ELEGOO Neptune 4 Max 3D Printer, 500mm/s High Speed Large FDM Printer with High-Temp Nozzle, Auto Leveling and Direct Drive Extruder, 16.53×16.53×18.89 Inch Printing Size.【500mm/s Lightning-Fast Speed】Neptune 4 Max comes with the powerful Klipper firmware, enabling impressive printing speeds of up to 500mm/s (default 250mm/s) and up to 8000mm/s accelerations. Rapid filament is recommended for high speed mode【Massive Build Volume】16.53”x16.53”x18.89”/420x420x480mm spacious build volume, Neptune 4 Max help you bring ambitious designs to life, whether for large models or multiple smaller objects【Precise & Excellent Printing】Support input shaping and pressure advancing, and acceleration sensors on the X and Y axes for automatic calibration, reduce impact of vibration on the printing accuracy. You can get precise details, amazing quality and fast printing all at the same time【Direct Drive Extruder】Self-developed dual-gear direct drive extruder has a 5.2:1 reduction ratio, providing powerful extrusion and smoother filament feeding. Paired with metal throat pipe and unique air duct design to reduce nozzle clogging risk【300°C High-temp Nozzle】High-temp nozzle with extended hot end design, 60W ceramic heating element and PID parameters automatic calibration, ensures faster and smoother melting and extrusion, can handle various filament materials as PLA, PETG, ABS, TPU and nylon【Efficient Cooling & Easy to Use】Powerful double-sided cooling fans and model cooling blower fans prevent warping and enhance print quality. Various connect options including WIFI, U disk, and LAN, just start your printing jobs with a one-key file transferPrint volume: 420*420*480mmMax printing speed: 500 mm/s11×11 (121) points auto levelingUp to 300°C nozzleCompatible with PLA/PETG/ABS/TPU/Nylon FilamentsWIFI/WLAN/USB transfer