Prusa Core One - Messed up Prints
As the title says I have a Prusa Core One and suddenly some 3D prints are messed up like so:
I am using the normal black Prusament PLA and the Woodfill PLA. Usually, I did not have any trouble printing with those filaments. The models I wanted to print were Moose Ears as well as the Bat Headband.
The bat headband, sent to the printer as-is and not much adjustments have been made aside from using the gyroid infill and settings walls, bottom and top shell to 1mm. For the moose ears, I have tried various settings but the one in the picture was a bit of an adjusted 3mf file.
After the first failed print, I proceeded to re-tune the printer, but since the official app preferred to show 120Hz most of the time, even when I did not strum anything, I used the Carbon Drive App as suggested by someone else.
Unfortunately, the next print was also messed up. I then proceeded to print a simple benchy and this turned out fine in my opinion:
As a test, I switched both the model and the filament to the bat ears and the Prusament Black PLA. However, the very first print was totally messed up (I did not take a picture) and the second print can be seen as the 3rd picture.
What I noticed during the second print was that there was some residue on the nextruder as well. I put it back to take the picture but take the placement with a grain of salt:
My current assumption is that during the first print some PLA was collected by the nextruder and then melted due to the heat.
Now, I am wondering on how I should fix this. Does it make sense to print yet another benchy? Is there anything I need to do after tuning/strumming the belts? Am I just unlucky and those models are messed up? I did open the top grille but I did not have the door open, did it get too hot?
I have cleaned the buildplate with Isopropanol before printing just to make sure. Any suggestions on what is going on?
I have done a couple of successful prints in the past, so for me this happens all of a sudden and is rather new...
RE: Prusa Core One - Messed up Prints
in your last picture there is definitely some material hanging on the silicon sock. It should be removed.
For the strange printing results, please check if you have accidentally enables "avoid crossing perimeters", and in your next test, don't use gyroid and try rectilinear instead. There are/were layer shifting problem tied to the usage of both. Which plate are you using, the default one? Try to also wash it with dishwasher and hot water, and do not leave fingerprints afterward... Isoprop doesn't always cut it...
RE: Prusa Core One - Messed up Prints
It seems like I had bad bed adhesion with the satin sheet. I tried a print with the smooth PEI one that comes by default and everything went swimmingly. It seems I need to clean the satin one with quality dish soap.
RE: Prusa Core One - Messed up Prints
It seems like I had bad bed adhesion with the satin sheet. I tried a print with the smooth PEI one that comes by default and everything went swimmingly. It seems I need to clean the satin one with quality dish soap.
Pick up a BIQU Cryogrip Pro Glacier sheet and you'll rarely need to even clean it. Everything sticks to it except PP (polypropylene) which is expected.
- Bob Marley
RE: Prusa Core One - Messed up Prints
I can confirm that the Cryogrip is a wonder, but I had really good results with the satin too, but if and only if, it is properly and regularly cleaned up. For some of my parts, I had to use 3DLac and similar to avoid warping (PCBLend on long and thin prints).