Bambu Lab A2L vs Elegoo Neptune 4 Plus
- The Neptune 4 Plus has 15% more build volume (39.4 L against 34.3 L).
- Per litre, the Neptune 4 Plus is the cheaper space at $8 against $14.
- Only the A2L publishes a flow rate (28 mm³/s, roughly 350 mm/s of line speed), so the other's speed claim cannot be checked.
Bambu Lab
A2L
~$469 · 34.3 L
Printing big PLA and PETG parts in one piece without paying for an enclosed machine.
Elegoo
Neptune 4 Plus
~$309 · 39.4 L
Large single-piece PLA and PETG prints on the smallest possible budget.
| A2L | Neptune 4 Plus | |
|---|---|---|
| Approx. price | ~$469 | ~$309 |
| Build volumex × y × z converted to litres, so three numbers become one comparable one | 34.3 L | 39.4 L |
| Dimensions | 330 × 320 × 325 mm | 320 × 320 × 385 mm |
| Per litre | $14 | $8 |
| Type | Large-format FDM | Large-format FDM |
| Motion | bedslinger | bedslinger |
| Max flowthe hotend's rated volumetric flow — what actually caps print speed | 28 mm³/s | not published |
| Real line speedestimated from flow at a 0.4 mm nozzle and 0.2 mm layer | 350 mm/s | not published |
| Max speedthe manufacturer's claim — gantry movement, not extrusion | 500 mm/s | 500 mm/s |
| Hotend max temp | 300 °C | 300 °C |
| Bed max temp | 80 °C | 100 °C |
| Enclosure | Open frame | Open frame |
| Extruder | direct drive | direct drive |
| Auto level | strain-gauge | probe |
| Hardened nozzle | No | No |
| Multi-material | AMS lite, 4 slots | None |
| True multi-material priceprinter plus the changer it is photographed with | ~$569 | — |
| Firmware | Bambu | Klipper |
| LAN-only mode | Yes | Yes |
| Camera | Yes | No |
| Assembly | Pre-assembled | Partly assembled |
| Noise | 49 dB | — |
| Released | 2026 | 2023 |