I started a new print.
Everything went Well.
PLA, 215°, 0.15mm and 33% fillin + support
This is a standard Exiii/e-nable Robotic arm piece and I have no doubt that the stl is OK.
As you can see on the 2 latests pictures, most of the print is very nice and fine.
At some point only one small part of the print has started to be degraded.
I don't think it's an issue with the temperature, nor the general parameters of the print, or the full part will not be OK.
I can't see any parallelism issue on the printer itself ; I can uselly print properly in that printer area.
I'm wondering if anyone have this this already?