Filament as it gets older

[Ward]

Ok thanks.

I think I solved the problem.

I just upped the printing temp from 190 to 210. Now the prints seem to be sticking nicely.
I was thinking the extra heat would make the prints lift and curl off the bed even more as hot upper layers were added.
But in this case, maybe the filament needs the higher heat. Not sure. But it seems to be working much better at higher temps.

[gddeen]

At the higher temp, the filament flows better. That gives it more time to seep into the cracks of the tape.

But, did you try printing that first layer .1mm closer to the bed?

After 6 months, the printer has changed much also. Maybe not much but some.

If you REALLY wish to experience not sticking, switch to ABS...