Category Archives: laser

Laser Etches Solar Absorbing Material

Having a laser cutter these days isn’t a big deal. But [Chunlei Guo], a professor at the University of Rochester, has a powerful femto-second pulse laser and used it to create what might be the perfect solar absorber. You can see a video about the work, below.

It stands to …read more

Continue reading

Posted in laser, news, science, solar, solar hacks, tungsten | Leave a comment

Array of Useless Machines is Useless

What’s the collective noun for a group of useless machines? A passel of useless machines? A failure? A waste? A 404?  Whatever you want to call it, [Martin Raynsford] has produced one here with this collection of 24 useless machines arranged into a 5 by 6 array. He produced it …read more

Continue reading

Posted in laser, laser cut, misc hacks, useless | Leave a comment

Burning Things With Big Lasers In The Name Of Security

Several fields of quantum research have made their transition from research labs into commercial products, accompanied by grandiose claims. Are they as good as they say? We need people like Dr. Sarah Kaiser to independently test those claims, looking for flaws in implementation. At the 2019 Hackaday Superconference she shared …read more

Continue reading

Posted in 2019 Hackaday Superconference, cons, laser, qkd, quantum, quantum cryptography, security hacks | Leave a comment

Hackaday Links: January 5, 2020

It looks like the third decade of the 21st century is off to a bit of a weird start, at least in the middle of the United States. There, for the past several weeks, mysterious squads of multicopters have taken to the night sky for reasons unknown. Witnesses on the …read more

Continue reading

Posted in colorado, data recovery, drone, Hackaday Columns, Hackaday links, hard drive, laser, magnet, medical imaging, mobility, non-contact, search, segway, self balancing, uav, ultrasound | Leave a comment

Use Blueprint Process to Print on Fabric With Lasers

[Shih Wei Chieh] has built a laser cyanotype printer for fabrics. You know, for art!

How do you get an inkjet head on a shoe or a couch? Most printing processes require a flat surface to print. But hearkening back to the days when a blueprint was a blueprint, a …read more

Continue reading

Posted in art, cyanotype, laser, laser hacks, photography, printing | Leave a comment

Upgrade Your Shades to Find Lost Items

Ever wish you could augment your sense of sight?

[Nick Bild]’s latest hack helps you find objects (or people) by locating their position and tracking them with a laser. The device, dubbed Artemis, latches onto your eyeglasses and can be configured to locate a specific object.

Images collected from the …read more

Continue reading

Posted in Arduino Hacks, computer vision, laser, opencv, servos | Leave a comment

Laser Toy Keeps Cats Entertained

Cats are among the most popular domesticated creatures, and their penchant for chasing laser pointers is well known. With a pair of felines of his own to look after, [Tobi] set about making a device to help keep them entertained.

The aim of the device is to automate the motion …read more

Continue reading

Posted in cat, laser, misc hacks | Leave a comment

Building A Laser Head With High Speed, High Resolution

Typically, when it comes to scanning a laser, it’s done with galvos or a rotating mirror assembly. However, these methods can be slow and cumbersome, or restricted due to existing patents. [Rick] aimed to find an alternative solution with the Hexastorm project, using a rotating prism to build a high …read more

Continue reading

Posted in 2019 Hackaday Prize, laser, laser hacks, The Hackaday Prize | Leave a comment

The Practical Approach to Keeping Your Laser in Focus

You could be forgiven for thinking that laser cutters and engravers are purely two dimensional affairs. After all, when compared to something like your average desktop 3D printer, most don’t have much in the way of a Z axis: the head moves around at a fixed height over the workpiece. …read more

Continue reading

Posted in adjustment, alignment, automated bed leveling, laser, laser cutter, laser hacks, tool hacks, z-axis | Leave a comment

Building a Mag Lev Optical Table

When you’re talking about optics, things are often happening on a nanometer scale. This means that even the slightest amount of vibration can spoil delicate work. [The Thought Emporium] is working on a long-scale project to produce chocolate holograms, and needed a stable surface to set up some optical components. …read more

Continue reading

Posted in laser, laser hacks, laser table, optical table | Leave a comment