Elegoo Neptune 4 Pro vs Elegoo Centauri Carbon
- The Centauri Carbon has 25% more build volume (16.8 L against 13.4 L).
- Per litre, the Neptune 4 Pro is the cheaper space at $17 against $18.
- Only the Centauri Carbon publishes a flow rate (32 mm³/s, roughly 400 mm/s of line speed), so the other's speed claim cannot be checked.
Elegoo
Neptune 4 Pro
~$229 · 13.4 L
The best mechanical build available under $250, if an enclosure is not needed.
Elegoo
Centauri Carbon
~$299 · 16.8 L
The cheapest way into enclosed CoreXY printing with a hardened nozzle already fitted.
| Neptune 4 Pro | Centauri Carbon | |
|---|---|---|
| Approx. price | ~$229 | ~$299 |
| Build volumex × y × z converted to litres, so three numbers become one comparable one | 13.4 L | 16.8 L |
| Dimensions | 225 × 225 × 265 mm | 256 × 256 × 256 mm |
| Per litre | $17 | $18 |
| Type | FDM bedslinger | FDM enclosed |
| Motion | bedslinger | CoreXY |
| Max flowthe hotend's rated volumetric flow — what actually caps print speed | not published | 32 mm³/s |
| Real line speedestimated from flow at a 0.4 mm nozzle and 0.2 mm layer | not published | 400 mm/s |
| Max speedthe manufacturer's claim — gantry movement, not extrusion | 500 mm/s | 500 mm/s |
| Hotend max temp | 300 °C | 320 °C |
| Bed max temp | 110 °C | 110 °C |
| Enclosure | Open frame | Enclosed, unheated chamber |
| Extruder | direct drive | direct drive |
| Auto level | probe | strain-gauge |
| Hardened nozzle | No | Yes, as standard |
| Multi-material | None | None |
| True multi-material priceprinter plus the changer it is photographed with | — | — |
| Firmware | Klipper | Klipper |
| LAN-only mode | Yes | Yes |
| Camera | No | Yes |
| Assembly | Partly assembled | Pre-assembled |
| Noise | — | — |
| Released | 2023 | 2025 |