Elegoo Neptune 4 Plus vs Elegoo Centauri Carbon 2
- The Neptune 4 Plus has 135% more build volume (39.4 L against 16.8 L).
- Per litre, the Neptune 4 Plus is the cheaper space at $8 against $21.
- Only the Centauri Carbon 2 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 Plus
~$309 · 39.4 L
Large single-piece PLA and PETG prints on the smallest possible budget.
Elegoo
Centauri Carbon 2
~$349 · 16.8 L
Enclosed multi-colour printing across the full materials list without paying Bambu prices.
| Neptune 4 Plus | Centauri Carbon 2 | |
|---|---|---|
| Approx. price | ~$309 | ~$349 |
| Build volumex × y × z converted to litres, so three numbers become one comparable one | 39.4 L | 16.8 L |
| Dimensions | 320 × 320 × 385 mm | 256 × 256 × 256 mm |
| Per litre | $8 | $21 |
| Type | Large-format FDM | 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 | 350 °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 | CANVAS, 4 slots |
| True multi-material priceprinter plus the changer it is photographed with | — | ~$399 |
| Firmware | Klipper | Klipper |
| LAN-only mode | Yes | Yes |
| Camera | No | Yes |
| Assembly | Partly assembled | Pre-assembled |
| Noise | — | — |
| Released | 2023 | 2026 |