Pair of 300 mm MGN12H Z0 preload black-steel linear rails for BeltDrivenEnder3 Ender 3 Z-axis conversionPair of 300 mm MGN12H Z0 preload black-steel linear rails for BeltDrivenEnder3 Ender 3 Z-axis conversion
Pair of 300 mm MGN12H Z0 preload black-steel linear rails for BeltDrivenEnder3 Ender 3 Z-axis conversion

dfh.fm

BeltDrivenEnder3 by kevinakasam Black Steel Linear Rails Kit

$50.00
Shipping calculated at checkout.

Black-steel Z-axis linear rail pair for the BeltDrivenEnder3 mod. This kit supplies the two 300 mm MGN12H rails with Z0 preload used when adding linear rails to kevinakasam’s BeltDrivenEnder3-style Ender 3 Z-axis build.

Why use these rails

  • Matched pair: two 300 mm MGN12H rail-and-carriage assemblies for the left and right Z sides.
  • Z0 preload: light preload for smooth motion where low drag matters more than heavy machine-tool loading.
  • Black steel option: a lower-cost alternative to the 440C stainless BeltDrivenEnder3 rail kit.

Specifications

  • Quantity: 2 rails, each with MGN12H carriage
  • Rail length: 300 mm
  • Rail size: MGN12H
  • Preload: Z0
  • Material / finish: black steel

Fitment

Intended for Ender 3-family BeltDrivenEnder3 builds based on kevinakasam’s open-source mod, which converts the Ender 3 Z axis from a leadscrew to synchronized belts. The official project notes compatibility with Ender 3, Ender 3 V2, and Ender 3 Pro; it is not for Ender 3 S1.

Pairs with

What this is not

  • Not the complete BeltDrivenEnder3 conversion kit — belts, printed parts, fasteners, bearings, rods, and electronics are not included unless separately purchased.
  • Not stainless steel. Choose the 440C stainless version if corrosion resistance is the priority; keep black-steel rails clean, lubricated, and dry.
Shipping & Returns

Returns:

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Shipping:

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If there is a problem with an international order, it is my choice to refund part or all of the order, or send a replacement. 

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