3D printer Elegoo Neptune 4 Pro with Dual Z-axis and silent stepper drivers

The ELEGOO Neptune 4 Pro 3D Printer (model M6-512) is an FDM desktop printer built on Klipper firmware with a 225 × 225 × 265 mm build volume and a maximum nozzle temperature of up to 300°C. It supports a wide range of filaments including PLA, PETG, ABS, TPU and nylon, and features a powerful direct extruder with dual gears, automatic 121-point bed leveling, and LAN/USB file transfer options.

Advantages

High maximum print speed up to 500 mm/s with a recommended 250 mm/s for balance between speed and quality; advanced motion control with Input Shaping and Pressure Advance for smoother surfaces; dual-zone heated bed (150 W + 100 W) for efficient, stable heating; reinforced metal X and Y guides with dual U-shaped ball bearings for improved rigidity and precision; improved hotend with copper-titanium thermal tube and nozzle rated to 300°C; filament sensor and print-resume function for uninterrupted jobs; detachable 4.3" touchscreen and multiple cooling fans for reliable operation.

Key specifications

• Manufacturer: ELEGOO
• Model: M6-512
• Build volume: 225 × 225 × 265 mm
• Maximum printing speed: 500 mm/s (recommended 250 mm/s)
• Firmware: Klipper
• Processor: ARM 64-bit quad-core (1.5 GHz)
• Extruder: Improved direct-type with dual gears (291 g)
• Nozzle max temperature: up to 300°C
• Heated bed: Dual-zone 150 W + 100 W, intelligently zoned
• Platform leveling: Automatic 121-point (11×11) + assisted manual knobs
• X/Y axis guides: All-metal guides with dual U-shaped ball bearings
• Cooling fans: two double-sided 4015 fans and four 4020 fans, max 10,000 rpm
• Motion features: Input Shaping, Pressure Advance
• File transfer: LAN + USB
• Supported materials: PLA, ABS, TPU, PETG, Nylon

How to use

Place the printer on a stable, level surface and connect it to power and your local network or a USB device. Load filament into the improved direct extruder and preheat the nozzle and bed to temperatures appropriate for the chosen material (up to 300°C for high-temperature filaments). Use the detachable 4.3" touchscreen to preview files and start prints, or transfer G-code via LAN/USB. Rely on automatic 121-point bed leveling before your first layer; fine adjustments can be made with the manual knobs under the build plate. Monitor prints visually and by the nozzle LED lighting; use filament sensor and resume feature to recover from interruptions.

Recommendations

For best results, start with PLA or PETG at moderate speeds (around 60–120 mm/s) to calibrate extrusion and cooling, then increase speed as you verify dimensional accuracy. Use the automatic leveling before each significant print and ensure good adhesion by cleaning the build surface. Keep firmware and slicer settings updated for Klipper-based profiles and take advantage of Input Shaping and Pressure Advance when printing at higher speeds.