Funssor Z-Axis Stabilizer Rod Kit for ELEGOO Neptune 3/4

Diagonal rods that tie the top of the gantry back to the printer base. Tall Neptunes ride on two uprights, and that frame flexes under hard acceleration — you see it as ringing down the walls, echo trailing off sharp corners, sometimes a layer shift on a fast travel move. The rods take the sway out of the gantry and push the frame resonance above your print speeds, which is where Input Shaper actually earns its keep. This is a Funssor aftermarket kit, not an ELEGOO factory part.

Specifications

• Pair of rigid rods with pivoting ends, one per gantry corner
• Bolts to the frame extrusion with stock hardware — no drilling
• Less ringing and corner echo at high acceleration
• Funssor aftermarket kit, not an ELEGOO original

Compatibility: ELEGOO Neptune 3, Neptune 3 Pro and Neptune 4. Check your upright height and the mounting holes in the extrusion before ordering — the Plus and Max frames use a different gantry geometry and the rods come up short.