First Layer Calibration Works, But Actual Print Not Working
 
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First Layer Calibration Works, But Actual Print Not Working  

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Imozeb
(@imozeb)
New Member
First Layer Calibration Works, But Actual Print Not Working

Hi.

When I do a first layer calibration using the onboard method, the layers are squished and stick to the build plate correctly.

However, when I try to print a test part e.g. benchy, the first layer does not stick to the build plate and the filament lifts and clogs the nozzle.

What could cause this?

 

I am using the default print settings for a MK3S in Prusa Slicer and then using Pronter Face to print. I am using new Prusament PLA on a steel build plate.

 

Thanks.

Posted : 16/03/2023 11:35 am
Antonio
(@antonio)
Member Moderator
RE: First Layer Calibration Works, But Actual Print Not Working

during the actual print job, adjust the z height from the Live Z Adjust, in your case it seems you need to move the nozzle up, so if  i.e. your current value is -1,200, try to change it to -1,150 and see how it goes.

Ciao

I'm not an expert. Ma parlo anche italiano 😉

Posted : 16/03/2023 12:37 pm
Imozeb liked
Crab
 Crab
(@crab)
Reputable Member
RE: First Layer Calibration Works, But Actual Print Not Working

Are you using the smooth (rather than Satin or textured) PEI build plate?

Even though it might seem your Z is good, use the "Life Z adjust" thread here to get squares and use "live Z" (as they are printing) to get the layer tuned just right. If it's fully squished with 'waves' in the surface as you shine light over it, it is a bit too low.. back off a bit. 

The other recommendation is that with PLA you want to wash the PEI smooth sheet with dish soap and hot water. Scrub with the gentle side of a dish sponge. This is better than Alcohol. 

If the contact surface of a model is really tiny, I've used glue stick to enhance the adhesion, but that should not be necessary on a benchy.

Posted : 16/03/2023 2:19 pm
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