Neptune 4 Plus FDM Filament 3D Printer

Large-format printing, high-speed performance, and smart automation for ambitious 3D printing projects.

The ELEGOO Neptune 4 Plus is a large-format FDM 3D printer designed for creators who need more printing space without sacrificing speed or precision. With a 320 × 320 × 385 mm build volume, 500 mm/s maximum printing speed, Klipper firmware, automatic bed leveling, and a 300°C high-temperature nozzle, the Neptune 4 Plus is built to handle everything from detailed models and prototypes to larger functional parts.

Key Features

• Large 320 × 320 × 385 mm Build Volume: Create larger models or print multiple smaller objects in a single session.
• 500 mm/s Maximum Speed: High-speed printing helps reduce production time, with a default printing speed of 250 mm/s.
• Klipper Firmware: Pre-installed Klipper firmware and a powerful 64-bit quad-core processor enable fast command processing and advanced printing functions.
• 12,000 mm/s² Maximum Acceleration: Designed for efficient high-speed movement while maintaining accurate printing performance.
• 121-Point Auto Bed Leveling: An 11 × 11 leveling grid automatically compensates for variations across the print surface.
• 300°C High-Temperature Nozzle: The extended hot end with a 60W ceramic heating element supports a broad range of filaments, including PLA, PETG, TPU, ABS, ASA, and Nylon.
• Dual-Gear Direct Extruder: A 5.2:1 reduction ratio provides reliable and consistent filament extrusion.
• Advanced Cooling System: Multiple high-performance fans provide efficient cooling to help reduce warping and improve layer quality during fast printing.
• Input Shaping & Pressure Advance: Advanced Klipper features help reduce vibration-related artifacts and maintain consistent material flow.
• Automatic Resonance Compensation: X- and Y-axis acceleration sensors automatically calibrate vibration compensation parameters.
• Dual-Sided Build Plate: The specialized PLA surface provides strong adhesion and reduced warping, while the textured PEI surface offers strong adhesion and easier model removal.
• Automatic PID Calibration: Automatically calibrates nozzle temperature parameters for more stable and consistent heating.
• Power-Loss Recovery: The printer can resume a print after an unexpected power interruption.
• Filament Detection: Detects filament runout or breakage and pauses the print to help prevent wasted material.
• Multiple Connectivity Options: Transfer files through Wi-Fi, LAN, or USB and use web-based remote control for convenient printer management.

Built for Large-Scale Printing

The Neptune 4 Plus gives you significantly more workspace than a typical desktop 3D printer. Its 320 × 320 × 385 mm build volume allows you to produce larger objects in fewer pieces or arrange multiple smaller models on the build plate at once.

This makes it suitable for large prototypes, models, cosplay components, functional parts, educational projects, and creative designs.

High-Speed Klipper Performance

The printer comes with Klipper firmware, an ARM 64-bit quad-core processor, and 8GB of internal storage. Together, these features enable high-speed operation of up to 500 mm/s and acceleration of up to 12,000 mm/s².

Klipper's Input Shaping and Pressure Advance functions help reduce ringing, ghosting, filament oozing, and blobbing, helping maintain cleaner and more consistent prints at higher speeds.

Powerful Extrusion and High-Temperature Printing

The Neptune 4 Plus uses a dual-gear direct-drive extruder with a 5.2:1 reduction ratio for smooth and consistent filament feeding. Its 60W ceramic heating element and 300°C-capable hot end provide the temperature range needed for a variety of materials.

ELEGOO lists compatibility with PLA, TPU, PETG, ABS, ASA, and Nylon. For materials such as ABS and ASA, ELEGOO recommends using a suitable printer enclosure.