Stringing with high flow nozzle - Prints troubleshooting

RE: Stringing with high flow nozzle

mbiasotti — Wed, 21 Jan 2026 21:31:00 +0000

Thank you @hyiger and @Ruebarb - for your advice. I will experiment and try to get it tuned in.

Mark

RE: Stringing with high flow nozzle

Ruebarb — Wed, 21 Jan 2026 20:19:55 +0000

As Hyiger said, nozzle temp 1st. Print a temp tower. Once you have the best temp, then a stringing test file.

I haven't used ASA and I don't use HF nozzles. But I have found for ABS & PETG, PCTG, the default settings for Prusa PETG, in the filament overrides, worked for all 3 of those. I would use that as a starting point to see any improvements. Wipe while retracting for PCTG made the problem worse. For the other 2 it helped alot.

RE: Stringing with high flow nozzle

mbiasotti — Wed, 21 Jan 2026 19:00:51 +0000

@hyiger - Do you have any recommended value/s on increased retraction distance and speed?

RE: Stringing with high flow nozzle

hyiger — Wed, 21 Jan 2026 03:07:04 +0000

That’s usual when switching to a HF nozzle. You can increase retraction distance, retraction speed and maybe lower the nozzle temp 10° or so.

Stringing with high flow nozzle

mbiasotti — Tue, 20 Jan 2026 23:11:42 +0000

I recently switched to a high flow 0.4mm obxidian nozzle on my Core One. Without any changes other than updating my printers and connect settings, I noticed that I'm getting some "stringing" using my default ASA filament that I didn't have before with my standard nozzle.

It kinda makes sense given that the high flow nozzle is moving more material, but would like to correct it if I can in my Prusa slicer settings. Has anyone else experienced this and if so, did you correct it by changing your default setting/s?

Mark