Creativity Y-Axis Linear Rail Kit for Neptune 3 and 4

A Creativity Y-axis rail kit — the most common mod on a bedslinger. The bed shuttles back and forth carrying the part, its V-slot rollers wear out faster than any others, and the print starts drifting: tall models pick up waviness along Y, and the first layer squishes unevenly from one edge of the bed to the other. The kit puts rails with carriage blocks and adapter plates where the roller assembly was. It's a mod, not a factory spare.

Specifications

• Two linear rails with carriage blocks for the Y axis
• Adapter plates and hardware for the stock mounting points
• Third-party Creativity mod, not a genuine ELEGOO part
• Bed comes off and everything is recalibrated afterwards

Compatibility: ELEGOO Neptune 3, Neptune 3 Pro and Neptune 4. Sellers describe the contents differently and prices differ by almost 2× — ask how many rails and plates are actually in the box before taking the cheap listing.