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 11 - Jul 16

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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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Reviewed in the United States on March 7, 2024
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King C
Belleville, US
★★★★★ 5
Great Value
Good quality, great value! A little big for my use.
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Reviewed in the United States on January 5, 2026
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TootsieEdwards
Lowell, US
★★★★★ 5
The most complete, compact wallet I've ever seen!!
This is the most complete, compact wallet I have ever seen, there is a space for everything, even coins. I ordered 2, one for me and one for him. Mine does not fit in my purse, it's 10 inches long. I'm debating, should I return mine or keep it. I've searched for one similar, less than 10 inches, and found nothing. He is so excited and happy, he has already filled his up. This is the only wallet one needs AND it's RFID blocking.
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Reviewed in the United States on March 18, 2026
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Dannette
Massapequa, US
★★★★★ 5
Useful for traveling
Color: White/grey-Type L
Worked great in Italy visit!
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Reviewed in the United States on April 26, 2026
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ccs
Battle Creek, US
★★★★★ 5
Excellent
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Perfect size for several devices. Minimal packing space . Worked great for 1 month in Italy. I’m throwing my old ones out.
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