SKU: 14720428708

MGN12 Linear Guide Rail X-Axis Conversion Kit for Elegoo Neptune 3/4

Sale price$17.99 Regular price$19.99
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

MGN12 Linear Guide Rail X-Axis Conversion Kit for Elegoo Neptune 3/4Transform your Elegoo printer into a high speed precision machine. This conversion kit replaces the standard V wheel system with a professional MGN12H Linear Guide Rail, eliminating the common headaches of wheel wear, eccentric nut adjustments, and X axis wobble. Why Upgrade to Linear Rails? The stock rubber wheels on the Neptune series can develop flat spots and require frequent tensioning. By switching to the MGN12H industrial grade steel rail, you

Transform your Elegoo printer into a high-speed precision machine. This conversion kit replaces the standard V-wheel system with a professional MGN12H Linear Guide Rail, eliminating the common headaches of wheel wear, eccentric nut adjustments, and X-axis wobble.

Why Upgrade to Linear Rails?

The stock rubber wheels on the Neptune series can develop flat spots and require frequent tensioning. By switching to the MGN12H industrial-grade steel rail, you achieve near-zero friction and vastly improved structural rigidity—essential for the high accelerations of the Neptune 4.

Features

  • Precision Engineering: The MGN12H rail offers industrial-grade accuracy, significantly reducing "ringing" and ghosting artifacts at high print speeds.
  • Zero-Maintenance Motion: Unlike POM wheels that shed dust and wear down, this stainless steel rail is built for thousands of hours of friction-free movement.
  • Heavy-Duty Bracket: Includes a custom-engineered 2.73mm thick powder-coated sheet metal adapter designed specifically to mount your stock extruder without modification.
  • Plug-and-Play Fit: No drilling or permanent frame modifications required. The kit uses existing mounting points for a seamless transition.

Technical Specifications

Feature Detail
Rail Model MGN12H Linear Guide Rail
Total Length 320mm
Bracket Material Precision-Cut Heavy-Duty Sheet Metal
Compatibility Neptune 3, Neptune 4, Neptune 4 Pro
Incompatibility NOT compatible with Neptune 3 Pro

Installation Overview

  1. Mount the Plate: Attach the custom adapter plate to your existing extruder housing.
  2. Secure: Fix the bracket using the specialized mounting screws.
  3. Align: Slide the assembly onto the MGN12H rail and secure it to the slider block.

Note to Makers: This kit is designed to maintain your original build volume while providing a more stable platform for direct-drive extrusion.

What’s in the Box?

  • 1x 320mm MGN12H Linear Rail
  • 1x Custom Extruder Mounting Bracket
  • Complete Stainless Steel Hardware/Screw Kit
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 14720428708

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Holo
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Los Angeles, US
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Good choice!
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Beautiful box. Can last a lifetime.
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Reviewed in the United States on May 20, 2026
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Colby Pippin
Draper, US
★★★★★ 4
great product!
Size: Large, Color: Black
great size and organization options! quite sturdy and great design. would buy
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Grace
Pawtucket, US
★★★★★ 5
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Size: Large, Color: Black, Size: Large, Color: Black
This is a great jewelry box! It holds my watches, rings, bracelets, earrings, necklaces with no issues. I like that it can be customized to make certain things fit. A great purchase for anyone looking for a place to store their jewelry.
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Reviewed in the United States on February 15, 2026
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Tanisha
Birmingham, US
★★★★★ 5
Great quality
Size: Large, Color: Black
Beautiful box
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Reviewed in the United States on May 10, 2026

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