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Astro Physicist Guy
(@astro-physicist-guy)
Membre
what is causing this stringing?

I recently had my i3 Mark 3S serviced after 3,800 hrs of print time.  since then I'm getting this spider webbing, stringing on all my prints when it never happened before.  Don't know that the servicing necessarily caused this as I don't know if they tweaked any settings?  This happens using both PLA and PETG.  Thx!

Publié : 11/03/2024 10:21 pm
Nimitz
(@nimitz)
Trusted Member
RE: what is causing this stringing?

Any ideas?

Publié : 15/03/2024 12:11 am
Diem
 Diem
(@diem)
Illustrious Member

Dry your filament.  Reprint. Show us the result and if the issues remain save your project as a .3mf file

Files > Save Project as

Zip the .3mf and post it here. It will contain both your part and your settings for us to diagnose.

Cheerio,

Publié : 15/03/2024 8:30 am
Astro Physicist Guy
(@astro-physicist-guy)
Membre
Topic starter answered:
RE: what is causing this stringing?

print was the first one of a brand new roll of hatchbox PLA that I just opened. attached is the .3mf file

mandible zip

Publié : 15/03/2024 5:58 pm
Zappes
(@zappes)
Reputable Member
RE: what is causing this stringing?

So far, I only had two situations in which PLA caused stringing like this - one was with wet filament and one when I accidentally printed PLA with PETG settings, i.e. much too hot. Could it be that you somehow damaged the hotend thermistor or part cooling fan during your maintenance?

I would also push the filament spool through a drying cycle, even if it was brand new. Sometimes even new filament spools can be wet - the wet filament situation I mentioned was such a case.

My models on Printables
Publié : 16/03/2024 11:28 am
Diem
 Diem
(@diem)
Illustrious Member

Have you printed this part before?

There is nothing obviously wrong with your settings 'though I would use cubic fill and snug or organic supports and I see no advantage in 0.15 layers, you may as well use 0.2mm - and I would try support on the print-bed only...

But this part is not designed for 3D printing, all the lower curves will print poorly and I cannot find an orientation which will reduce the problem.  If you have access to the design files flatten the base and chamfer the edges instead of filletting.  Otherwise 'cut' the part into quarters, print and assemble post-printing.

I repeat, dry your filament.

Cheerio,

Publié : 16/03/2024 5:03 pm
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