Tri-metal Nozzle, Quick to Swap: The durable steel-tipped copper nozzle is integrated with a titanium alloy heat break. It blocks heat creep and can be swapped super easily. Cooling Trio, Refining the Print Quality: Hot end fan for Minimal Heat Creep; Part Cooling Fan for Instant Hardening; Auxiliary Fan for Overall Print Quality Make use of CF filaments, which are widely used in industrial printing for their mechanical strengthand resistance to wear, deformation, and aging Carefree & Smart Operations from Start to Finish : Out of the Box Experience, Auto Calibration with One Tap The built-in Al camera can watch over printing,and actively alert you when an error occurs. K1C inherits the lightweight and agile CoreXY system of K1. It offers a thrilling speed while retaining the print quality. Max Speed : 600mm/s. Max Acceleration : 20,000 mm/s