooled down, and i got "Filament widerladen, 100%, Parke" (reloading flilament, 100%, parking" after i restored the heat. The filament was still loaded in the extruder, and there was no reason, why it should had been unloaded in the first place.
Thes same print ran without issues the night before.
Seems like i will have to downgrade my FW.
MK4 +MMU3 (FW6.4.0), print was single colour, PETG from spool 3
RE: MK4S +MMU3 + 6.40 Alpha FW - Stuck at Reloading Filament - 99% Parking
I've got the same issue here, it only happens when I try to start a print with filament already loaded in the nozzle. I was able to get it to work by having it unload the filament and reload it when the "filament already loaded" prompt pops up.
RE: MK4S +MMU3 + 6.40 Alpha FW - Stuck at Reloading Filament - 99% Parking
And it’s still happening… https://forum.prusa3d.com/forum/postid/772875/
MK4S/MMU3
RE: MK4S +MMU3 + 6.40 Alpha FW - Stuck at Reloading Filament - 99% Parking
Same problem here with my MK4+MMU3 using the 6.4.0 STABLE firmware. Very annoying...
RE: MK4S +MMU3 + 6.40 Alpha FW - Stuck at Reloading Filament - 99% Parking
Printer gets stuck with status of 99% Parking.
After starting a print, the temperatures reach preheat, bed leveling executes, extruder heats to temp, extruder produces purge line at the left front of the build plate, then lifts and moves to the right. Sequence halts at the 99% parking state. The only recovery is to RESET.
Anyone seeing this?
Same problem!
Although what I wondered is if anyone also hears the MMU3 stepper trying to pull out the filament from the extruder, but fails to do that? As if the extruder stepper in the Nextruder is not pulling back the filament enough... at least that is what it feels like.
When I make cold pulls with the printer (i though it was a clog at first), the nextruder pulls out enough filament no problem with no clog...
On a side note: I opened up my gearbox and saw the lubricant was quite black and dirty. cleared all that out with IPA, re-calibrated but I see no change in the error or bug. So i think it cannot be that physical problem.
RE: MK4S +MMU3 + 6.40 Alpha FW - Stuck at Reloading Filament - 99% Parking
Today I updated to the stable version. The same problem...