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back side of first layer problem....  

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J.J. Kucharczyk
(@j-j-kucharczyk)
Active Member
back side of first layer problem....

When printing begins, it starts from the front right side, let's say closest to the zero point of the X-axis and Y-axis.

https://photos.app.goo.gl/49b81Ftrb1byvVia9

The problem begins in the rear sections of the Y axis.

From behind, at a certain height Y, it starts to make a strange sound. I checked, nothing in the casing is resonating!

https://photos.app.goo.gl/GdBrH5gYZsWKGdkd7

At some point, it simply stops working properly. It also stops sticking the material to the sheet metal.

https://photos.app.goo.gl/xT8tNY3dn6c27k6c6

https://photos.app.goo.gl/xXgbz3xF1J2g24WQ7

 

The first layer at the rear of the Y-axis always comes out with some kind of defect.

https://photos.app.goo.gl/4UfFzUBNjTgCEXcr5

https://photos.app.goo.gl/XeoqkvKzByyshrAM6

Metal plate cleaned with pure IPA, nozzle clean. Filament is OK and i I tried three different brands, and as you can see in the video, the first batch at the front of the Y axis comes out fine.

Can anyone advise me? Since I started using CoreOne, I've only encountered problems.

 

 

 

Posted : 19/08/2025 7:04 pm
Diem
 Diem
(@diem)
Illustrious Member

It sounds like a screw may be working loose somewhere - add a check to your next monthly maintenance session.

Those do not look like the usual fingerprint patterns but your poor adhesion is probably caused by some sort of grease - clean the print sheet with dishwashing detergent (Dawn/Fairy) and plenty of HOT water.

The first layer dribble capture might have been a one-off or you may have slightly damp filament 'though there are no other signs.

Cheerio,

Posted : 19/08/2025 10:56 pm
J.J. Kucharczyk
(@j-j-kucharczyk)
Active Member
Topic starter answered:
RE: back side of first layer problem....

Thanks. 

Both plates are cleaned. I guarantee that they are always clean and free of any grease.

As I already mentioned, the filament comes from three different manufacturers and Prusament.

Since I got CoreOne, I spend more time looking for solutions to problems that keep popping up. It would be nice to just start printing.

Regards

 

Posted : 20/08/2025 4:16 am
Diem
 Diem
(@diem)
Illustrious Member

Both plates are cleaned. I guarantee that they are always clean and free of any grease.

Another possibility, rarer outside of schools, are sugars.  Occasional cleaning with a different solvent; eg. water, does often pay off.

Cheerio,

Posted : 20/08/2025 8:45 pm
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