Polycarbonate on the Anycubic Kobra 2
Not really; the hardware falls short. Open budget bed slinger for the everyday materials.
Polycarbonate is not a match for the Anycubic Kobra 2
Nozzle can’t get hot enoughPrinter
Polycarbonate needs 260-290 °C at the nozzle, and the Anycubic Kobra 2 tops out at 260 °C. This combination will not work.
No enclosure on this printerPrinter
The Anycubic Kobra 2 is open to the room, and Polycarbonate warps and cracks in open air. Small parts can survive; for anything bigger, add an enclosure (even a grow tent or a box over the printer helps).
Use the lower end of the bed rangePrinter
Some Polycarbonate spools ask for up to 120 °C on the bed; the Anycubic Kobra 2 reaches 110 °C. Set the bed near 110 °C and add a glue stick if corners lift.
Keep the spool dryMaterial
Polycarbonate soaks up moisture from the air, and damp filament prints rough and stringy. If that happens, dry the spool at 80-90 °C for 6-8 h and store it sealed with desiccant.