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Print fails with "frayed" ends (feddit.org)

submitted 2 months ago* (last edited 2 months ago) by [email protected] to c/3dprinting

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Hi, I've tried to print a model plane for my father. It's this model, using this LW-PLA right after purchase.

As you can see in the image of this post, the print is going well until it reaches a certain layer, where the filament does not get deposited properly for the entire layer, only intermittently. The following layers then, of course, have the same problem and I get this failed print with these "frayed ends". Additional attempts failed the same way at a similar layer count.

If someone has some experience with lightweight PLA (LW-PLA) and knows what can be done to solve this, I and my father would greatly appreciate the help.

Thanks in advance.

Edit: Additional info: I'm using the PrusaSlicer files from the linked page. Edit2: The printer is Prusa Mk4.

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[–] Tokugero 3 points 2 months ago

Something I haven't seen suggested yet that has caught me up: a bad sdcard can corrupt an STL at a layer height and lead to this type of fault.

Try swapping the card while you're testing other things to see if that helps at all.