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vertical Zits appearing on my small scale prints


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Posted · vertical Zits appearing on my small scale prints

Hi Everyone,

 

I'm fairly new to 3D printing and I wanted to see if I can get some help with my prints! I've been trying to print out some cookie cutters with PLA and I get keep getting these blobs/zits up and down my print. I've tried changing the temperature and the retraction settings and this is the best I can get my print with my cura settings below. Does anyone have any suggestions?

 

Cura 4.8 Settings

20201112_134413.thumb.jpg.2bd845b43d61226d4e5b214c1707e418.jpg

layer height - 0.4mm

hot end temp - 190

print speed - 30

travel speed - 30

retraction dist - 3mm

retraction speed - 50mm/s

 

 

 

 

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    Posted · vertical Zits appearing on my small scale prints

    I am not sure what the zits are, but it could be seam lines where the nozzle begins/ends a loop, and switches to the next?

     

    I never played with retraction settings, so I can't comment on that. But usually, printing slow, cool and in *very thin layers* improves quality. The "slow and cool" you already seem to have, but try 0.06mm layer height?

     

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