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 Aug 2 - Aug 7

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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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TL Hamm
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I’ve had this toy for a while now and my dog absolutely loves it. I frequently bring it to the dog park with us and it’s also loved by other dogs. The ball is pretty durable. My dog is not a big chewer but other dogs that play and chew on it haven’t been able to pierce it yet. The handles are sturdy and also still intact. Overall a little pricey but in my opinion worth it.
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Reviewed in the United States on April 30, 2026
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Zachary Small
Lake Worth, US
★★★★★ 5
fun for dog
Color: Red-Blue, Size: Medium Size 2 (6")
popped kinda easy but my dog is still having fun with it
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Sonya Lucatero
San Leandro, US
★★★★★ 5
Best ball ever!
Color: Red-Blue, Size: Large Size 3 (8"), Color: Red-Blue, Size: Large Size 3 (8")
Oh my goodness. My cane corso (15 mos) LOVES this ball. It’s easy for them to pick up because of all the little handles sewn into the ball. It’s easy to throw as well. The only thing is he likes to chew them off if he gets free time with the ball. The ball itself is very sturdy. highly recommend, and I’ll be ordering more. We play with this every morning and he’s so excited to take it outside.
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Reviewed in the United States on May 26, 2026
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Janelle Fairbanks
Carnegie, US
★★★★★ 4
Best for a single dog but quality products
Color: Lake Blue, Size: Large Size 3 (8")
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Reviewed in the United States on January 15, 2026

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