A Staple Gun, Caulking Gun, And Four-Barrel Shotgun

In its native form, [Clint]’s K-441 is a caulking gun, able to apply silicones, resins, and liquid rubber from a reservoir with compressed air. It’s accurate, powerful, has a huge capacity, and looks strangely steampunk, even for caulking gun standards. This isn’t any normal caulking gun; this device was made from a staple gun. Oh, it also fires shotgun shells with the help of four rifled barrels.

This device that shoots lead, steel, and glue started off its life as an ordinary staple gun, with the usual 23lb pull you’ll find on these guns. By adding a few plates, hand-winding a spring, and milling a few parts, [Clint Westwood] turned this staple gun into a device that would shoot a single .410 bore shell. A practice round as far as shotguns go, but still a serious amount of punch.

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Extreme Repair of an All-in-One PC

While browsing a local auction site, [Viktor] found himself bidding on a beat up Lenovo A600 all-in-one PC. He bid around $50 and won. Then came the hard part – actually making the thing work. The front glass was cracked, but the LCD was thankfully unharmed. The heat pipes looked like they had been attacked with monkey wrenches. The superIO chip’s pins were mangled, and worst of all, the MXM video card was dead.

The first order of business was to fix the superIO chip’s pins and a few nearby discrete components which had been knocked off their pads. Once that was done, [Viktor] was actually able to get the computer to boot into Linux from a USB flash drive. The next step was bringing up the display. [Viktor] only needed a coding station, so in addition to being dead, the video accelerator on the MXM wasn’t very useful to him. The Lenovo’s motherboard was designed to support video on an MXM card or internal video. Switching over meant changing some driver settings and moving a few components, including a rather large LVDS connector for the display itself. A difficult task, compounded by the fact that [Viktor’s] soldering tools were a pair of soldering guns that would be better suited to fixing the bodywork on a ’57 Chevy. He was able to fashion a hot wire setup of sorts, and moved the connector over. When he was done, only one tiny solder bridge remained!

The end result is a new coding battle station for [Viktor] and a computer which was a basket case is saved from the landfill. If you like this hack, check out [Viktor’s] low power PSU, or his 1 wire network!

Ghost Gunner Machines Your AR-15

Defense Distributed and founder [Cody Wilson] have released Ghost Gunner. Defense Distributed entered the public eye a couple of years ago with The Liberator, the world’s first 3D printed gun. Since anyone with a 3D printer can print a Liberator, it is effectively untraceable. This raised a lot of questions in the media and public eye.

Ghost Gunner is a variation on the untraceable theme. Essentially, Ghost Gunner is a CNC designed for one purpose: final drilling and milling steps for AR-15 lower receivers. The reason for this has to do with federal gun laws in the United States. According to US law, the lower receiver is the actual firearm, and is regulated. But when does a block of aluminum become a lower receiver? Here, US law states that the metal becomes a regulated receiver when the machining operations are more than 80% complete.

ghostgunnergunAnyone can legally buy a barrel, trigger, stock, upper receiver, and various other parts to build an AR-15. To complete the weapon, they only need to buy an 80% lower receiver and perform the last 20% of the metal work. This work can be performed with everything from a drill press to a milling machine to hand tools. Ghost Gunner partially automates this process, making it easier and faster to complete lower receivers and build weapons.

Defense Distributed calls Ghost Gunner an open source hardware project, though we were unable to find the files available for download at this time. It appears that the slides are made up of MakerSlide or a similar aluminum extrusion. The steppers appear to be standard Nema 17 size.

Defense Distributed says that they’ve been having a hard time keeping up with the Ghost Gunner pre-orders. At $1300 each though, we think a general purpose mill or small CNC would be a better deal.

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ASTROGUN is like Asteroids on Steroids

Astrogun

As the Jerusalem mini Makerfaire approached, [Avishay] had to come up with something to build. His final project is something he calls ASTROGUN. The ASTROGUN is a sort of augmented reality game that has the player attempting to blast quickly approaching asteroids before being hit.

It’s definitely reminiscent of the arcade classic, Asteroids. The primary difference is that the player has no space ship and does not move through space. Instead, the player has a first person view and can rotate 360 degrees and look up and down. The radar screen in the corner will give you a rough idea of where the asteroids are coming from. Then it’s up to you to actually locate them and blast them into oblivion before they destroy you.

The game is built around a Raspberry Pi computer. This acts as the brains of the operation. The Pi interfaces with an MPU-9150 inertial measurement unit (IMU). You commonly see IMU’s used in drones to help them keep their orientation. In this case, [Avishay] is using it to track the motion and orientation of the blaster. He claims nine degrees of freedom with this setup.

The Pi generates the graphics and sends the output to a small, high-brightness LCD screen. The screen is mounted perpendicular to the player’s view so the screen is facing “up”. There is a small piece of beam splitting glass mounted above the display at approximately a 45 degree angle. This is a special kind of glass that is partially reflective and partially translucent. The result is that the player sees the real-world background coming through the glass, with the digital graphics overlaid on top of that. It’s similar to some heads-up display technologies.

All of the electronics fit either inside or mounted around a toy gun. The display system was attached with a custom-made fiberglass mount. The code appears to be available via Github. Be sure to watch the video of the system in action below. Continue reading “ASTROGUN is like Asteroids on Steroids”

Firing Blanks With Laser Tag

glockLast year, [Tony] was asked to develop a lasertag system with ultimate realism. This meant a system that used a blank firing replica gun, and a system to detect blank rounds being fired. Very cool, and the way he went about it includes some interesting electronics.

Because the system requires a blank to be fired before shooting a laser at a target, the entire system must be able to detect a blank being fired. [Tony]’s first attempt used a piezo sensor to detect the shock from being fired. This system had a lot of noise and was ditched for a much better solution: a magnet mounted to the slide, and a hall effect sensor mounted to a 3D printed frame that turns this replica into a carbine.

A little bit of tweaking in software was required to inhibit the laser when the operator cocks the gun, but it looks – and sounds – really good. It’s also very, very realistic: the only way to shoot an opponent is to physically reload. Video below.

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The Kickstarter Space Cannon

cannon

As far as space travel and Kickstarter is concerned, we’ve seen crowdfunding projects for satellites in low earth orbit, impacting the moon, and even a project for a suborbital rocket. This one, though, takes the cake.  It’s a gun designed to send very small payloads into space on a suborbital trajectory.

The gun itself is an 8-inch bore, 45-foot long monster of an artillery piece. While the simplest way of shooting something down the length of a barrel would be exploding something in the breech, [Richard] is doing something a little more interesting. He’s broken down the propellent charges so instead of one giant propelling a bullet down a barrel, the projectile is constantly accelerated with a number of smaller charges.

The goal of the Kickstarter is to send a small payload into a suborbital trajectory. Later developments will include putting a small rocket motor in the dart-shaped bullet to insert the payload into an orbit.

This isn’t the first time anyone has attempted to build a gun capable of shooting something into space. The US and Canada DOD built a gun that shot a 180 kg projectile to 180 km altitude. The lead engineer of this project, [Gerald Bull] then went on to work with [Saddam Hussein] to design a supergun that could launch satellites into orbit or shells into downtown Tel Aviv or Tehran. [Bull] was then assassinated by either the US, Israeli, Iranian, British, or Iraqi governments before the gun could be completed.

Two videos from the Kickstarter are below, with a few more details on the project’s webpage

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Why You Shouldn’t Care About The All-Metal 3D Printed Gun

Solid Concepts, one of the world’s largest rapid prototyping outfits, just printed a gun. Unlike previous 3D printed guns like the Liberator, this 3D printed version of an M1911 is made out of metal. It’s a real gun, with rifling in the barrel – something the Liberator doesn’t have – and has the look and feel of what the US military has been using as a service pistol for decades.

The Solid Concepts 1911 was made using the selective laser sintering process, using a combination of stainless steel and nickel-chromium alloys. Every single part of the gun, save for the spring, was 3D printed without any machining. It’s an impressive feat of rapid manufacturing – firing .45 ACP rounds, this gun will see 20,000 psi every time the gun is fired. It’s already chewed through a few magazines so far, and it apparently shoots pretty well, to boot.

Here’s why you shouldn’t care.

Solid Concepts business is to make things using rapid prototyping. They make everything from plastic baubles, tooling for injection molds, architectural models, and stuff that doesn’t get past the prototype stage. This 3D printed 1911 is simply a demonstration of Solid Concept’s capabilities, nothing more.

The printer used to manufacture this printer is an EOS SLS printer that costs many tens of thousands of dollars. Our limited research can’t pin the price of the printer down more than that, but let’s just say you could buy a very, very nice sports car for the same price, and we’re not talking about that awesome ‘vette down at the Chevy dealership.

This is just a neat little advertisement, that’s it. Someone at Solid Concepts realized if they made a gun using 3D printed parts, it would be picked up by blogs and wire services. They were right. It’s an excellent demo of what Solid Concepts’ capabilities are, but that’s just about it. You’re still not able to manufacture an M1911 on a desktop 3D printer, and even if you could, you could set up a machine shop in your garage and end up with a similar product for less money.

As an aside, and this is just me throwing an idea out there, can we please stop using guns as an example of what 3D printing can do? I respect your right to manufacture, own, and operate a gun, but as I write this paragraph, I’m cringing at the thought of all the pro and anti-gun comments this post will see.

If you’re looking for a way to demonstrate your 3D printing prowess, how about something like an engine? Given the right design, they’re more complicated than a gun, and a really small Wankel engine would be really cool.

Video of the Solid Concepts 1911 available below.

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