As indicated in the G-code file. It can be easily broken and is even water-soluble. The generated 3D model will not show any support markings. CARDBOARD SPOOL COMPATIBILITY: CFS for K2 PLUS 3D Printer is not picky about consumables, it is compatible with Tristar Hyper series, especially Hyper RFID consumables, which can be quickly and automatically recognized.
eBay