First layer temperatures lower than the other layers ones?
 
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Muldee Things
(@muldee-things)
Active Member
First layer temperatures lower than the other layers ones?

Hi everyone, a noob question here. Looking at the various PETG filament settings in PrusaSlicer I see that nozzle temp for the first layer is usually 10° lower than the set temperature for the other layers; even the hotbed temp is 5° lower for the first layer.

Shouldn't be the opposite? Shouldn't be the temperatures higher for the first layer?

Posted : 16/04/2020 7:28 am
xhillb61
(@xhillb61)
Trusted Member
RE: First layer temperatures lower than the other layers ones?

No, it´s correct this way

Posted : 16/04/2020 10:04 am
Muldee Things
(@muldee-things)
Active Member
Topic starter answered:
RE: First layer temperatures lower than the other layers ones?

@ulrike-b

Thank you for your answer. Would you mind explain why?

Thank you.

Posted : 17/04/2020 7:32 am
bobstro
(@bobstro)
Illustrious Member
RE: First layer temperatures lower than the other layers ones?

PETG has a tendency to stick to the nearest hottest thing. It's therefore common to have the nozzle a bit cooler and the bed a bit hotter on the 1st layer to encourage it to stick to the bed and not the nozzle. 

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 17/04/2020 12:28 pm
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