So, I’m still trying to dial my printer in and am having issues with the first layer sticking. On short lines it sticks fine, but on long lines is peels up and scallops. I’ve tried various temps on the extruder and the heated bed, replaced the glass/PEI with just a cheapo glass piece and am still having the same problem. I’ve Zero’d out my Z with the paper trick numerous times and have adjusted my print start both up and down in the Z direction. I just can’t dial this thing in. Any ideas since I am totally out of them? My next idea is to get a BLTouch to zero out across the bed but I don’t think that’s the issue (but I could be wrong).
On small parts, its fine - it’s just on bigger parts with long, unbroken extrusion runs. It almost seems like the extruder itself as it goes past an already put down line is somehow sucking up the line it had just put down. Once about 4-5 lines get sucked up, the next line lays down ok and then the process repeats itself. Too hot maybe? I’ve been turning my temps up, maybe I should try turning them down? In the pic below, the temps were at 77 bed and 209 extruder at the time when I stopped the print (I stopped it on the long scalloped section). I had started this print at 73 and 205 and turned them up a degree as I saw the problem occurring. I let it make a few more passes to see if the problem went away and when it didn’t I turned them up another degree. Maybe I should be turning them down? I’m just at a loss at this point.