I bought some Sunlu PETG-CF and the info on the box said to rint at 240-50C, while the Creality print suggested 290C.
Tried 290 and got an extruder blockage - tried 250 and also got a blockage. Tried 260 
- all good.
The blockage at 290 was probably from heat creep while the lower temp was probably from too low a temp.
Anyone else printing with PETG-CF? If so what noble temp are you using?
My regular PETG nozzle temp is 255-60C.
I’m using a K2 plus.
If it prints fine at 260… why bother? You can’t always believe what is on the box or role… you have to find the sweet spot for printing the material…
Hi, I print the Tinmorry PETG-GF by 265 degree Celsius, an by 200mm/sec. Thats works.
To be sure what’s best test test test you’ll be glad you did a couple of the built in tests and nail that setting.
Don’t forget to switch of auto calibrate when you send the print
Hi,
I am using 260 first layer them 250 °C and 70 °C for the bed
Volumetric speed at 10 mm3/s
Enclosure 35 °C
Black filament Generic….
Hello,
Like effjot, I also use Tinmorry PETG-CF on a K2 Plus. I’ve had success printing with the following:
Nozzle: 250C
Bed: 80C
Chamber: 35C
Max Volumetric Speed: 10mm^3/s
Retraction: 0.8mm/30mm/s
Hope this helps 