Good morning... So im working with a client and every time i get to a certain (+ or - an inch) on this part it fails. It stops extruding, jams and grinds on the filament.
I dont know if it stops feeding because it buckled or if buckled because it stopped feeding.
here is a pic of the filament


Ive tried to loosen the extruder screws to put less pressure on the filament. ive also tried to tighten it to put more pressure on it.
its failed 3 times... these prints are 25 hours each... it fails about 15-18 hours each time.

.2mm layers
75mm/s
215c temps (at high speeds i need the temps up there, and the bond is good and strong)


Would love to get a discussion going on why this is happening and how to perhaps remedy it.
thanks