First layer/Bad adhesion
Hi guys, what could be a possible problem for this? Im using default preset, its buddy 3d matt pla, I just wiped the bed with iso alcohol, but it won't stick
RE: First layer/Bad adhesion
You might want to skip the ISO as right now, from those photos it still looks dirty.
Warm water, small drop of dish soap and wash it with that. Rise completely off, once you think its rinsed, repeat rinsing.
For drying, I would use either paper towels, or best is to let it air dry
Also which iso are you using 90% is recommended, 70% doesn't really work too well.
Shane (AKA FromPrusa)
RE: First layer/Bad adhesion
Thanks, It helped, I'll check my isopropyl alcohol, soap just did more
You probably want both: Choose one regular cleaning method then use the other once every few weeks to pick up residues that are insoluble in one of the solvents.
Cheerio,
RE: First layer/Bad adhesion
You can carefully and lightly sand the PEI layer on the plate with the rough side of a dish sponge while it is dry. The layer will become a little dull, but in the end it doesn't matter (you are not printing a mirror surface) and it is not visible at all on the print, but the adhesion will improve significantly. Incidentally, this procedure was also recommended by Josef Průša at the time when MK2 printers appeared, when the same foil was glued directly to the build plate. And if that fails, spraying it with a light mist of 3dLac will safely fix it. 3dLac residues can be washed off with IPA, but this is usually not necessary.