1. A dozen glass tumblers ($10 at Bed Bath and Beyond)
2. Art work (My friend texted me a line drawing me she made, and I cleaned it up in photoshop and illustrator)
3. Lasercutting machine with Rotary Attachment (which requires a special class at Techshop)
This video gives you a quick overview of what you'll be doing.
I made it at SF Techshop!
Cleanup In Photoshop
I opened it in Photoshop, used the magic wand tool to remove the tan background, zoomed into clean up the edges with the erase tool.
I imported the image into Illustrator. When you open illustrator you want to make the canvas size the same as the surface area of your glass. I'll talk about that in the next step.
Step 2: Sideways in Illustrator
The key thing to understand is this; the artwork prints sideways.
Watch this video to see what I mean....
In other words, once you're in illustrator, you want to orient your artwork like my second image.
Normally when I lasercut on plywood I leave my "canvas size" set at 24" x 18" (the maximum size of the lasercutting bed. But I was told that for the rotary tool you definitely want to make the canvas size match the approximate size of your material.
Note: There is some distortion that happens as the tumbler slopes in and therefore a rectangle for artwork isn't totally accurate.
I found that by using thinner fonts (as opposed to chunky ones) that the distortion was less noticable and I didn't have to distort my text to make it legible. I ruined a few glasses trying to use a chunky vintage font.
Step 3: The Rotary Attachment
Turn the Laser Machine power OFF.
Load in the rotary attachment.
Plug the rotary attachment into the wall of the laser machine.
Place your glass on the wheels. Use the leveler to make it flat.
Turn the laser machine back on! You're ready!
Step 4: Printing Menu
Remember that printing at too high of a speed or power can damage the machine so always follow the instructions so you stay below dangerous settings.