Using the Golden ratio with the Laser Cutter - made at Techshop!

Picture of Using the Golden ratio with the Laser Cutter - made at Techshop!
My first go at Techshop! I can’t believe I have lived in Pittsburgh this long and never chanced upon it!

Well, its a simple go, but it has a concept behind it.

Its all about using both sides of a material. Kinda like Kandinsky’s stick but not contrasting and certainly not as beautiful. Not to mention the material is see-through… Add these ideas to the golden mean proportion and you got endless ways to create line art.

My thoughts were to use the same vector squiggle I made on each side of the plexiglass - but at a different position on each side. Since acrylic is transparent and behaves as such, my hope was I would find an interesting 3D-kinda effect, as you look through from the front etching to the back…..

I did the sketch in Illustrator, as we all do, making sure the line thickness was above 2 pixels so there is enough line to give texture but not too much to get in the way of the other side….
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Step 1: Tools & Software used

Optix Acrylic Sheet (11' x 14' x .093')
Laser Cutter Trotec machine
Adobe Illustrator CC (though I saved it out as a CS3 Illustrator file, just in case)

I made this at Techshop

Step 2: First steps

Picture of First steps
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Lets set the scene. Show the Grid ( hotkeys are ⌘’) and Rulers (⌘r ). In the Guides and Grid Preferences (⌘,) set the grid to snap and the grid spacing to 0.25 in.

Draw a square (hotkey; m) then drag a guide from the left Ruler and place in the center of the square.

Then draw a circle (l) from the bottom center point on the guide, holding down the ⌘ and ⌥ keys. Drag the circle so its border touches both the square's top corners. This is the circle we will use as a guide to decipher the golden proportion.

Then draw a rectangle from the upper right corner of the square, making the width equal to where the circle intersects. Make the height the same as the square.
wilgubeast1 year ago
That's really cool! It looks a bit like a surrealist palette meets the Scream mask. :D