MGN12 Linear Rail Precision Motion Kit for Ender 3 S1 / Pro / Plus (X-axis)

Regular price $64.99 | Save $-64.99 (Liquid error (sections/product-template line 234): divided by 0% off)

  • Upgrades the Ender 3 S1 / Pro / Plus X axis motion system for superior performance
  • Eliminates backlash and wheel binding to improve the overall print quality
  • Steel MGN12 rails and ball bearings reduce maintenance due to low wear and tear

Estimated Delivery Time is between and .


The MGN12 Linear Rail Precision Motion Kit upgrades the X axis motion system on the Creality Ender 3 S1, S1 Pro and S1 Plus 3D printers.

Traditionally used for industrial applications, linear rails are manufactured with tight tolerances, offering high rigidity, low friction and precision accuracy. In short, they are less prone to flex during use. When it comes to 3D printers, this ultimately means smooth and consistent movement that reduces, if not eliminates print defects on that particular axis.

The kit features our 4mm thick tempered aluminum back plate and adapter bracket, anodized black to seamlessly match the Ender 3 S1. Rather than replace the X axis, these bolt-on to the existing frame, providing a sturdy, yet lightweight solution to mount the MGN12 linear rail. Best of all, with a form follows function approach, there is absolutely no loss of build volume. The Sprite extruder assembly retains its original positioning to ensure full compatibility with aftermarket parts and printed designs.

Installation should take roughly 10 minutes to complete. All required parts, including the mounting hardware are included in the package. The assembly instructions can be found at the link below.

MGN12 Linear Rail Precision Motion Kit for Ender 3 S1 / Pro / Plus (X-axis) - Assembly Guide


Customer Reviews

Based on 19 reviews
Christopher Dangerfield
Amazing improvement to prints

I just installed this onto my S1 Pro, and I am realizing that the POM wheels were causing problems for leveling. I am able to get all four corners within 0.002 of each other! Printing is much quieter and smoother. I did get a 300 mm rail, but it should have been 320 mm rail. Contacted support and they are going to ship me the proper one. Overall, the products and the customer support are amazing!


Great service. All the ordered items came quickly and securely packaged. The different items were well labelled, and there was no confusion about which linear rail was for which mod. Outstanding purchase and upgrade experience. I thoroughly recommend Gulfcoast Robotics if you need to upgrade a printer they specialise in.

Amazing upgrade

Whit the X axis kit for my Ender 3 S1 Pro , i've not only improved the quality of my prints but also increased the printing speed and accelerations. The installation was straightforward, and the high-quality components made a significant difference. This substantial upgrade has enhanced precision and reduced noise and vibrations, allowing me to print faster and more efficiently. It's a crucial upgrade for those looking to maximize their Ender 3's capabilities. Great job guys

Anthony Eden
Linear Rail FULL HOUSE upgrade for Ender 3 S1 Pro

Linear Rail FULL HOUSE upgrade for Ender 3 S1 Pro
I have just fitted the X, Y and Z linear rail upgrade kits from Gulfcoast Robotics to my Ender 3 S1 Pro.
It now looks and performs like a machine designed by an ENGINEER, not like a machine designed by an ACCOUNTANT.
Many thanks to Brett for the support provided half a world away from me, here in Sydney Australia.
I am very tempted to repeat the exercise on my Ender 3 V2.


Customer service was excellent, even during a hurricane



Gulfcoast Robotics ships Monday through Friday, excluding holidays. The shipping cut-off time is 11 A.M. Eastern Standard. Orders placed after the cut-off time will be shipped the following business day. All orders are fulfilled by our warehouse located in North Port, Florida (US).

Domestic Orders

Domestic orders are shipped via USPS using the service selected at checkout. Parcels that exceed the First Class weight limit of 15.9 oz will automatically use Priority Mail. Once your package has been processed, a Tracking Number will be provided. The Shipping Confirmation is sent via e-mail and/or SMS alerts, depending on the contact information specified at checkout.

International Orders

All orders shipped to a destination outside of the United States are subject to the import duties, fees and taxes of the destination country. Delays in delivery may occur if your package is randomly selected by the Customs Department for inspection.We have no control over the process or additional charges associated with the delivery and important of your package into your country. We do not benefit in anyway from these charges and work closely with our carriers to ensure as few delays as possible.We are not responsible for any duties, fees, or taxes that are incurred during the delivery of your order/package.

MGN12 Linear Rail Precision Motion Kit for Ender 3 S1 / Pro / Plus (X-axis)

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