Hi, I wanted to share something that I discovered. It's quite simple really.
I'm printing on Kapton, and so far everything sticks to it, ABS, PLA, PETG. All good. In between prints I usually clean the bed with some acetone on a paper towel while using protective gloves since acetone eats the fat away from your skin tissue causing all kinds of issues.
But there is one really important things I learned and that is that when cleaning the bed, it needs to be
COLD. When the bed is hot and you clean it with acetone, the prints won't stick well and the first layer would rather stick to the nozzle than to the bed.
I couldn't really find any info about this, but I suspect that on a heated bed, acetone doesn't really touch it and it evaporates too fast for it to really do anything to the kapton surface. So in short, if you're cleaning your bed with acetone and prints still don't stick well, it could well be that it is because the bed is too hot.
http://www.marinusdebeer.nl/
