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Elegoo Neptune 4 Max
Elegoo Neptune 4 Max
The Elegoo Neptune 4 Max is the largest machine in the Neptune line: a 2023 open-frame bed slinger with a 420×420×480 mm build volume, a 300 °C hotend, an 85 °C bed and Klipper preinstalled. It lists at $389, weighs 18.1 kg and measures 658×632×740 mm.
Owners keep arriving with the same topics: a 420×420 mm bed that is hard to level and has no adjustment in the middle, a Z offset that drifts, a locked-down Klipper build where a Fluidd update bricks the printer, a 350 W power supply feeding an enormous heater, and an 85 °C bed ceiling that keeps ABS and ASA off the table.
Related: printing materials and the Elegoo Neptune 4 Max product page.
30 Elegoo Neptune 4 Max Mods That Actually Work
Thirty upgrades for the Elegoo Neptune 4 Max: what fixes the geometry of a 420×420 mm bed, what lifts the stock Klipper limits, and which popular tips are already out of date. With prices, difficulty and sources.
Elegoo Neptune 4 Max: 24 Known Issues and Fixes
A breakdown of 24 Neptune 4 Max problems you won't meet on the smaller models: a 420×420 mm bed with no adjustment in the middle, a drifting Z offset, locked-down Klipper firmware, a 350 W power supply and a full error message reference.