https://ultimaker.com/en/community/5185 ... psu-on-um2
and here is a video of printing peek:
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TEMPERATURES
Material Nozzle Bed
Ultem 9085 360C 150C
Ultem 1010 370C 160C
PSU 370C 160C
PPSU 380C 160C
PEEK 400C 160C
Air temperature is around 60-65C.