PRODUCT DETAILS
The MGN12 Linear Rail Precision Motion Kit replaces the Y axis motion system on the Creality Ender 3, Ender 3 Pro and Ender 3 V2.
Traditionally found on high-end 3D Printers, MGN12 linear rails have tight tolerances, low friction and require minimal maintenance. The rigid stainless steel rail and ball bearing guide block improve accuracy and offer remarkably smoother movement. Mounted atop or the sides of V Slot extrusion (depending on kit), it also eliminates concerns of poor machining that can otherwise impede linear movement.
This is in contrast to the stock Delrin v-wheel rollers used on Creality 3D printers. A POM plastic that significantly deteriorates over time, they develop flat spots that bump and shift as the heated bed moves. This creates inconsistencies that reflect in the printed object. V-slot extrusions which aren't machined perfectly straight will further accelerate the wear and tear on wheels.
MGN12 Kit Features
- High Positional Accuracy: Linear rails are extremely stiff, producing far less flex than other solutions like v-wheels or linear rods. This ultimately reduces backlash and ringing artifacts that will yield higher quality prints.
- Long Life: Comprised of all metal components, these are extremely durable, experiencing little to no wear over time. Compared to hard plastic v-wheels that degrade from repeat use, a properly lubricated linear rail will continue to offer high performance for the life of the machine.
- Low Maintenance: Machined from hardened or stainless steel, MGN12 linear rails are resistant to oxidation and corrosion. After being packed with grease, they have a low friction coefficient that greatly decreases wear on parts.
Ender 3 Kit

The original Creality Ender 3 is equipped with a narrow 20mm wide Y axis. To compliment the existing frame, the Ender 3 MGN12 Kit features a single Linear Rail, center mounted on top of the extrusion to achieve high performance and stability.
Package also includes CNC machined front and rear aluminum brackets, 100cm Steel Core GT2 belt and all necessary mounting hardware for installation.

Ender 3 Pro / V2 Kit

By comparison, the Ender 3 Pro and Ender 3 V2 Y axis has twice the width (40mm). For this reason, the MGN12 Kits can be purchased in either a single or dual rail configuration, the latter offering better weight distribution and improved stability.
Because the MGN12 Linear Rails mount on the side of the Y axis, these kits reuse most of the original components, offering a quick and simple installation. CNC machined aluminum guide brackets and hardware are included.
Standard Kit

The Standard Kit includes everything needed to complete the installation, excluding the Modular 3-Point Y Carriage Plate.
This is a Do-it-yourself (DIY) package, intended for customers who have previously purchased our Modular Y Carriage, or those that are comfortable making small modifications to their existing Y Carriage. A drill template will be provided, mapping out the necessary hole pattern for mounting the linear rail guide blocks.

Complete Kit

The Complete Kit includes everything in the Standard Kit, as well as our Modular 3-Point Y Carriage Plate.
As the title suggests, it features all parts needed to complete the MGN12 Linear Rails upgrade on the specified 3D Printer.
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SHIPPING & RETURNS
Shipping
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.