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Elegoo
Elegoo Neptune 4 Plus
FDM filament printer. Build volume: 320 × 320 × 385 mm.
Assessed from documentation Updated on October 4, 2026
How to recognize it: Check the full model name “Neptune 4 Plus” on the label or in device information. Suffixes and revisions identify different models; check the source before selecting parts.
Technical specifications
Manufacturer specifications for the listed configuration. Notes identify accessories, measurement conditions and calculated values.
Technology and structure2
| Technology | FDM |
|---|---|
| Build area shape | Rectangular |
Build area and volume4
| Build area X | 320 mm |
|---|---|
| Build area Y | 320 mm |
| Build area Z | 385 mm |
| Build volume | 39.424 L Calculated from nominal X × Y × Z dimensions. |
Temperatures2
| Maximum hotend temperature | 300 °C |
|---|---|
| Maximum bed temperature | 100 °C |
Speed and performance2
| Maximum travel speed | 500 mm/s |
|---|---|
| Maximum acceleration | 12,000 mm/s² |
Features3
| Automatic leveling | Yes |
|---|---|
| Filament runout sensor | Yes |
| Power loss recovery | Yes |
Connectivity1
| Firmware | Klipper |
|---|
Materials1
| Manufacturer-listed materials | PLA, TPU, PETG, ABS, ASA, PA |
|---|
Dimensions and weight4
| Machine width | 578 mm |
|---|---|
| Machine depth | 533 mm |
| Machine height | 640 mm |
| Net weight | 14.4 kg |
Technical sources: Neptune 4 Plus — documentazione ufficiale · Neptune 4 Plus — specifiche tecniche ufficiali
Undocumented specifications (33)
- Kinematics: Not documented
- Shared dual-nozzle area X: Not documented
- Shared dual-nozzle area Y: Not documented
- Shared dual-nozzle area Z: Not documented
- Enclosed as standard: Not documented
- Installed toolheads / extruders: Not documented
- Extruder type: Not documented
- Filament diameter: Not documented
- Standard nozzle: Not documented
- Available nozzle diameters: Not documented
- Nozzle material: Not documented
- Build plate: Not documented
- Chamber heating: Not documented
- Maximum chamber temperature: Not documented
- Advertised maximum print speed: Not documented
- Advertised typical print speed: Not documented
- Maximum volumetric flow: Not documented
- Minimum layer thickness: Not documented
- Maximum layer thickness: Not documented
- Multicolor system: Not documented
- Colors with documented configuration: Not documented
- Camera: Not documented
- Air filtration: Not documented
- Control display diagonal: Not documented
- Control display: Not documented
- Connectivity: Not documented
- Listed slicers: Not documented
- Internal storage: Not documented
- Rated power: Not documented
- Power supply: Not documented
- Advertised noise: Not documented
- Leveling method: Not documented
- Advertised Z accuracy: Not documented
No published compatibility for this printer.
Related guides
General guides help identify print defects. Follow the manual for your exact model and variant for disassembly, maintenance and calibration.
- First layer not sticking: causes and checks
How to recognise a first layer that is too high, too squished or uneven and fix it in order: plate cleaning, slicer profile, leveling, Z offset. Based on official guidance from Bambu Lab, Prusa, Creality, Elegoo and Anycubic.
- Warping: corners lifting off the bed with ABS, ASA, PETG and PLA
Why corners curl and how to reduce it: plate cleaning, drafts, enclosure, bed temperature, brim and ears, cooling and glue. Based on official guidance from Bambu Lab and Prusa and on user experience.
- Clogged nozzle and under-extrusion: find where the blockage is and fix it
How to tell a blockage in the PTFE tube, the extruder or the hotend apart, when to use the needle and cold pull, how to recognise heat creep, and when replacing the nozzle, PTFE tube or gears is actually justified.
- Wet filament: recognise it, dry it and store it
Symptoms of filament that has absorbed moisture, the most sensitive materials, how to dry following Bambu Lab and Prusa official tables without damaging spool or filament, and how to keep it dry.
- Stringing and oozing: how to get rid of filament strings and blobs
How to recognise stringing and oozing, the main causes (wet filament, temperature, retraction, travel moves, nozzle) and the checks to do in order, with official guidance from Prusa, Bambu Lab, Creality and Elegoo.
- Layer shifting: causes and checks in order
Why layers shift along X or Y and how to find the cause: obstructions, collisions with curled parts, belts, pulleys, speed, electronics cooling and motors, with official guidance from Prusa, Bambu Lab, Creality, Elegoo and Anycubic.
- Ringing and ghosting: getting rid of ripples on FDM print walls
What ringing (or ghosting) is, why it appears after corners and lettering, and how to fix it in order: printer surface, loose parts, belts, lubrication, vibration calibration (input shaping), speed and acceleration.
Official documentation
Manuals and guides published by Elegoo. Links go to the manufacturer’s site; we consulted them on the date shown.
- Support page
-
- Elegoo, 4 models — how to identify the version (Ribbon-Cable or Type-C) — English, accessed on October 5, 2026
- Support hub page (ELEGOO Wiki) — English, accessed on October 5, 2026
- User manual
-
- User manual (EN, V1.6) — English, accessed on October 5, 2026
- User manual (IT, V1.6) — Italian, accessed on October 5, 2026
- Quick start guide
-
- Notes to read before first use (Must Read) — English, accessed on October 5, 2026
- Troubleshooting
-
- Neptune 4 Plus, Neptune 4 Pro — clogged nozzle (troubleshooting) — English, accessed on October 5, 2026
- First layer issues — English, accessed on October 5, 2026
- Print quality troubleshooting — English, accessed on October 5, 2026
- Neptune 4 Plus/Max — wobbling heated bed (POM wheels) — English, accessed on October 5, 2026
- Neptune 4 Plus/Max — fan not spinning — English, accessed on October 5, 2026
- Parts replacement
-
- Neptune 4 Plus/Max — nozzle replacement — English, accessed on October 5, 2026
- Neptune 4 Plus/Max — nozzle assembly replacement (hotend) — English, accessed on October 5, 2026
- Neptune 4 Plus/Max — X-axis belt replacement — English, accessed on October 5, 2026
- Neptune 4 Plus/Max — Y-axis belt replacement — English, accessed on October 5, 2026
- Firmware and software
-
- Neptune 4 Plus+ (Type-C) — firmware update (OTA and manual) — English, accessed on October 5, 2026
- Neptune 4 Plus/Max (ribbon cable) — mainboard and touch screen firmware update — English, accessed on October 5, 2026
- Technical specifications
-
- Official technical specifications — English, accessed on October 5, 2026
Sources
- Neptune 4 Plus — official documentation — Elegoo, accessed on October 4, 2026
- Neptune 4 Plus — official technical specifications — Elegoo, accessed on October 5, 2026