Resuming Print Issues After Filament Change on Prusa MK4S
’m experiencing a small issue with my Prusa MK4S (without MMU) when printing in dual color by changing the filament during the print. I primarily work with PLA and PETG.
To change the filament, I integrate an M600 code at the layer height where I want this to occur in my slicer, OrcaSlicer. The machine stops at the designated layer, beeps for me to come, and I change the filament. After a purge, it asks me if the color is correct. Generally, everything goes smoothly in 99.9% of the cases.
However, I've noticed that when the print resumes, a small droplet of PLA forms at the end of the nozzle while the head is stopped. When the nozzle touches the piece to resume printing, it leaves a small blob, which is really annoying.
Do you have any suggestions on how to avoid this little problem? Any help or advice would be greatly appreciated!
Best regards,
RE: Resuming Print Issues After Filament Change on Prusa MK4S
Filament retraction setting on the resume maybe?
RE: Resuming Print Issues After Filament Change on Prusa MK4S
After cleaning, carefully grab the extruded filament in your fingers (do not tear it off yet). After the nozzle returns to the place on the model where the printing will continue, tear it off just before touching the nozzle.
RE: Resuming Print Issues After Filament Change on Prusa MK4S
Filament retraction setting on the resume maybe?
What parameter should I adjust to resolve the issue? The retracting without changing filament seems to work well. I'm concerned that if I modify the general settings, it might significantly disrupt everything else.
After cleaning, carefully grab the extruded filament in your fingers (do not tear it off yet). After the nozzle returns to the place on the model where the printing will continue, tear it off just before touching the nozzle.
That's exactly what I’m doing right now. But the DIY/MacGyver solution on a €1000 machine isn’t serious... I believe we can do better, right ?
RE: Resuming Print Issues After Filament Change on Prusa MK4S
Unfortunately I don’t have a solution.
I came here with the same question and found a thread from 2024 describing the exact same issue. Seems like nothing has been improved since then. 🙁
I am using Core One+
link to same topic
RE: Resuming Print Issues After Filament Change on Prusa MK4S
Thank you for answer : It's a shame, considering how much it costs... 🙁
Unfortunately I don’t have a solution.
I came here with the same question and found a thread from 2024 describing the exact same issue. Seems like nothing has been improved since then. 🙁
I am using Core One+
link to same topic
Excuse my ignorance but : Would it be possible to integrate a custom Gcode with the M600 to incorporate a slight retraction? (How much?) Or wipe the nozzle on the plate before resuming printing? (As in the procedure for starting a print on the test print area?) Or something like that? If someone have an idea...