E3D Revo HeaterCore (Vælg volt 24V 40W/60W) The HeaterCore secures onto a Revo-compatible cold side using a Revo HeaterCore spring (included). After it’s attached, just screw in a Revo Nozzle and you’re ready for simple, tool-free nozzle swaps that don’t need hot tightening. Heats up much faster than a typical heaterblock. It’s designed to be much safer, too –…