I was having some printing problems with PLA silk when the nozzle was clogging at random times. I cleared the nozzle using a cold pull after using the needle only provided a temporary solution. I was still having problem with low extrusion and decided to calibrate the filament I was using ( eSun PLA+) and ended up with a flow rate of 1.029 and a pressure advance of .084 using the line method and a inconclusive pattern using the angled line pattern, they all looked good. I had Flow calibration unticked in the print options on all the tests. I’m using Orcaslicer 2.2.0 . Is this a valid PA number or do I still have a problem with my nozzle. Up until now it’s printed flawlessly with ABS ASA and PLA both silk and +.
I’m using a X1C and print with the door open or closed as required although it’s +30 degC here ATM with about 70 % humidity, My filament is in the AMS and is dry with a meter reading of 1 and 8% on a humidity sensor.
0.84 ?? Usually the value should be between 0.01 and 0.04.
Silk can be a pain though to properly calibrate.
The flow ratio defines the overall amount of extruded filament per set distance.
The PA value define how much more or LESS has to be extruded for corners, thin walls and such.
If the test patterns are inconclusive a simple infill test can help.
Print a test cube with just a single wall and no infill - observe how the corners print.
Getting a gap and missing bits means the PA value is too high.
Bulging and a growing mess in the corners indicate the value is too low.
Once that is a half decent fit you can print the cube again and very thin to check how the solid infill is printed.
Gaps between the lines indicate the too high PA value, build up along the wall indicate the value is too low.
Of course this only give usable results if the flow ratio is calibrated properly.
Sorry that should have been 0.084 not 0.84.