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Prusament PLA Grey doesnt stick at all  

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Max Luedemann
(@max-luedemann)
New Member
Prusament PLA Grey doesnt stick at all

Hey Guys,

I have been printing through a couple of KGs of filament so far, I have changed nozzles and leveled beds, but for the death of me, I can't get the 2nd roll of  Prusament Mouse Grey to stick to by smooth PEI sheet.

I cleaned the plate with isopropanol, calibrated the heights at least 10 times by now, exchanged  the nozzle, calibrated again etc....

i don't have any idea what else I can do :/

Best Answer by Diem:

When you change nozzles the old Z calibration is void and it must be done over.

Your Z value seems a little low, a little too squished.   Take a note of the current value so you can easily go back if you overshoot the level.

But first:  Clean the steel sheet with dishwashing detergent (Dawn/Fairy) and plenty of HOT water, rinse well and dry with a fresh paper towel. Handle by the edges only.

Isopropyl alcohol is OK for maintaining a clean print bed but it's not enough to clear the fingerprints off a dirty sheet.

At the end of the calibration you are aiming to print a single layer *sheet*. It should be possible to peel it off in one and fold it without the threads seperating. If it breaks into lines it is too high, not squished enough. If it is a single sheet but with wavy lines or drag marks on it you are too low.

For most people it pays to use 7x7 mesh bed levelling.

Cheerio,

Posted : 14/09/2021 5:14 pm
Diem
 Diem
(@diem)
Noble Member

Please show us the bottom of a failed print and your first layer Z calibration.

Cheerio,

Posted : 14/09/2021 6:06 pm
Max Luedemann
(@max-luedemann)
New Member
Topic starter answered:
Suggestions?

Dear Diem,

after long and tedious optimization in reached the following result.

Do you have an idea what could be the middle problem?

Posted : 15/09/2021 1:37 pm
Diem
 Diem
(@diem)
Noble Member

When you change nozzles the old Z calibration is void and it must be done over.

Your Z value seems a little low, a little too squished.   Take a note of the current value so you can easily go back if you overshoot the level.

But first:  Clean the steel sheet with dishwashing detergent (Dawn/Fairy) and plenty of HOT water, rinse well and dry with a fresh paper towel. Handle by the edges only.

Isopropyl alcohol is OK for maintaining a clean print bed but it's not enough to clear the fingerprints off a dirty sheet.

At the end of the calibration you are aiming to print a single layer *sheet*. It should be possible to peel it off in one and fold it without the threads seperating. If it breaks into lines it is too high, not squished enough. If it is a single sheet but with wavy lines or drag marks on it you are too low.

For most people it pays to use 7x7 mesh bed levelling.

Cheerio,

Posted : 16/09/2021 3:05 am
Max Luedemann
(@max-luedemann)
New Member
Topic starter answered:
7x7 File

Thanks for the tip with the water cleaning of the bed, I will do that right away.

Do you have a link for the 7x7 leveling file? i cant seem to find it.

 

Best

 

Max

Posted : 16/09/2021 5:58 am
JoanTabb
(@joantabb)
Moderator

Hi Max, 
7x7 Mesh Bed Levelling, is enabled through an LCD Menu

regards Joan 

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 16/09/2021 1:57 pm
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