Category Archives: laser

Tiny Laser Cutter Puts Micro Steppers to Work

The influx of cheap laser cutters from China has been a boon to the maker movement, if at the cost of a lot of tinkering to just get the thing to work. So some people just prefer to roll their own, figuring that starting from scratch means you get exactly …read more

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Posted in cnc hacks, diode, dvd, ESP32, laser, laser cutter, laser hacks, led, linear drive, stepper | Leave a comment

Why Does Solder Smoke Always Find Your Face?

For some of us the smell of rosin soldering flux vaporizing from the tip of an iron as a project takes shape is as evocative as the scent of a rose on a summer’s day. We’ve certainly breathed enough of it over the years, as it invariably goes from the …read more

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Posted in laser, smoke, solder fumes, solder smoke, soldering iron, tool hacks | Leave a comment

Open Source Raman Spectrometer is Cheaper, but Not Cheap

Raman spectrography uses the Raman scattering of photons from a laser or other coherent light beam to measure the vibrational state of molecules. In chemistry, this is useful for identifying molecules and studying chemical bonds. Don’t have a Raman spectroscope? Cheer up! Open Raman will give you the means to …read more

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Posted in laser, raman spectrometer, raman spectroscopy, science, spectroscope, spectroscopy | Leave a comment

Open Laser Blaster Shells Out More Bang for the Buck

[a-RN-au-D] was looking for something fun to do with his son and dreamed up a laser blaster game that ought to put him in the running for father of the year. It was originally just going to be made of cardboard, but you know how these things go. We’re happy …read more

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Posted in 9G servo, arduino, Arduino Hacks, arduino nano, laser, neopixel ring, servo | Leave a comment

Human-Powered Laser Gun Makes Battery-Free Target Practice

[Dirk] shared a fascinating project of his that consists of several different parts coming together in a satisfying whole. It’s all about wanting to do target practice, indoors, using a simple red laser dot instead of any sort of projectile. While it’s possible to practice by flashing a red laser …read more

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Posted in 3d printed, cowboy rifle, energy harvesting, generator, human-powered, laser, laser hacks, opencv, Rasperry Pi, shooting, target, target practice, weapons hacks | Leave a comment

Freeze Laser Beams — Sort Of

They say a picture is worth a thousand words, and by that logic a video must be worth millions. However, from nearly the dawn of photography around 1840, photographers have made fake photographs.  In modern times, Photoshop and Deepfake make you mistrust images and videos. [Action Lab] has a great …read more

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Posted in laser, science, special effect, special effects, stroboscopy, video hacks | Leave a comment

LIDAR System Isn’t Just A Rangefinder Anymore

For any project there’s typically a trade-off between quality and cost,as higher quality parts, more features, or any number of aspects of a project can drive its price up. It seems as though [iliasam] has managed to avoid this paradigm entirely with his project. His new LIDAR system knocks it …read more

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Posted in laser, laser hacks, lidar, rangefinder, time of flight | Leave a comment

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

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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

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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

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