Neptune 4 Plus 3D Printer
The ELEGOO Neptune 4 Plus expands high-speed FDM printing into large-format production while maintaining precision and reliability. Powered by Klipper firmware and a reinforced motion system, the Neptune 4 Plus enables creators to produce larger parts faster without sacrificing print quality.
Featuring an all-metal hotend, intelligent automatic bed levelling, and an upgraded cooling system, the printer is designed for demanding workflows such as prototyping, cosplay components, functional parts, and batch production. The larger build volume, combined with high-speed performance, makes the Neptune 4 Plus ideal for makers ready to scale beyond standard desktop printing sizes.
Software & Support
You can easily access the recommended slicing software directly from the ELEGOO Africa website, where the latest version is available for download along with setup guides and supporting resources. This ensures you are working with the most up-to-date software optimised for the Neptune 4 Plus, allowing for a smooth setup process, simplified print preparation, and the best possible printing performance from day one.
Key Features
- High-speed printing up to 500 mm/s
- Klipper firmware pre-installed for advanced motion control
- Dual-gear Direct Drive Extruder
- Intelligent 121-point automatic bed levelling
- Large-format build volume for bigger projects
- All-metal hotend supporting higher temperatures
- Dual Z-axis motors with reinforced structure
- High-performance multi-fan cooling system
- Quiet stepper drivers
- Wi-Fi and LAN remote control capability
Technical Specifications
Printing System
| Feature | Details |
| Printing Technology | FDM (Fused Deposition Modelling) |
| Firmware | Klipper (factory installed) |
| Extruder Type | Dual-Gear Direct Drive Extruder |
| Hotend | All-metal high-temperature hotend |
| Nozzle Diameter | 0.4 mm (replaceable) |
| Maximum Nozzle Temperature | 300°C |
| Maximum Heated Bed Temperature | 110°C |
| Auto Bed Levelling | 121-point automatic levelling |
| Motion Structure | Dual Z-axis lead screws with dual motors |
| Mainboard | 64-bit high-performance processor |
Print Performance
- Maximum Print Speed: Up to 500 mm/s
- Maximum Acceleration: 20,000 mm/s²
- Layer Height: 0.05 – 0.30 mm
- Printing Accuracy: ±0.1 mm
- Input Shaping: Supported (Klipper feature)
- Pressure Advance: Supported
High-speed motion system enables fast production of large-format prints while maintaining consistent detail.
Build Volume
- Build Volume (L × W × H): 320 × 320 × 385 mm
- Build Plate: Magnetic PEI spring steel plate
- Heated Bed: Intelligent heated bed system
- Build Surface: Textured PEI coating
Large build capacity allows printing of oversized models or multiple parts simultaneously.
Cooling System
- Part Cooling: Dual high-speed fans
- Auxiliary Cooling: Rear auxiliary cooling fans
- Hotend Cooling: Independent cooling fan system
Enhanced airflow supports stable printing at higher speeds and improved overhang performance.
User Interface & Connectivity
- Display: 4.3-inch full-colour touchscreen
- Interface Type: Detachable control screen
- Connectivity Options: USB Drive, Wi-Fi, LAN (Ethernet)
- Remote Control: Web interface via Klipper
- Supported File Formats: STL, OBJ, AMF
- Output Format: G-code
- Supported Slicers: Cura, PrusaSlicer, OrcaSlicer, and compatible software
Mechanical & Physical Specifications
- Frame Material: Reinforced aluminium extrusion frame
- Machine Dimensions: Approx. 635 × 640 × 740 mm
- Net Weight: Approx. 14.4 kg
- Structure Type: Cartesian gantry printer
- Lighting: Integrated LED light bar
Reinforced frame construction maintains stability during large, high-speed prints.
Power Requirements
- Input Voltage: 100–120V / 220–240V AC
- Frequency: 50/60 Hz
- Rated Power: 500W power supply
Filament Compatibility
Supports 1.75 mm filaments, including:
- PLA
- PETG
- TPU (flexible)
- ABS
- ASA
- Nylon (with proper setup)
- High-temperature engineering filaments
All-metal hotend enables expanded material compatibility.
Smart Features
- 121-point automatic levelling
- Power loss recovery
- Filament run-out sensor
- Input shaping calibration
- Remote monitoring via network
- Quiet stepper drivers
- High-speed Klipper ecosystem
What’s in the Box
- 1 X ELEGOO Neptune 4 Plus 3D Printer
- 1 X Magnetic PEI Spring Steel Build Plate
- 1 X Tool Kit
- 1 X Spare Nozzle
- 1 X Filament Holder
- 1 X USB Drive
- P1 X owner Cable
- 1 X User Manual
Add to your order
PLA Matte Filament
Speed Up Printing with Klipper
Massive Build Volume
Klipper High-speed MotherboardARM 64-bit 1.5G Processor
Dual-Gear Direct Extruder
Auto Bed Leveling
300°CHigh-Temp Nozzle
Pre-installed Klipper Firmware
The Neptune 4 Max comes with the powerful Klipper firmware, enabling impressive printing speeds of up to 500 mm/s (default 250 mm/s) and up to 8000 mm/s² acceleration, supporting advanced features such as input shaping and pressure advance calibration.
It is also equipped with acceleration sensors on the X and Y axes, ensuring automatic calibration and improved print quality.
Klipper High-Speed Motherboard
Neptune 4 Max adopts a Klipper motherboard and an ARM 64-bit 1.5G main frequency quad-core processor.
With pre-installed Klipper firmware, the printing speed can reach 500 mm/s (default 250 mm/s) with up to 8000 mm/s² acceleration. The 8GB ROM gives you ample storage capacity for various print files.
In addition, the printer supports input shaping and pressure advance to improve print quality and reduce issues like artifacts, filament ooze, and blobbing. With acceleration sensors on the X-axis and Y-axis to automatically calibrate resonance compensation parameters for less vibrations and precise prints.
Massive Space for Your Creations
With a spacious build volume of 420 x 420 x 480 mm, our printer allows you to bring your ambitious designs to life. Whether for large models or multiple smaller objects, this generous build volume provides ample space for your creations.
300 °C High-Temp Nozzle
The 300 °C high-temp nozzle kit features an extended hot end, a 60W ceramic heating element and a brass heating block, capable of printing various filaments including nylon.
The automatic calibration of nozzle PID parameters ensures precise temperature control for stable and consistent printing performance.
Powerful Extruder & Upgraded Hotend
The dual-gear direct extruder features a 5.2:1 reduction ratio for reliable and smooth filament extrusion, weighing only 290g. All-titanium alloy throat pipe enables fast heat dissipation and reduces nozzle clogging. The 60W high-power ceramic heating element and brass heating block provide efficient and uniform heating for quick filament melting even during high-speed printing.
The extended hotend nozzle can withstand temperatures up to 300 °C, making it capable of printing PLA, PETG, ABS, ASA, TPU, and high-temp filament nylon. (Tips: ABS and ASA filament materials are recommended to be used in conjunction with a 3D printer enclosure)
The automatic calibration of nozzle PID parameters optimizes nozzle thermal performance and temperature control, ensuring consistent and reliable printing results.
Versatile Connectivity and Control
Connect seamlessly with our printer using various options including Wi-Fi, USB flash drive, and LAN connectivity.
Enjoy the convenience of Web remote control printing and multi-machine network printing control for effortless management of your printing projects.
Just start your printing jobs with a one-click file transfer.
Explore Our Features
Efficient Cooling System
The print head incorporates 2 × 4015 thickened double-sided cooling fans and a 3010 ball-bearing blower fan for omnidirectional heat dissipation and to prevent filament warping or deformation.
The2 × 6025 ball-bearing blower fans behind the print head further enhance cooling performance by rapidly cooling the newly deposited layers.
Upgraded Dual-Sided Build Plate
The upgraded dual-sided plate ensures perfect PLA prints with a new specialized PLA Surface for excellent adhesion and minimal warping even at lower heatbed temperatures.
The original Textured PEI Surface ensures strong adhesion and easy print removal, supporting materials from PLA and TPU to high-temp options like ABS and carbon fiber.
Stable & Silent Construction
Our printer is built with a robust Z-axis configuration with dual lead screws, dual motors, and double tie rods, ensuring stability and precise vertical movement.
The Y-axis adopts two rows of 3+3V wheels and a double Y-axis profile design for smooth and reliable operation. Silent drives on all axes and POM V-guide wheels reduce noise and provide quiet, smooth, and accurate motion.
What's in the Box
Neptune 4 Max 3D Printer
Base Unit
Gantry Fame Unit
Spool Holder Arm
Touch Screen
Spiral Cable
Screen Support Block
Filament Detector
Spool Holder
The Rear Cooling Fan
Support Strut
Printhead
WiFI Antenna
Power Cable
Fasteners
Tools
User Manual
Specifications
Neptune 4 Plus
420 x 420 x 480 mm
PLA / TPU / PETG / ABS / ASA / Nylon
FDM (Fused Deposition Modeling)
430 x 430 mm
18.1 kg
CNC Machined Aluminium Extrusion
658 x 632 x 740 mm
21.8 kg
100-120V/220-240V
790 x 690 x 290 mm
Yes
WIFI, USB, WLAN
658 x 950 x 960 mm (Including Rack & Tray)
Yes
STL, OBJ
300 °C
500 mm/s
English, French, German, Russian, Italian, Spanish, Japanese, Chinese
85 °C (Ambient Temperature 25 °C)
8000 mm/s²