Laser cut & engraved mirror acrylic

I got my hands on some mirror acrylic yesterday, so being an engineer I had to have a play with it on the laser cutter and see what all the fuss is about. When I say fuss many laser professionals struggle to cut mirror acrylic well. My first few goes were a disaster. The edges cracked, the mirror delaminated and fogged up.

After about 4 hours of mucking around with settings and trying different techniques I finally got a consistent repeatable result. Check out the images below.

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These cards are engraved on the back to give a clean single image. The top left card has the engraving painted black. Top right no paint. The bottom card is painted with a translucent green which looks 'magic".

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Here is another angle to show the mirror quality which is really very good. I think it is an aluminium (aluminum) metalisation as silver would probably be too expensive. The metal is very conductive, it measures about 1 ohm per centimeter so there must be some cool things you could do with this property. You could make a mirror electronic circuit! The mirror backing can also be removed with paint remover to reveal a first surface mirror.

 

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The cat snuck his nose in for a picture!

If you need some mirror acrylic cut or engraved on Auckland's North Shore or you are in Auckland or New Zealand, give me a call (click the "about" page for my details). I would be very happy to work on your next design.

Blog by Keith Colson

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