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!
That’s so strange, I have no problems printing PETG all the time. Like I said, I have different PEI sheets for my Prusa printers - smooth for PLA, textured and satin sheets for basically everything else. Honestly though I probably print PETG 95% of the time, I only use PLA plastic for prototyping because I have a lot of rolls just sitting around.
What are you cleaning the bed with? What kinda printer?
Yeah, I don’t know - I’ve never had any big issues in the past with it either (I mostly print PLA+ though, unless I need something more heat-resistant for my car or outdoor use).
This particular issue was with an Ender 3 V2 running a BLTouch and an aftermarket textured PEI sheet in an enclosure - so there were no drafts or anything that would explain the bad adhesion either. Just scrubbed it with some water and dish soap. That was literally the only thing I messed with between the spaghetti result run and a great first layer run, so I figured I’d mention it in case it might help OP.
Ahhh, see from my Zortrax printer I learned that PETG benefits from no enclosure - drafts are fine. It actually helps increase print quality. I run my Prusa Mk3s printers with no enclosure (since I only use them for mainly PETG and TPU, and occasionally PLA). I have Zortrax printers for my ABS, ABS/PolyCarbonate Blends, and HIPS plastics (but holy hell I hate the closed software on the Zortrax printers and their Zsuite slicing software - absolute garbage which cripples printers that cost thousands of dollars - I can’t even tweak temperature, fan speeds, flow rates, etc mid-print like literally every other printer I’ve handled over the past decade!).