Failed print and unable to print anything nicely afterwards
Hello, yesterday I wanted to finish the last two parts for the Prusa Lack enclosure. The print was at 70% completion, when all of a sudden strands of filament started to bunch up around the nozzle and next to the print (see first picture). Tried to pause the print and remove the filament, but it didn't want to stick to the print anymore. I then stopped the print and tried to clean the nozzle and heater block as good as I could using a copper brush.
I'm not sure what caused this failed print, but I'm suspecting it's caused by the nozzle grinding on the infill, thus causing filament bunching up around the block. Today, I tried to print an extrusion multiplier calibration cube using the official gcode file ( https://help.prusa3d.com/l/en/article/d9j1xdg7vj-extrusion-multiplier-calibration ), but this failed miserably (see second picture). I already tried unloading and reloading the filament, as I was also all of a sudden having first layer issues. The reloading seemed to improve the first layer, but now the second layer seems to be underextruding.
This problem is pretty frustrating as I was really hoping to be able to build and finish the enclosure this weekend. Any ideas and suggestions are really appreciated!
Re: Failed print and unable to print anything nicely afterwards
What fillament you use? Looks like you have inconsistend extrudion (sometimes less fillament go out of nozzle).
First:
Check you boundtech, try to tight it up pritn.
Next:
Try to use different fillament on different print.
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University: MK2S upgraded to MK3 with MMU2.0
Home: MK3
Materials: ABS; ASA; PETG; PET; PLA; Nylon; Nylon Carbon; CPE;
SW: Freecad 0.18; Slicer PE And still generating more troubles than whole forum together.
Re: Failed print and unable to print anything nicely afterwards
Looks like a clogged nozzle to me.
Coiple of cold pulls and you should be back in business!
Re: Failed print and unable to print anything nicely afterwards
One thing to consider in addition to the partial clog procedures may be to dry out your filament... I am in a high humidity area and find that drying the filament helps with stringing that happens later in the prints, especially PETG but also PLA for some reason. Do not know what your humidity situation is, but it could contribute to the issue.
It looked like a very nice print right up until the issue happened. I also had little 'String" things on the upper part of the prints when I was printing my enclosure in PETG, but not like that. Regardless, given that your model looked good up until then, it seems to be a setting issue and not a mechanical issue.
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