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PLA lifting from bed in one corner  

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Louis
(@louis-3)
Eminent Member
PLA lifting from bed in one corner

Hi folks, I’m printing this coat of arms for a friend. The first layers stick to bed properly, it’s after 7 or 8 layers that it starts lifting. What am I doing wrong? I also notice that when doing the infill, I could hear the nozzle rub on the previous layers in a corner. Help!

This is with Filaments.ca PLA with the bed at 60 and the extruder at 210. Sliced with PrusaControl at 0.15 layers.

Posted : 08/04/2018 8:59 pm
Erik
 Erik
(@erik-3)
Estimable Member
Re: PLA lifting from bed in one corner

Try cleaning your PEI sheet really well. Wash it with dish soap and water. Then wipe it down with 90+% isopropyl alcohol. Be sure not to touch the print surface while cleaning it. Then use the included glue stick to put down a nice, thin layer of glue where the print will be. This should help keep your print stuck down very well.

Oh, and check your Live Z adjust. You want the first layer to have a consistent squish into the bed. You can review your printing handbook to see what it should look like.

Posted : 09/04/2018 12:26 am
Louis
(@louis-3)
Eminent Member
Topic starter answered:
Re: PLA lifting from bed in one corner

I use alcohol wipes before each print. But I’ll rerun the calibration. I looked at the completed print bottom and where it lifted the print doesn’t seem as squished as the rest... is there an auto leveling issue?

Posted : 09/04/2018 1:05 am
imod.systems
(@imod-systems)
Honorable Member
Re: PLA lifting from bed in one corner


I use alcohol wipes before each print. But I’ll rerun the calibration. I looked at the completed print bottom and where it lifted the print doesn’t seem as squished as the rest... is there an auto leveling issue?

Alcohol wipes are typically 70% isopropyl alcohol, you need 90+. Also, raise your Z a little bit, it's too low.

The reason why the print is lifting in the corner is because there's to much pressure from the extrusion of the filament because your nozzle is too low. There's too much filament being extruded in such a tight spot that the only place for the filament to go is up.

Posted : 09/04/2018 1:58 am
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