Im very new to 3d printing and this is my first time using anything other than pla. So far all of my prints are lifting off the bed at the corners. They start off looking beautiful. No stringing, great adheasion, etc. But after a few layers, they start to come off. Especially on larger prints.
Heres my setup: Ender 3 pro with skr mini e3 v2 Creality Ender 3 glass bed upgrade Bed temp: 90C Extruder temp: 240C Nozzle diameter: .4 Layer height: .2 First layer: .45 Speed: 60mm/s Slicer: Silc3r
I realize that asking this question is like asking WebMD to dianose my sniffles, cause it can literally be anything, but Im hoping someone with more experience can give me some pointers on what works for them. Thanks yall!
Bed and extruder both seem too hot for PETG, but it depends on your exact brand/type of filament. Are you using a textured/satin sheet? Glue stick on a smooth sheet is pretty unreliable. Some brands of PETG seem more prone to contracting while cooling than others too (avoid “Kaaber” on Amazon, it was pretty bad hah).
Also make super sure your bed is clean. Washing with dawn liquid dish soap, drying carefully, then wiping with high-roof rubbing alcohol works best for a new sheet.