Hi all! I have this issue. Im starting to use B-PET (is a PETG but made from recicled PET). The filament is transparent, and should stay transparent o near that after being extruded. I can see comeing out of the extruder in a transparent color... but for some reason after coolin it changes to a white milky color.... and something more strage: I printed a calibration cube: 20X20X110 mm . 3 faces of the cube turn into the white color... and 1 of the faces remained transparent!!!!!!
Any ideas??? Im useing 275 degrees for printing , less than that it jamms the extruder like if temperature was too low.
Thanks in advance