Ok guys, I’m breaking down and posting here to see if anyone has any ideas. I’m greatful for any advice.
I have an upgraded flsun SR. I recently lost my computer (psu issue, waiting for replacement) and I took this opportunity to switch from Cura to Orcaslicer.
Over-all I’m very happy, and getting some good speeds, but I just cannot remove stringing no matter what I try:
- Retraction from 0-7mm. After about 3mm, no further effect
- Retraction speed from 30mm/s-50mm/s. No noticable effect
- Travel speed and acceleration both high (up to 350mm/s and 6000 accel. No effect
- Temp from 205-215 with no effect
- Dried filament and different colours, no effect
- Wipe on retract on and off, up to 2mm wipe distance and 100% retraction. No effect
- Messed with scarf seams on and off, no effect
- No effect from layer heights
My setup:
- Printer - FLSun SR running klipper with a speede pad
- Filament - Esun PLA+
- Upgrades - Deported fans, OMG v2 extruder, volcano hotend and high flow cht nozzle
rambos@lemm.ee 7 months ago
lemann gave some good points. Since you already tried so many things like lower temp than recommended and drying, I guess bowden tube might be loose (there should be no play at all). Or just a bad filament? I know esun is quite popular, but I never tried it.
What size of the nozzle you use? Bigger nozzle = more stringing
It is hard to avoid stringing with PETG, but for PLA it shouldn’t be a problem at all. My bowden extruder with 3 mm retraction has 0 stringing with Polymaker Polyterra PLA. Even with 1 mm stringing is almost gone completely. I found Polymaker much better with stringing than DevilDesign or AzureFilm that I used before.
Rangelus@lemmy.nz 7 months ago
I’ve generally had the best results with it. Ironically, before the upgrades I had almost no stringing.
I’m using a 0.4mm nozzle. I probably should have mentioned in the OP that I didn’t have problems before, but the upgrades have happened in addition to moving to Orcaslicer.
Now I’m worried if I’ve got my Bowden tube seated in the hotend correctly…
rambos@lemm.ee 7 months ago
Just pull/push the tube with your hands. If there is no play you are good, but if there is:
I found original clips too thin, zip ties are much better IMO. It helped me remove stringing completely while using half of the retraction distance (using 0.6 nozzle)