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Uneven top layer  

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matus141
(@matus141)
Active Member
Uneven top layer

Hello guys, i noticed my latest prints have uneven top layers as shown in the picture. I have this problem with generic PETG and prusament PLA, both look the same. Can you guide me how to solve this problem? thank you

Posted : 26/08/2021 9:34 am
JoanTabb
(@joantabb)
Veteran Member Moderator

do you have enough top layers to mask the infill? 
this looks like slight over extrusion
try reducing your flow rate, a little

Prusa slicer normally sets the flow rate at 95%, try 90%

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 26/08/2021 11:24 am
matus141
(@matus141)
Active Member
Topic starter answered:

thank you, i will try this... but for me it looks like underextrusion? I am fine with the filled areas, i dont like the ones where lines dont touch each other. i have 4 top layers.

Posted : 26/08/2021 12:57 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
Ploughing

Hi Matus, 

I am hundreds of miles away...  lol..   to me, it looks like the nozzle is pushing some material out of the way, as it moves across the surface. 
And I think that is causing the ridges where the surface is rough! 

you are able to touch the surface, are the rough parts raised?

regards Joan

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 26/08/2021 1:07 pm
matus141
(@matus141)
Active Member
Topic starter answered:
RE: Uneven top layer

from left to right 100%, 95%, 90% flow rate... didnt work 🙁 

This post was modified 3 years ago by matus141
Posted : 26/08/2021 4:17 pm
fuchsr
(@fuchsr)
Famed Member

Can you export the project (Save Project As in PrusaSlicer) as a 3mf file, ZIP it (important), and upload it so we can see the model and all your settings?

Posted : 29/08/2021 2:07 pm
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