• 3D printer with a digital display on a white background
  • Spool of black filament on a cardboard reel with ELEGOO branding.
  • Spool of gray filament on a cardboard reel with ELEGOO branding.
  • 3D printer with a colorful robot model on a white background
  • Neptune 4 Max FDM 3D Printer with specifications on a dark background
  • Gray and red robot toy with 'Perfect every time' text above it
  • 3D printer with cooling system and text 'Comprehensive and Efficient Cooling' on a black background.
  • Klipper printer controller with text highlighting speed and features on a dark background
  • Klipper high-speed motherboard with technical specifications on a dark background
  • 3D printer with a large build volume display, showing dimensions and text about space for creations.
  • Technical diagram of a dual-gear direct extruder with high-temp nozzle kit and temperature control system.
  • Comparison chart of Elegoo Neptune 4 Pro, Neptune 4 Plus, and Neptune 4 Max 3D printers with specifications.
  • Two black surfaces labeled 'Textured PEI Surface' and 'Specific PLA Surface' on a white background.
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Elegoo Neptune 4 Max FDM 3D Printer Bundle

Elegoo Neptune 4 Max FDM 3D Printer Bundle

$445.00 USD
$550.00 USD $445.00 USD
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Shipping calculated at checkout.
  • Massive 420 × 420 × 480mm build volume for full-scale prints.
  • Up to 500mm/s print speed powered by Klipper firmware.
  • Advanced tuning with input shaping and pressure advance out of the box.

The Elegoo Neptune 4 Max, a large-format FDM printer built for makers who think big. With a build volume large enough for full-size helmets, oversized props, and large functional parts in a single run, it pairs serious scale with Klipper-powered speed and advanced tuning — no firmware swaps, no compromises.

  • Compatible with PLA, PETG, and TPU (1.75mm).
  • Ideal for cosplay armor, architectural models, batch printing, and large functional parts.
  • Large-format scale without sacrificing speed or print quality.

Shipping

We ship from our warehouse in the U.S.A. Our deliveries usually take 3 business days. Printer orders have standard shipping for $50.00 within the mainland US. Please see our shipping policy.

Returns

7-day returns policy, starting from the moment you receive your order.

Product Description

Big Prints. Fast Speeds. Klipper-Powered.

The Elegoo Neptune 4 Max is built for makers who think on a large scale. With a 420 × 420 × 480 mm build volume — big enough to print full-size helmet shells, large architectural models, and oversized functional parts in a single run — it removes the size constraints that hold most desktop FDM printers back.

And it doesn't sacrifice speed to get there. The Neptune 4 Max reaches print speeds of up to 500 mm/s with an acceleration of 8,000 mm/s², powered by Klipper firmware straight out of the box. Klipper gives you direct access to advanced tuning, input shaping, and pressure advance — the kind of control that experienced makers and tinkerers rely on to push print quality and speed to their limits. If you know Klipper, you know exactly what that means. If you're new to it, you're about to.

Designed for makers and creators who need room to build — perfect for:

  • Large cosplay armor, helmet shells, and full-scale prop builds
  • Oversized architectural models, interior design mockups, and scale prototypes
  • Full-size RC car bodies, drone airframes, and large mechanical assemblies
  • Batch printing — run multiple parts simultaneously across the full build plate
  • Large decorative pieces, sculptures, and home decor that can't be split across multiple prints
  • Functional large-format parts: panels, enclosures, frames, and structural components
  • Any project that's been waiting for a printer big enough to handle it in one piece

Printer Compatibility: Compatible with standard 1.75mm FDM filaments, including PLA, PETG, and TPU.

Technical Specifications

  • Printing Technology: FDM
  • Build Volume: 420 × 420 × 480 mm
  • Print Speed: Up to 500 mm/s
  • Max Acceleration: 8,000 mm/s²
  • Firmware: Klipper
  • Filament Diameter: 1.75mm

Warranty

All unopened consumable products come with a 30-day warranty.

Help

Any questions at all, please reach out to us on our contact page.

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