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The Last layers are not sticking  

Active Member
The Last layers are not sticking

Hi everyone.

Can you help mi please with this? 

I have a Prusa 3D printer i3 MK2.5S. 

Filling: 10% and 3 peremetr. Material PETG - temperatur is 230 - 235°C. Speed first layers is 15 then 40-50. and the last layers is 12. mm/s

If I print small things everything is ok but a big flat thing looks like this. 

Do you have any ideas what  to do with it?




Posted : 13/09/2019 6:48 am
Active Member
Topic starter answered:
RE: The Last layers are not sticking

I had to write with someone from Prusa. They helped me.

First layer height: 0,2

Layer height: 0,3 (or less)

Solid layers: 5-6 no less

Infill: 20-30%

O hope this will help you 🙂


Posted : 27/09/2019 8:33 am