Elegoo Neptune 4

Elegoo's budget workhorse was one of the first cheap printers to ship with real Klipper underneath rather than Marlin with a speed claim bolted on, and that is still the reason to look at it: input shaping and pressure advance are doing actual work at $219. A 121-point probe mesh handles a bed that is larger than the Ender-class competition at 225 × 225 × 265 mm, and the 110 °C bed is hotter than most rivals in this bracket, which helps PETG stick without a raft. It arrives partly assembled and needs the gantry bolted on. The Neptune line has since been overtaken inside Elegoo's own range by the Centauri machines, which are enclosed CoreXY designs for not much more money, so this now reads as the budget option rather than the interesting one. No flow figure is published.

Approx. price: ~$219
Build volume: 13.4 L
Per litre: $16
True multi-material price: No changer offered

Real speed ceiling

Not published

Elegoo does not publish a volumetric flow rate for the Neptune 4, so its 500 mm/s claim cannot be checked against what the hotend can actually melt. We do not estimate one.

LAN-only modeKlipper firmware

Best forA cheap, fast first printer for someone who would rather tinker with Klipper than with a gantry.

Specifications

Build volume: 225 × 225 × 265 mm
Volume: 13.4 L
Motion: bedslinger
Max speed: 500 mm/s
Acceleration: 8,000 mm/s²
Max flow: Not published
Hotend max temp: 300 °C
Bed max temp: 110 °C
Enclosure: Open frame
Extruder: direct drive
Auto level: probe
Hardened nozzle: No
Input shaping: Yes

Materials, control and build

Multi-material: None offered
Firmware: Klipper
LAN-only mode: Yes
Cloud: Optional
Camera: No
Assembly: Partly assembled
Weight: 9.2 kg
Footprint: 475 × 445 × 515 mm

Features

Klipper firmware with input shaping and pressure advance
225 × 225 × 265 mm — larger than most printers at this price
121-point automatic bed-levelling mesh
110 °C heated bed

What it does well

Genuine Klipper with input shaping rather than a firmware speed claim with nothing behind it
110 °C bed and a 300 °C hotend cover PETG and PLA-CF comfortably at this price
Bigger build volume than the Ender-class machines it competes against
Dense 121-point levelling mesh copes well with a bed that is not perfectly flat

Where it gives ground

Superseded inside Elegoo's own range by the enclosed Centauri machines for not much more
Partial assembly required, and the gantry alignment matters
No enclosure, camera or multi-material option
No published flow rate behind the 500 mm/s claim
Stock nozzle is brass, so abrasive filament wears it fast

The points above are read off published specifications, not from owner reports.

What owners report

No owner discussion has been collected for the Elegoo Neptune 4 yet. Everything on this page comes from the manufacturer’s published specifications and the sources listed under how we compare. We would rather say so than write sentiment we have not read.