Following on from New 3D Printer, November 2025 we bought a Elgoo Neptune 4 max.

Elgoo Neptune 4 max

• https://uk.elegoo.com/products/neptune-4-max-fdm-3d-printer
• £285
• 420 × 420 × 480 mm Build Volume
• Maximum Acceleration 8,000 mm/s²
• Filament Diameter 1.75 mm
• 500 mm/s Max Speed
• Filament Compatibility: PLA / TPU / PETG / ABS / ASA / Nylon

Getting started

• Unboxing & Assembly video
• How to Level the Bed video
• How to Resolve a Clogged Nozzle video
• How to replace the nozzle video
• User Manual v1.8

Really getting started

Workflow options

1. Upload a file to the web interface
2. Put a file on a USB stick, insert it into the printer and select it with the hand held controller
3. Probably some other thing

There is a web interface at 192.168.1.61.

It looks like this:

There is a little draw in the front left for tools.

For slicing software, Cura from https://github.com/Ultimaker/Cura seems to be best. Recent cura has built in profile for this printer. Cura AppImage has a missing lib for running on recent debian: https://theitgarage.wordpress.com/2024/12/22/running-cura-5-9-on-debian-unstable-sid-and-debian-13-trixie/

Benchy

Gcode for a benchy that should print in about 30mins: https://user.fm/files/v2-fdad9e17f841f25407e44c9d3979fdc9/EN4MAX_3DBenchy.gcode

This was sliced with “Extra Fast - Draft” to optimise for print time so quality isn't going to be great.

This should come out something like this: https://photos.app.goo.gl/EDvE2rFbJYfZoEMo7

Things that benchy tests (beyond just if you can print anything): https://www.3dbenchy.com/features/

Pros

• Some members ones from this range already, so in-house knowledge
• Big print size, so useful for people who have a smaller one at home
• Open source software for the printer

Cons

• My (Alex) experience of Neptune Pro 3 - making sure the bed is evenly heated before calibration else it doesn't work. So a bigger bed on NP4 might make this more of a hassle? Looking into this, it seems like care with bed heating and calibration is needed.