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

submitted 1 month ago* (last edited 1 month ago) by [email protected] to c/[email protected]

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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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[–] [email protected] 3 points 1 month ago (7 children)

Could be too much heat so when film retracts some still drip and causes that. What temperature are you printing at?

[–] [email protected] 2 points 1 month ago (6 children)

First layer 240 deg Celsius, other layers 245 degrees.

[–] [email protected] 5 points 1 month ago

according to manufacturer Temp should be between 230-250. Maybe try with 230 and see if it helps?

A better option is to print a "temperature tower"

something like that: https://all3dp.com/2/temp-tower-cura-tutorial/

It should show which temperature is ideal

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