Dropout on perimeters, adjusting K factor down helped but not enough
I've been printing in PLA+ on and Ender 3, and have Extrusion Multiplier carefully calibrated, and have temp & retraction adjusted to what works well for this filament.
I am getting these dropouts on corners or thin perimeters, this one is 0.2mm layer height:
It is supposed to be a continuous smooth perimeter, but where the 2nd wall/perimeter ends it drops out. I have recalibrated and dropped my K Factor down to 1.6 which helped a little.
Here is another example with single perimeter and 0.28mm layer height:
I have renamed my 3mf file to .zip and attached.
RE: Dropout on perimeters, adjusting K factor down helped but not enough
Switched to Classic Perimeter generator and it is now perfect!! Guess there is still some work to be done on Arachne...
RE: Dropout on perimeters, adjusting K factor down helped but not enough
Thanks for this! I am having an incredibly frustrating issue printing a simple square box with sides of just 3 perimeters. I'm having drop out at the beginning of EVERY inner and outer perimeter. The old slicer version had an option for 'extra extrusion at beginning of ...' which I was able to adjust as needed to compensate. The current PrusaSlicer does not have that setting any longer from what I can see. I'm switching from Arachne to classic for a test print . . . hope it's successful.
RE: Dropout on perimeters, adjusting K factor down helped but not enough
Best of luck to you. Surprising that something that can cause this significant of printing artifact is rolled out as default
RE: Dropout on perimeters, adjusting K factor down helped but not enough
Significant improvement. Still a small void, not perfect but a huge step in the right direction.