3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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Why am I getting these bumps and whiskers on my CR-10S Pro V2 prints? (i.imgur.com)

submitted 1 year ago by poofy_cat@lemm.ee to c/3dprinting@lemmy.world

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I've been repairing a Creality CR-10S Pro V2 and can't figure out this persistent oddity. It prints spiral vases and benchies flawlessly, but regular 3D prints often have these pronounced bumps and thick whiskers sticking out. I think it's more than just Z seam blobs, I'm wondering if it's an issue with the wipe settings not working well in PrusaSlicer...

Here's another example of the issue: https://i.imgur.com/ZHssQWI.jpg

I'm using Kaaber transparent PETG, printing at 215/210 nozzle and 75 bed. I know this seems cool for PETG, but this brand tends to melt and ooze at anything hotter.

Here are my PrusaSlicer retraction settings, they are the default for this printer:

https://i.imgur.com/RqrltUL.jpg

I tried slightly bumping the retraction to 6.5mm and 65mm/s, but it made no difference.

Any ideas what would cause this? I'm getting it while trying to print many parts of the honeycomb storage wall off printables.

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[–] stevestevesteve@lemmy.world 2 points 1 year ago

This is basically just nozzle ooze. those little bumps are the extra plastic that's come out when the nozzle is traveling.

I'm not familiar with prusaslicer, but in Cura there are settings called combing that help prevent the nozzle from traveling over plain air (thus the ooze gets left in the walls or infill), that might help, but honestly I've had this same problem and I'd love to hear if you find a good solution for it.