Overextrusion at infill, underextrusion at the perimiter
Hello,
I am trying to get my ASA CF working but keep failing for some reason. I am using a CHC Pro with a TC 0,6mm nozzle and I am using elcos printing profiles (https://github.com/elcojacobs/superslicer-config), who has the same setup but uses an orbiter 2.0 instead of my LGX. As a result I lowered the retraction speed to 40mm/s - everything else is identical (including the PA of 0.02)
However, I keep getting overextrusion at the infill with his EM of 93,5%. The attached cubes have 93.5%, 92.5%, 91.5% and 90.5% EM. At 90.5% the infill starts looking good, but then the perimeters show signs of underextrusion (gaps between them).
I would be very greatful for any suggestions. Drying the filament at 70°C for 24h has not really improved things.
![No description](https://cdn.answeroverflow.com/1075094807740952696/20230214_163909.png)
![No description](https://cdn.answeroverflow.com/1075094808198135890/20230214_163913.png)
![No description](https://cdn.answeroverflow.com/1075094808579821640/image.png)
7 Replies
equal-aqua•2y ago
![No description](https://cdn.answeroverflow.com/1075095758711312394/20230214_164553.png)
equal-aqua•2y ago
GitHub
Print-Tuning-Guide/small_infill_areas_overextruded.md at main · And...
Contribute to AndrewEllis93/Print-Tuning-Guide development by creating an account on GitHub.
equal-aqua•2y ago
I just stumbled across this. Maybe it will help, going to try it tomorrow
Check your pressure advance which my be too high
equal-aqua•2y ago
Thank you, I calibrated it and it is fairly low: 0.02
did that sort the issue ?
equal-aqua•2y ago
It was already like that. However, a key problem was overextrusion due to the dense layer setting
Dialing the Bridgeflow down to 30% solved that issue
Or not using the dense layer at all