The concentration of light waves cuts out all the extra waves that cross over each other, and it's what makes that cool, mesmerizing beam of (usually) red light.Now, focus all of the wavelengths so that they don't cross over each other, but instead line up perfectly with each other.A normal light has a bunch of different, varying wave lengths (the distance between the peaks of troughs of each wave) which cross over each other.Light moves in waves-up and down, so to speak.There are three major factors to how this works: Concentration, Energy, and Direction. Verrrrry simplified.light is concentrated over and over again to create a powerful beam. The word "laser" is actually an acronym for " Light Amplification by Stimulated Emission of Radiation." Of particular interest to us, however, is a laser's capacity to cut, etch, engrave, or mark various materials-that is to say, its ability to personalize and decorate. They're especially good at popping balloons, but you shouldn't try the things you see in this video at home. You don't have to be 007 to have a laser we use them every day! While those films make lasers look like really cool and dangerous weapons (and some lasers can definitely be dangerous, so be careful), they're more often than not just helpful tools performing a bunch of simple, harmless tasks. If you're like me, whenever someone says the word "laser", my first thought is either of the lightsabers in Star Wars or James Bond's Q-built gadget watch. So what does engraving look like in our modern world? Let's talk about lasers.Īren't lasers just something from Star Wars?
Huzzah for Gutenberg!)Īdd in a couple of major technological leaps and the invention of the computer.and engraving moved back into the realm of decoration from its major stint as the source of printing. (The Printing Press was essentially a whole bunch of small engravings arranged into sentences and pressed onto pages. In the 1400s the process of engraving became integral to recreating documents and artwork as pieces of wood were carved, the raised portions were coated in paint or ink and pressed into paper or cloth to duplicate an image. Much like today, engraving in the ancient world was used to decorate and design. The world's oldest engraving actually dates back 500,000 years ago to a doodle!įast forward to 3000 BC, the Sumerian and the Hittite elite began engraving intricate seals in stones and precious gems. Wayyyyyyy back when, engraving was the method used to start the whole process of decorating as one stone was used to mark another stone. Laser engraving is doing the same process with a super-focused beam of light.Īn Incredibly Brief History of Engraving. General engraving is the process of cutting or carving a design into a hard material. I'll discuss the basics of laser engraving and show you why they make every gift so much more special. It might seem like a complex, in-depth, hyper-involved process, but it's actually very simple.
In this article, I'm going to introduce you to the entire process of engraving focusing mainly on laser engraving.
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