Previously, a 4” Lens Kit was required with the Mira series of lasers. However with new innovations of the Mira S line models, there is a much simpler solution to this.
All you need is the 4” lens with 20mm diameter.
Then prepare a clean surface to set your parts on. Remove the existing lens.
Re-install the lens holder without a lens.
Unscrew the “Pass-through” Lens holder.
Unscrew the black ring, and remove the “pass-through” lens.
Install the 4” Lens in it’s place. Be weary of the curve direction of the lens.
Then install that assembly back into the entry hole to the laser head assembly.
If looking at it from the front, the lens should curve like so: (
Your auto-focus height will now require adjustment. Instead of the approximate 9mm used for a 2” lens. You will now require somewhere between 16.5mm and 17mm. External air assist of 30psi is recommended to pair with this 4” lens for best results.
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