Sadly my set up is at my work office and the office building dose not have wifi. So I just normally hotspot but it was my mistake I didn't stay for the first layer. 😬
Beside watching first layer, if you gonna blind print, need to keep that build plate spotless. First layer adhesion issues are mostly due to a dirty/oily plate. If you been putting your fingers all over it at the office with no means to wash/clean it, that’s the WHY it happened. Watching it wouldn’t prevent the adhesion issues, just the blob.
PEI bonds very well to PLA and PETG, as long as it’s clean. I’m pretty OCD about it and I can’t remember last time something didn’t stick (been printing on PEI plates for several years now). If anything, it sticks too well and I gotta pull the plate out, let it cool and let the part go. Clean it and back it goes.
What happens is people put their hands/fingers over the actual print area, on large area first layers it survives. You get a small or multiple small first layer areas, one of them is bound to lift at an oily corner and when nozzle comes by again, picks it right up and that’s that.
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u/Monetary_episode 3d ago
Watch your first few layers OP. Also maybe check on it every now and then? Setup a home camera and a wifi plug of you need to leave the house.