I'm printing with a Prusa MK3, with the following settings:
- 3 perimeters
- 50 % infill
- infill overlap: 50 %
The filament is Polyalchemy emerald green (PLA). Nozzle temperature: 210 °C.
On a simple part (it's a keychain), the shell detaches if I apply a bit of force on a zone of the part that is "fragile". See picture. You might not be able to see it, but only the 2 external perimeters detach from the rest of the part. I used to print this part on another printer, and I never observed this problem.
Any idea on how to solve this problem? It seems the 3 external perimeters didn't fuse properly.