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Strings on the whole bed  

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avd
 avd
(@avd)
Member
Strings on the whole bed

My Mk3s+ printer started stringing a lot (see picture). It happens wit multiple filament also which came just out of the box. I'm also noticing the fillament is a bit curling when it comes out of the nozzle. I already did some cold pulls and the form of the 'filament head' looks oke. Anyone have some tips where to start looking? The picture is with PETG prusament jet black, but as mentioned, it also happens with other filaments like prusament PLA.

This topic was modified 1 year ago by avd
Posted : 21/06/2023 2:49 pm
SailorEric
(@sailoreric)
Estimable Member
RE: Strings on the whole bed

Fresh out of the bag doesn't mean it's not wet. I've had rolls that took several drying cycles right out of the bag. PLA, PETG, PC, ASA, all get run through the dryer first. Then if there's still an issue I know one major item it's not!

Posted : 22/06/2023 2:21 am
René
(@rene-3)
Reputable Member
RE: Strings on the whole bed

If the filament curls as it exits the nozzle,

this indicates that the nozzle exit is dirty or damaged.

Replacing the nozzle would then be a good solution.

Posted : 22/06/2023 5:10 am
avd
 avd
(@avd)
Member
Topic starter answered:
RE: Strings on the whole bed

Thanks for the tips, I now changed the nozzle and ptfe tube, unfortunately the issue is stil there, I also dried the fillament again for 24 hours with silica gel in the dryer. One thing I'm noticing is that the filament keeps flowing a little bit when the nozzle is hot and the printer is in idle mode. I tried to print with 20 degree less but that also doesn't make a difference, does anyone have another idea? 

Posted : 26/06/2023 10:03 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Strings on the whole bed

I had one filament that was awfully stringy, and i went down to 170C.

that caused issues with the cold extrude temperature, which I lowered to 140C so that the extruder would not stop printing

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 27/06/2023 8:56 am
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