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First layer adhesion torture test (S3)


jasonrohrer

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Posted · First layer adhesion torture test (S3)

This print is in progress now, with three different "stripes" of glass bed treatment.

 

Cylinders have a radius of 4 mm, and are 20 and 40 mm tall (before being angled).

 

Cylinders are angled at 15, 30, 45, and 60 degrees.

 

I will post the results here when the print is done.

Screenshot from 2022-12-21 15-26-14.png

Screenshot from 2022-12-21 15-27-06.png

Screenshot from 2022-12-21 15-27-45.png

AdhesionTestLayout.png

Screenshot from 2022-12-21 15-37-54.png

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    Posted · First layer adhesion torture test (S3)

    Results.

     

    Magigoo lost two of the taller towers.

     

    Bare glass lost three taller towers and two shorter towers.

     

    Layerneer Bed Weld lost no towers (there's some bird's nest over there, but it was transported there from the other towers that fell).

     

     

    my_photo-1.jpg

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    Posted · First layer adhesion torture test (S3)

    In this case, since the bases are so tiny, they all released easily, even the bare glass.

     

    A release test could use objects with very large bases with full contact to the bed.

     

    However, it's much harder to test "easy release" because measuring "how hard you need to push" isn't that straight forward.

     

    If you have any ideas about how to do that, I'm open to hearing them.

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    Posted · First layer adhesion torture test (S3)

    Hey @jasonrohrer,

     

    That's some cool research!

    I'm super curious; How did you treat the uncoated glass? 

    I've seen some interesting research where silicone rollers or packing tape is used to remove the last dust particals/fatty fingerprints just before printing. It ended up improving both the adhesion and release. 
     

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    Posted · First layer adhesion torture test (S3)

    I've been wiping it down repeatedly with 70% Isopropyl alcohol, until there are no visible fingerprints or dust.  I hold it an an angle in the light, to get a glancing reflection, to make sure it is clean and streak-free, etc.  I don't let the IPA dry on the surface, but wipe it dry with a paper towel.

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