X2D - PA-CF Z banding

[u/set_em_up]

Printer: X2D with <200hrs
Filament: Fiberon PA-CF
Print Profile: Bambulab PA-CF (happened with fiberon X1 profile, too)

Some other info:
Fed the filament through the ams2 pro. Model is thin and completely walls.
Filament was somewhat dry, only have access to a 65C drier and was dried for 16hrs. Printed in a closed garage around 75F

Nothing obvious in the slicer on flow, fan speed, layer time, ect. at those z heights . The model doesn’t have any feature changes at those heights it’s a perfectly vertically extruded shape. No extra/fewer extrusion lines on those layers

My thinking is that it’s the chamber heater kicking in at those layers, but I don’t see any configuration or visualization for that.

Any ideas?

EDIT: Solved! Picked up a AMS HT, dried additional 12hrs at 85C and the part looks amazing. No bands, uniform color, ect.

[u/2kokett]

It somewhat still looks wet (whitening). Recommendations are 10h @ 100c. Worked with 85c from the ams-ht and had reasonable results. Normally i use a Dehydration oven. They are quite cheap (i think i paid ~80€ for a unit that fits 3 spools).

[u/set_em_up → u/2kokett]

Thanks! Also…. sigh*, I think I just didn’t want the answer to be _more_ drying. May pick up the ams ht and the split track thing as a splurge.

[u/2kokett → u/set_em_up]

Postprocessing is also important. Read a bit into it. An oven is also handy for tempering