Laser engraving is a great way to work with a lot of materials, but holding thin materials in place is often a challenge.

I've been working with a thin 3M 7847 laser marking tape, and tried various ways to hold it still while I was engraving it.

What I finally settled on was a simple jig that I made using two very thick 18" straight edges and a piece of thick acrylic.

I use a very light temporary repositionable spray adhesive on the acrylic to hold the tape in place.

I also made a simple template which I engraved onto the jig itself. This means that I can push the jig flush against the edge of the engraver to get consistent positioning of the origin each time.

I made it at Techshop!

Step 1: Material Acquisition

I used two Stanley 24" straight edges with fluid levels. They're about an inch thick, and are straight and level, as expected.

I also used a piece of green acrylic, 24"x10", that I bought at Techshop. I used ~1/4" thick acrylic so that it would be rigid.

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