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Beatus
(@beatus)
Member
Core One Quality Issues

I've been having more quality issues lately and don't know what's causing them.

Maybe one of you has some advice.

I'm printing a large container that almost fills the entire heating bed.

I'm using Prusament Galaxy Black filament.

The heating bed temperature is 60°C, nozzle 222°C.

The underside is printed incorrectly, see photo 1.

In the corner at the front left edge, the filament comes loose, even when I print something that fills the entire surface of the heating bed (see photo 2).

Thanks for any tips.

Posted : 21/02/2026 10:22 am
Beatus
(@beatus)
Member
Topic starter answered:
RE: Core One Quality Issues

With underside I mean the side that lies directly on the heatbed.

Posted : 21/02/2026 10:24 am
alphasigma
(@alphasigma)
Member
RE: Core One Quality Issues
Posted by: @beatus

[...]

nozzle 222°C.

[...]

 

...the nozzle temperature doesn't fit to Prusas preset for their own PLA filament!

You have an adhesion problem, yes PLA also can warp. Stick to the preset profile!

Place a brim around larger parts or add the "famous"  mouse ears - called "helper disk" in Prusa Slicer -> add part -> Gallery -> move it to the edge, max 1 layer height!

Avoid "sharp" corners, make round corners when designing yourself. 

Core One L

Posted : 21/02/2026 12:32 pm
mnentwig
(@mnentwig)
Honorable Member
RE: Core One Quality Issues

Moisture? Make sure the filament is dry. It's the single most important issue...

Posted : 21/02/2026 12:40 pm
Mac-N4MCC
(@mac-n4mcc)
Estimable Member
RE: Core One Quality Issues

Recommend starting with the Prusa Research configurations in the slicer until you figure out the idiosyncrasies of your printer. I had this problem also. TRy going up or down ten degrees at a time, and work that. Print a temp tower for that filament and your printer.

Extra HAM Radio - N4MCC

Posted : 23/02/2026 4:53 am
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