First layer temperatures lower than the other layers ones?
 
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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?

Veröffentlicht : 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

Veröffentlicht : 16/04/2020 10:04 am
Muldee Things
(@muldee-things)
Active Member
Themenstarter 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.

Veröffentlicht : 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. 

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He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Veröffentlicht : 17/04/2020 12:28 pm
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