This full metal M1 hotend contains a ceramic heater and thermistor. It has an improved nozzle structure, where the heating block and nozzle are connected with a screw thread. This reduces the chance of material leakage during printing. The nozzle is made of SKD11 hardened steel, allowing this hotend to withstand temperatures of up to 320 ˚C. Because the radiator and the heating block are connected by two screws, there is less chance of problems during high-speed 3D printing. Finally, there is better heat conduction thanks to the use of a nickel-plated chromium zirconium and copper alloy. This hotend is suitable for the X1 series 3D printers from Bambu Lab.