The Elegoo Neptune 4 Plus is a large-format FDM printer with a 320 x 320 x 385 mm build volume and Klipper firmware that pushes speeds up to 500 mm/s. A 300 °C hotend and dual-gear extruder let it run PLA, TPU, PETG, ABS, ASA and Nylon, while 121-point auto bed leveling and vibration sensors keep quality steady at speed. It suits makers who want big prints and fast turnaround without paying for a CoreXY flagship. Against rivals like the Creality Ender-3 V3 Plus and Anycubic Kobra 2 Max, it offers more hotend temperature and bed leveling points at a similar size, though it is a bed-slinger, so tall or very fast prints can show ringing. Owners rate it highly, praising speed and value while noting noise and setup tuning.
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Owners rate the Neptune 4 Plus highly, calling it fast and capable for its size. Many praise the large volume and easy leveling, while some mention noise and the tuning needed for high-speed printing.
The Elegoo Neptune 4 Plus is an FDM 3D printer with a build volume of 320 × 320 × 385 mm (12.59 × 12.59 × 15.15 in). The size allows one large model or several small objects in a single print. It runs pre-installed Klipper firmware on a quad-core ARM 64-bit processor. Maximum print speed is 500 mm/s, with a default of 250 mm/s.
The printer supports input shaping and pressure advance calibration to reduce artifacts, filament ooze and blobbing. Acceleration sensors on the X and Y axes automatically calibrate resonance compensation to reduce vibration. A 121-point (11 × 11) auto-leveling system handles bed leveling.
The dual-gear direct extruder has a 5.2:1 reduction ratio and weighs 290 g. The hotend has an all-titanium alloy throat pipe, a brass heating block and a 60 W ceramic heating element. It reaches 300 °C, so it can print PLA, PETG, ABS, ASA, TPU and nylon. Nozzle PID parameters are calibrated automatically. An enclosure is recommended for ABS and ASA.
