Full brims, mouse ears, with glue, without glue, higher bed temperature, lower bed temperature, flat base, concentric cutout base - whatever I try, I seem to be getting wank adhesion, major warping, and ultimately this shitshow.
Dry PLA, warm room, no draught, plate cleaned with IPA. I’m going to fucking punch this thing in its stupid fucking face.
Edit: Prevailing advice very much seems to be to bust out the Fairy liquid and give it a good scrub, so I’ll try that. It’s a Kobra Neo 2 so is auto-levelling, so I can’t piss around with any of that stuff (as far as I know). Another quick question while I think about it, does everyone always print onto the bed at ~60°C? Because Orca Slicer’s default for a textured PEI plate is 45°C, which seems mad. I think I tried it once and it was shite so turned it back up to 60.
Glue stick. 65C bed 220C extrusion Set Z lower Clean bed with soap, not IPA. IPA dries and redeposits oils. Check that bed is actually heating evenly.
Have you tried cleaning the plate with dawn dish soap vs IPA? Soap is much better IMO at actually cleaning. I do this with nitrile gloves to make sure I’m not getting any oil on my print surface but there are definitely a lot of variables so you may have already tried my suggestion.
This time of year I like to use something darker than IPA, like a porter or stout
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Mmmmm, love me a good stout! I believe February is stout month. :)
I do this too. IPA is great (beer and chemical) but soap and hot water work best for me
- verify actual bed and print nozzle temp using IR or contact probe. Thermistors can die and cause too low a temp.
- fully wash bed with soap and water, not just IPA.
- try a different spool or brand of filament. Sometimes whole spools are just formulated badly and it won’t ever adhere right. I’ve tossed a few spools that wouldn’t ever print correctly no matter the settings.
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You can dry it with a microfiber cloth too
My adhesion was like this until I washed my bed with dish soap, and now I have to chisel my prints off with a hammer because they stick on too well.
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You have already gotten a ton of good suggestions already but I’d like to vouch for the Ellis 3d printing tuning guide and Suave Mega Hold Hairspray (huge pink can).
If you follow it from beginning to end you will have those prints coming out looking clean and actually sticking to the bed. It will take you a few hours but I promise you won’t regret it.
I find in 3d printing, sometimes it actually matters in what order you do your tuning.
Hot tip: Read the instructions first before you start doing anything. I kept making mistakes because I didn’t do that
As others said, dish soap over IPA. I’ve also had shite PLA before as others mentioned. Find a good brand and stick with it. Also, magigoo is amazing. Basically glue but not glue. Designed to stick when the bed is hot then release when it cools. I add magigoo any time I have a long print where I worried about potential warping or lifting.
My understanding is that dish soap cleans grease and IPA smears it around.
What I do is wash with soap once, then clean with IPA between prints starting from the center outwards (* until it’s dirty enough to need another proper wash).
With PLA? Really? What plate material / surface do you use?
Maybe change your design if the geometry of the part makes it exceptionally prone to warping at the base, and/or it’s too tall or top-heavy for the bottom surface if your printer is a bed slinger.
EDIT: nevermind, I didn’t see your image. This almost looks like your roll of PLA is bad. Maybe try another brand?
I had similar issues. Turns out I was using 70% ipa. Switching to 90% fixed it.
I fucking love it! I have been there so many fucking times to the point of putting a hole in a wall. Best part is I’d give up walk away for a month or so then literally turn the stupid fuck on and press print and it would print just fine. I just use glass on one printer and carbon fiber on the other. I had pei once threw that shit right in the garbage. A good scuff with 80 grit sand paper on both and wash off with rubbing alcohol. I did have an issue once with a bent touch probe that would fuck my z offset so the first layer wouldn’t actualy be low enough.
After all that maybe your bed has degraded or perhaps a temperature probe has come loose somewhere and needs new paste.
If you use paper towels to clean your bed: Do your paper towels feel ‘papery’? If not they might be waxed.
If you use reusable towels to clean your bed: Do you use fabric softener? Don’t.
I need to point out, IPA isn’t magical. If you’re just giving it a quick swipe, or mopping it around, you’re not actually cleaning it you’re just moving the mess around. It’s fine for some in between stuff, but scrubbing with soap and warm water is going to be much more efficient at cleaning the plate.
This is so important, you gotta wash the print surface, not disinfect it.
Wiping it with alcohol is good and all, but it needs some dishwashing detergent and a soft sponge every now and then.
I put my PEI plate in the dishwasher and then used glue stick and it fixed my problem but YMMV
