MGN12 Linear Rail Drill Template (Ender 3 S1 / S1 Pro)
The 3D printed drill template has mounting pegs located at each corner, 2 small and 2 large. These match the v-wheel holes on the stock Y carriage plate. Snap them into place to secure the drill template.
⦿ For a single linear rail, use the 4 holes marked with the letters SR (single rail).
⦿ For dual linear rails, use the 8 holes marked with the letters DR (dual rails).
Drill bit: 3.0mm or 1/8" up to 3.5mm