Good Morning All. First prints are not clean, and I really don't want to tear down the hot end....
 
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Good Morning All. First prints are not clean, and I really don't want to tear down the hot end....  

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willbauly
(@willbauly)
Active Member
Good Morning All. First prints are not clean, and I really don't want to tear down the hot end....

Morning all. 

I finished a Mini build yesterday. From kit, not semi.

The initial tree frog with the supplied azure prusament was bad. Lots of whispy stringing.

I then fired up Prusaslicer and sliced a tower so I could fiddle with flow/temps on the fly (0.2, quality presets, turned OFF z-hop). There was no combination that was OK. The tower is awful, whisps and blobby strings. I have and Ender3 without any mods at all and it prints great with the same filament.

Should I adjust retraction settings in Prusaslicer. I assumed the presets would be good to go. Should I do an esteps calibration? I assumed Prusas don't need this level of intervention, but if they do, I will do it.

Any other tips?

Posted : 01/10/2022 11:02 am
Diem
 Diem
(@diem)
Famed Member

Picture?  Is this new, dry, filament?

Cheerio,

Posted : 01/10/2022 4:57 pm
willbauly
(@willbauly)
Active Member
Topic starter answered:
RE: Good Morning All. First prints are not clean, and I really don't want to tear down the hot end....

Hello Diem,

Thank you for your reply but I think I have it sorted.

The small piece of PTFE that came in the H/E was 1mm/1.5mm shorter than the piece that came in the spares bag. I swapped it out, and the stringing has gone.

I had to do this for two printers. It's a shame that the machines are shipped with such a clear problem but I'm grateful that there were spares in the bag.

Posted : 02/10/2022 8:10 pm
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