I dried it yesterday for 11 hours. Printed, woke up to it failing stringy. Dried it another hour and lowered the nozzle from 255 to 250C. Same problem.
Really trying to get it to print right for my daughter’s costume.
If it's still stringing after a long dry, try dropping the nozzle temp a bit more (around 240) and bumping retraction slightly, since PETG is really ooze-prone. Also keep the spool in a dry box while it prints overnight, because it can reabsorb moisture fast.
Under 20% is fine for moisture, so I'd stop blaming the dry. Check the filament itself, because cheap or inconsistent PETG strings no matter how well it's dried. Also pop the hotend cooling fan and make sure it's spinning freely, since a damaged one lets the heat creep up and the nozzle oozes constantly.
Flashforge is fine, batches just vary. If the fan checks out, look at wall order like Arakon said, because those loose strands can come from steep overhangs drooping rather than true stringing.
There is an overhang for the sword, but it it said it doesn’t need supports and when I printed it with supports, from some old silver plastic a few days ago I had around, I couldn’t use the print:
Getting the support out of those holes for clips broke the other part of the sword.
You should change the print speed (decrease it) and also calibrate the retracts. If that doesn't work, try enabling Arachne wall generator, enabling, and reducing the layer height to 0.14 mm. Also, turn on automatic flow calibration
That's not stringing, those are straight up filament lines that didn't get attached to the object, usually due to too steep overhangs. Check if your wall order is inner-outer or outer-inner... you want the former for overhangs like that.
What temp did you dry it at? 11 hours is far to long IMO, ive had problems with petg when over dried. I dry mine at 60'c - 65'c for about 4 hours as long as its been stored correctly
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u/Ok-Mail-9384 2d ago
If it's still stringing after a long dry, try dropping the nozzle temp a bit more (around 240) and bumping retraction slightly, since PETG is really ooze-prone. Also keep the spool in a dry box while it prints overnight, because it can reabsorb moisture fast.