Bad "lines" when print almost horizontal surface on bottom of model
 
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Bad "lines" when print almost horizontal surface on bottom of model  

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Peter
(@peter-30)
Member
Bad "lines" when print almost horizontal surface on bottom of model

Hello, i would like to ask, if there is any solution for this. I was printing head of a funko-pop figure with 0.2mm layer height with PLA material.

It needed supports at its bottom side. I have used organic supports on build plate in Prusa Slicer. After printing and removing supports, there was plenty of filament "lines" stuck there which can be hardly removed, or cant be removed at all. Its mainly at the very bottom, where angle toward print plate is very sharp and gaps between layers are biggest.

I have cut the original model to made only its bottom portion for testing. I tried Variable Layer Height in Prusa Slicer at those places, setting it to lowest layer height it allowed (0.07mm, green portion of the model) for problematic part of the model, but it went the same. I have to use grid type supports as Prusa Slicer told me that organic supports arent compatible with variable layer height print.

Is there any way to improve or solve this and print that portion of the model nicely round? Thanks

.

Napsal : 18/12/2024 8:30 am
Diem
 Diem
(@diem)
Illustrious Member

Two main choices -

Invert the model so the curve is on top.

Replace the curve or fillet, with a 45° chamfer.

Cheerio,

Napsal : 18/12/2024 10:13 am
Peter
(@peter-30)
Member
Topic starter answered:
RE: Bad "lines" when print almost horizontal surface on bottom of model

Its a model of head of a figure, so inverting it in any direction would only move problem to other part of it. The problem is at its chin and entire bottom area. It looks like this:

Napsal : 18/12/2024 10:57 am
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