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Stringing with Prusa PET and i3 MK3  

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Andreas
(@andreas)
Eminent Member
Stringing with Prusa PET and i3 MK3

Hi,

I purchased my printer a year ago. However a few month (I'm assuming that it was since firmware 3.6.x, but not sure on that) my printer started to stringing on PETG, I didn't try PLA though.

I attached an image.

I tried to print this: https://www.thingiverse.com/thing:1093904

More details:

  • Printer: i3 MK3
  • Nozzle: Default nozzle coming with the printer
  • Filament: Original Prusa PET (White), not Prusament
  • Slicer: Prusa Slicer 2.0 (latest)
  • Slicer-Profile: Prusa PET, 0.2 Quality
  • Supports: No

Is there anything I can do to improve this?

Thanks, 

Andreas

Attachment removed

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Posted : 08/09/2019 6:02 am
Bunny Science
(@bunny-science)
Noble Member
RE: Stringing with Prusa PET and i3 MK3

Have you dried your filament? No you cannot trust that a spool fresh out of a factory sealed bag is actually dry. PETG gets more stringy as it absorbs moisture.

By drying, I mean heating and keeping PETG at elevated temperature for at least 4 to 8 hours, not just putting into a container with desiccant.

Posted : 08/09/2019 7:05 am
Andreas
(@andreas)
Eminent Member
Topic starter answered:
RE: Stringing with Prusa PET and i3 MK3
Posted by: guy.k2

Have you dried your filament? No you cannot trust that a spool fresh out of a factory sealed bag is actually dry. PETG gets more stringy as it absorbs moisture.

By drying, I mean heating and keeping PETG at elevated temperature for at least 4 to 8 hours, not just putting into a container with desiccant.

Thanks for that hint. I'll try to heat it up and get it try. The spool is open for a while now. What temp. do you recommend for trying?

Thanks a lot!

Download our 3D Print Cost Calculator Tool:
https://andreas-reitberger.de/en/3d-druckkosten-kalkulator/

Posted : 08/09/2019 7:07 am
Bunny Science
(@bunny-science)
Noble Member
RE: Stringing with Prusa PET and i3 MK3

Because the info may help others, I have summarized my drying experiences here.

https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-general-discussion-announcements-and-releases/drying-times-and-temps-in-dehydrator/

 

Posted : 08/09/2019 8:05 am
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