First layers of ring print skips circular pattern at some points
 
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First layers of ring print skips circular pattern at some points  

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jonp
 jonp
(@jonp)
Membre
First layers of ring print skips circular pattern at some points

How do I fix these lines hanging in the air of the inner ring? What is the cause for it? I had similar issues with past prints of ring shapes too.

 

Publié : 28/06/2023 1:38 pm
Thejiral
(@thejiral)
Noble Member
RE:

Bad layer adhesion (if it is on the first layer it is bad bed adhesion). Possibly also the hotend temp is too low, part cooling too high or too low, print speed too high. The first layer also looks as if there is either slight underextrusion or the z-offset is off a bit. 

What material are you printing? PLA or something else?

PS: In your g-code preview, those straight inner lines don't exist I suppose and if you observe the printer, the head is also not moving straight in some parts, is it?

Ce message a été modifié il y a 1 year 2 fois par Thejiral

Mk3s MMU2s, Voron 0.1, Voron 2.4

Publié : 28/06/2023 1:48 pm
jonp a aimé
Thejiral
(@thejiral)
Noble Member
RE: First layers of ring print skips circular pattern at some points

Also, I just realized, this is an inner overhang, is it? That is of course an additional challenge to layer adhesion as a part of the line is printed mid air and the chewyness of the filament is pulling towards a linear shortcut instead of following the curve.

If nothing else, printing slower should certainly help. 

Mk3s MMU2s, Voron 0.1, Voron 2.4

Publié : 28/06/2023 1:51 pm
jonp a aimé
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