Polycarbonate on the Creality Ender 3 V2
Not really; the hardware falls short. The classic budget starter. Bowden drive and a modest 250 °C ceiling.
Polycarbonate is not a match for the Creality Ender 3 V2
Nozzle can’t get hot enoughPrinter
Polycarbonate needs 260-290 °C at the nozzle, and the Creality Ender 3 V2 tops out at 250 °C. This combination will not work.
No enclosure on this printerPrinter
The Creality Ender 3 V2 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 Creality Ender 3 V2 reaches 100 °C. Set the bed near 100 °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.