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Neptune 4 Plus
The Elegoo Neptune 4 Plus is a FDM 3D printer released in 2023 by Elegoo, with a build volume of 320×320×385 mm and MSRP of €239. Claimed maximum speed: 500 mm/s.
Manufacturer's suggested retail price (MSRP). Not the store price — the actual price may vary.
Our take on the Neptune 4 Plus
The Neptune 4 Plus is the large version of Elegoo's Neptune 4 series: a 320 × 320 × 385 mm volume, Klipper with input shaping and pressure advance, up to 500 mm/s, a 300 °C nozzle, a dual-gear direct extruder and 121-point automatic levelling. Elegoo adds accelerometers on the X and Y axes.
Those accelerometers, according to Tom's Hardware, let you run Klipper's resonance calibration without extra accessories. Size-wise it sits between the Neptune 4 Pro and the Neptune 4 Max; if you want a similar volume with a built-in camera, the Sovol SV06 Plus ACE includes one.
Worth knowing: it's open-frame, so for ABS or ASA in large parts an enclosed machine is better. If it's your first large printer, go through why prints don't stick: with large beds, cleanliness and levelling matter even more.
Written from its specs and the sources cited at the end of this page; we haven't tested it in person.
Technical specifications
| Technology | FDM |
|---|---|
| Build volume | 320×320×385 mm |
| Weight | — |
| Max speed | 500 mm/s |
| Max acceleration | 12,000 mm/s² |
| Max nozzle temp | 300 °C |
| Nozzle material | — |
| Drive | direct |
| Flow rate | — |
| Max bed temp | 110 °C |
| Bed material | PEI |
| Auto-leveling | Auto 121-point (11x11) |
| Enclosed | No |
| Heated chamber | No |
| AMS compatible | No |
| WiFi | Yes |
| Camera included | No |
| Official slicer | Cura |
| OrcaSlicer support | — |
| Power | — |
| Noise | — |
What materials can the Neptune 4 Plus print?
This comes from four facts on its spec sheet: the nozzle reaches 300 °C, the bed 110 °C, and the machine is open-frame with a direct-drive extruder. Those four facts decide most of the list: nozzle temperature sets the ceiling on what you can melt, the bed decides whether the first layer sticks, the enclosure keeps large parts from warping, and the extruder type rules flexibles. We don't test the machine — this is guidance derived from verified data, not a guarantee.
In short: it prints PLA, PETG, TPU (flexible) without a fight, and it can reach ABS, ASA, Nylon (PA), Policarbonato (PC) with conditions — the detail for each is below.
| Material | Prints it? | Why |
|---|---|---|
| PLA | Yes | Yes. PLA has no special needs: any FDM printer like the Neptune 4 Plus prints it out of the box. |
| PETG | Yes | Yes. With a nozzle up to 300 °C and a bed up to 110 °C it comfortably meets PETG's needs. |
| TPU (flexible) | Yes | Yes. It has a direct-drive extruder, ideal for flexibles; prints TPU well (go slow). |
| ABS | With caveats | With caveats. It reaches 300 °C, but it's open-frame: ABS can warp and ventilation is advised. Doable in a draft-free spot or by adding an enclosure. |
| ASA | With caveats | With caveats. It reaches 300 °C, but it's open-frame: ASA can warp and ventilation is advised. Doable in a draft-free spot or by adding an enclosure. |
| Nylon (PA) | With caveats | With caveats. It reaches 300 °C but is open-frame; Nylon warps in drafts and absorbs moisture. Enclosure + drying almost mandatory. For carbon-fibre variants, use a hardened-steel nozzle. |
| Policarbonato (PC) | With caveats | With caveats. It has the temperature (300 °C) but is open-frame; PC warps badly without an enclosure. Only with one added. For carbon-fibre variants, use a hardened-steel nozzle. |
Need the materials it struggles with? These printers handle them
ABS, ASA, Nylon (PA), Policarbonato (PC)
Popular comparisons
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Sources & references
Specs cross-checked against these public sources:
- Elegoo EU official product pagemanufacturer
Specs checked against the sources cited above on 19/06/2026. Confidence in the data: high.