Install a 1.5” Lens: MIRA

Applies to: MIRA 5, MIRA 7 and MIRA 9

This guide shows how to install a 1.5” lens in your MIRA. A 1.5” lens gives higher detail when engraving, at the cost of some cutting output. Its shorter focal distance gives a finer point of focus and a smaller dot. It suits engraving jobs that need fine detail, such as a fine script font or photorealistic engraving.

What you need

• 2.5 mm Allen key
• 1.5 mm Allen key
• 1.5” (38.1 mm) lens
• Cloth, to catch any screws

Install the lens

1. Use a 2.5 mm Allen key to remove the lens housing from the laser head.

   

2. Carefully use a 1.5 mm Allen key to remove the screws and washers that hold the 2” lens in the housing, and set them aside. Remove the old lens and keep it somewhere safe, where it will not get dirty or scratched. Work over something that will catch a dropped screw or lens. A microfiber cloth works well and is safe to rest the lens on.

   

3. Fit the 1.5” lens convex (dome) side facing up, into the bottom of the housing, and secure it with the same screws and washers. Turning the housing upside down while you screw in the lens helps you avoid dropping the lens and its hardware.

   

   To check the direction, look at your reflection. Viewed from the top down, which for a MIRA 1.5” lens means through the housing, your reflection should be right side up, like looking into a tiny mirror.

   

4. Reinstall the lens housing in the laser head. Make sure the housing sits flush before you fully tighten the mounting bolts.

   

5. Run a test file.