petg only sticks to 2 of 5 nozzles
Before I start doing things I should hold off on (only have use of one arm currently.) I thought I would ask the community. All of a sudden petg is sticking to nozzles heads 2 and 3 only? I have a few hundred hours on the printer. 95% using petg. Nozzles are very clean before each print. Not adhesion issue. Filament is dried before use. Issue appears with and without purge block/tower. Alternate brands and colours make no difference. First thing that comes to mind is re calibrate. Hesitation as it is a pain at the best of times but worse with one arm. Any other thoughts.
thanks
RE: petg only sticks to 2 of 5 nozzles
How do you clean your nozzles? I use a brass brush and after awhile I think small micro scratches make filament stick more than when the nozzles are new. Plus PETG is notorious for sticking to the nozzles anyways. I print 95% PETG and cleaning the nozzle before the start of every print is just normal.
Maybe take some photos of the buildup and I can tell you if it's similar to what I usually see. It rarely causes any issues with the print, but can cause issues when doing the bed mesh of is not cleaned off before bed probing.
RE: petg only sticks to 2 of 5 nozzles
I will take some pictures on the next print. Oddly enough I have printed 90% of the petg on nozzle 1 (2 and three are slight colour accent use) The issue happens even on Prusa filaments. I do use bass brushes though I do on all 5. I have tried the same print and moved to all the side of the print bed with the same results. It seems to be more so on white and red filaments (prusa) As well it just started doing that last week. all nozzles were replaced 1-2 months ago from .6 to .4.
RE: petg only sticks to 2 of 5 nozzles
I have gotten rid of any buildup on my nozzles (it's an MK4, though) by applying a bit of silicone oil - here's a forum post about that.
RE: petg only sticks to 2 of 5 nozzles
Could you share your method for cleaning nozzles? I've been using a brass brush, but over time, I've noticed that it might be causing small scratches that make filament stick more, especially with PETG. Since I primarily print PETG, nozzle cleaning before each print has become routine. I'd be interested in seeing some photos of the buildup to compare with what I typically encounter. While it doesn't usually affect print quality, it can cause problems during bed meshing if not cleaned beforehand.