Strange Stringing issue (MK3S)
Hi guys,
I'm struggling with this strong stringing issue when printing with PET (Prusa PET). See the following picture:
It happens only in the inside of the objects and the strings are really thick. The walls are quite nice otherwise. I also notice with same print that the gear teeth facing back to the printer (closer to the power supply) had and issue on the angle climb but it was OK for the rest of them:
Here you can see better the transition as the print worsens:
I think that these issues are somehow related but when I try the belt tension it looks OK. I tried to make sure that all bolts are tightened as well (including the gear in extruder).
I'm grateful for any idea what could remedy this issue.
Thank you,
Matej.
RE: Strange Stringing issue (MK3S)
I noticed one bearing to be a bit lose on right side of the heat bed. So I fix that and the print improve a bit - I also upgraded to 3.9 and try Prusament PETG but the issue with gear teeth is still noticeable on the the back sides of the prints. It will manifest more if there are more items on the bed in Y direction in a line. Maybe it could be print cooling related?