Printing at ultra detail causes extruder nozzle to ultimately drag print around detached from bed
 
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Printing at ultra detail causes extruder nozzle to ultimately drag print around detached from bed  

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Jeremy Laurenson
(@jeremy-laurenson)
Active Member
Printing at ultra detail causes extruder nozzle to ultimately drag print around detached from bed

Hi, folks

I have tried printing this model with multiple PLA filaments (Goal is a white hatchbox PLA) and each time, around the same area the nozzle seems to detach the print and I get a blob of death.

My first few prints curled up ad the edges of the first layer, so I increased the air extractor fan (its in an enclosure) and the most recent is flat.

I used Prusaslicer set to matchbox play and everything else default.

 

Posted : 08/02/2022 11:50 am
Thejiral
(@thejiral)
Noble Member
RE: Printing at ultra detail causes extruder nozzle to ultimately drag print around detached from bed

What is your layer height?

If your print detaches you have an adhesion problem it seems. I can't really see how big the first layer of that object is but it seems to be rather small with large overhangs. Try using a brim, or a larger brim if you have already one. Additionally you can also try a Kores stick or an adhesion agent of your choice. Or properly clean your print plate with detergent, if you haven't done so already. 

Printing slower can also help if you have issues with your overhangs. 

Mk3s MMU2s, Voron 0.1, Voron 2.4

Posted : 08/02/2022 1:15 pm
Diem
 Diem
(@diem)
Illustrious Member
RE:

Four thoughts:

The two main reasons for loss of adhesion are a dirty print-sheet or a poorly calibrated first layer Z offset.

Ultradetail is rarely of use with a standard 0.4mm nozzle, save it for finer ones; it requires very accurate calibration.

White filaments are always the trickiest to print in any range as they contain more pigment than coloured plastics and the flow characteristics are impacted.

PLA does not need an enclosure and prints often fail if there is not a good flow of air.

Try printing at 0.2mm layer height or 0.15mm.

If you still have problems show us the underside of a failed print or, better, a first layer Z calibration print still on the print-sheet.

Cheerio,

Posted : 08/02/2022 1:23 pm
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