Category Archives: laser

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

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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

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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

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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

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A Laser Aiming Module for First Person Hacking

You’ve perhaps noticed that [Jeremy Cook]  is rather prolific on YouTube, regularly putting out videos on his latest and greatest creations. He wanted to add a head-mounted GoPro to his video production bag of tricks, but found it was a little trickier than expected to get the camera to point …read more

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Posted in 3D printed parts, aiming, GoPro, laser, laser hacks, video hacks | Leave a comment

Metal 3D Printing — a Dose of Reality

We have no doubt that hundreds of times a day a hacker is watching a 3D printer spew hot plastic and fantasizes about being able to print directly using metal. While metal printers are more common than ever, they are still out of reach for most people printing as a …read more

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Posted in 3d Printer hacks, 3d printing, laser, metal, selective laser melting, sls | Leave a comment

We Were Really Overdue For Laser Jackets

Depending on who you talk to, everything is either fine, or we’re living in an oppressive cyberpunk dystopia in which we forgot to drench everything in colored neon lighting. There’s little to be done about the digital surveillance panopticon that stalks our every move, but as far as the aesthetic …read more

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Building An Optically Pumped Laser Pointer

As a society, we’ve largely come together to agree that laser pointers are mostly useless. They’re now the preserve of university lecturers and those destined to wind up in a jail cell for harassing helicopter pilots. Most pointers are of the diode-pumped solid state variety. However, [Zenodilodon] treads a different …read more

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Posted in laser, laser hacks, laser pointer, opsl, optically pumped laser | Leave a comment

Building A 1.4W Laser Pointer In A Tiny Housing

Laser pointers were cool for about 30 seconds when they first came out, before becoming immediately passé and doing absolutely nothing to improve the boss’s quarterly reports presentation. However, just as with boom boxes and sports cars, more power can always make things better. [Styropyro] was unimpressed with the weak and unreliable laser pointers he’d sourced from eBay, so gutted one and began a fresh build.

After fiddling with some basic 1mW eBay green lasers, [styropyro] had some fun turning up the wick by fiddling with the internal trimpots. This led to the quick and untimely death of the cheap …read more

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Posted in laser, laser diode, laser hacks, laser pointer | Leave a comment

Text Projector With — You Know — Lasers

We missed [iliasam’s] laser text projector when it first appeared, perhaps because the original article was in Russian. However, he recently reposted in English and it really caught our eye. You can see a short video of it in operation, below.

The projector uses raster scanning where the beam goes over each spot in a grid pattern. The design uses one laser from a cheap laser pointer and a salvaged mirror module from an old laser printer. The laser pointer diode turned out to be a bit weak, so a DVD laser was eventually put into service. A DVD motor …read more

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Posted in Arduino Hacks, arm, blue pill, laser, laser hacks, mirror, raster, stm | Leave a comment