ELEGOO Stepper Motor for Neptune 3 Series

The factory ELEGOO stepper for the Neptune 3 Pro, Neptune 3 Plus and Neptune 3 Max. It arrives with the GT2 pulley already on the shaft, so it swaps in as one piece. The usual reason to buy one is layer shifting: after a ten-hour print the part comes off as a staircase, the axis feels notchy when you push it by hand, and the motor stays hot even while idle. Max machines chew through them faster — that bed travels 420 mm and carries a lot of mass.

Specifications

• NEMA17 frame, 1.8° step angle
• GT2 pulley pre-fitted at the factory
• JST-XH connector, 24 V from the mainboard
• Genuine ELEGOO replacement part

Compatibility: ELEGOO Neptune 3 Pro, Neptune 3 Plus and Neptune 3 Max. The seller doesn't list the plain bowden-fed Neptune 3 — if that's your machine, check body length, pulley tooth count and connector against your own motor first.