Drivers for 3D Printers and Why We Need Them

Manufacturers of 3D printers have a lot to do before they catch up with makers of the cheapest 2D, paper-based printers. If you’ve ever taken an inkjet apart, you’ll most likely find some sort of closed-loop control on at least one of the axes. The 2D printer will tell you when you’re out of ink, when a 3D printer will go merrily along, printing in air without filament. File formats? Everything is Gcode on a 3D printer, and there are dozens, if not hundreds of page description languages for 2D printers.

The solution to some of these problems are drivers – software for a 3D printer that slowly consumes the slicing of an object, printer settings, and placing an object on the bed. It’s coming, and the people who are responsible for making your 2D printer work with your computer are busy at work messing up the toolchain for your 3D printer.

The latest version of CUPS (C Unix Printing System) adds support for 3D printers. This addition is based on meetings, white papers, and discussions in the Printer Working Group (PWG). There has already been a lot of talk about what is wrong with the current state of 3D printer toolchains, what can be improved, and what should be completely ignored. Let’s take a look at what all of this has accomplished.

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The EM Drive Might Not Work, but We Get Helicarriers If It Does

There is a device under test out there that promises to take humans to another star in a single lifetime. It means vacations on the moon, retiring at Saturn, and hovercars. If it turns out to be real, it’s the greatest invention of the 21st century. If not, it will be relegated to the history of terrible science right underneath the cold fusion fiasco. It is the EM drive, the electromagnetic drive, a reactionless thruster that operates only on RF energy. It supposedly violates the laws of conservation of momentum, but multiple independent lab tests have shown that it produces thrust. What’s the real story? That’s a little more complicated.

The EM Drive is a device that turns RF energy — radio waves — directly into thrust. This has obvious applications for spacecraft, enabling vacations on Mars, manned explorations of Saturn, and serious consideration of human colonization of other solar systems. The EM drive, if proven successful, would be one of the greatest inventions of all time. Despite the amazing amount of innovation the EM drive would enable, it’s actually a fairly simple device, and something that can be built out of a few copper sheets.

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Hackaday Links: August 16, 2015

[Matt] created an animated gif of New Horizon’s Pluto flyby. The source images were taken from the the raw LORRI images, modified so the background star field could be seen, and assembled with OpenCV. Because Pluto and Charon orbit each other around a point above Pluto’s surface, simply putting Pluto in the center of each frame wouldn’t work. It’s the best visual explanation of this weird arrangement yet, all brought to you by the magic of OpenCV and Python.

On the subject of Kickstarter creators that don’t understand the conservation of energy, I present this.

We don’t know exactly what’s going on with this one, but here’s a swimming pool covered with RGB LEDs. It’s controlled by two Rainbowduinos, and looks like the coolest disco floor you’ve ever seen.

[Frank]’s 2011 Hundai Santa Fe wasn’t cool enough, so he added an F16 flight stick to his shift knob. The choice of joystick is paramount here: Saitek joysticks look too techy, Logitech ones are too expensive, and the Warthog H.O.T.A.S costs $400. Joysticks are extremely niche peripherals these days, it seems. He ended up strapping an old F16 joystick from the 90s on his shift knob, and it looks close enough to the real thing.

Two bodgers are stuffing the engine from a Toyota Celica into a 1980 Mini, and they’re trying to make it look stock. We’ve seen their project before, and now there’s a new episode. In this episode: the pedal box, the steering wheel, and figuring out how to make the car drive straight.

Saving 25,000 Electronics Manuals and Could Use Help is the largest repository of BBS archives and digital writings in the world, and admin [Jason Scott] has a nearly single-minded devotion to saving the documents of and relating to our electronic age. Now, he’s in a bit of a pickle. He found 25,000 manuals for all kinds of electronic items. The collection goes back to the 30s, [Jason] wants to save them, and the current owner of the collection needs the space. Have you ever noticed how terrible books are to move?

Included in this collection just outside Baltimore, MD are thousands of manuals for various pieces of equipment going back to the 1930s. There are Tektronix manuals, HP manuals, and instructions and schematics for equipment that hasn’t been made in a very, very long time. [Jason] put up a Flickr gallery of the library in all its glory. There’s bound to be some very interesting stuff in there.

Of course the acquisition of tens of thousands of out of print manuals will never go smoothly. [Jason] needs to start emptying out the shelves on Monday. The current plan is to go through all the manuals, remove the duplicates, and shuffle them over to a storage unit about a mile away until they can be dealt with properly. If you’re around Baltimore, or more specifically Finksburg, MD, [Jason] could use a few hands to clear out this archive on Monday.

Hackaday Prize Entry: Soft Orthotics

Nearly a million people in the US suffer from CP, a neurological disorder that causes spastic motion in the limbs. One of the biggest quality of life factors for CP sufferers is the ability to use their arms, and that means an expensive and clunky orthotic around their elbow. [Matthew] has a better idea: why not make a soft orthotic?

This is not [Matthew]’s first project with soft robotics. He’s the lead scientist at Super Releaser, the company responsible for the completely soft robotic Glaucus atlanticus and other soft pneumatic robots.

This soft, flexible orthotic exoskeleton is designed for sufferers of chronic movement disorders. Traditional orthotics are expensive, difficult to move, and uncomfortable, but by designing this orthotic to be just as strong but a little more forgiving, these devices minimize most of the problems.

The Neucuff is constructed out of extremely simple materials – just some neoprene, a velcro, and a CO2 cartridge. The problem with bringing this to market, as with all medical devices, is FDA requirements and certifications. That makes the Hackaday Prize an excellent opportunity for [Matthew] and the rest of Super Releaser, as well as anyone else trying to navigate regulatory requirements in order to change the world.

The 2015 Hackaday Prize is sponsored by:

Octopart and Altium Join Forces

Octopart, the search engine for electronic parts, is now a wholly owned subsidiary of Altium.

This acquisition is neither Altium’s first parts database purchase, nor is it Octopart’s first interaction with Altium. Ciiva, a parts and datasheet search engine was acquired by Altium a few years ago, and Altium Circuit Maker features an interface to the Octopart database.

Under the deal, Octopart will remain independent of Altium and operate out of their NYC office, and plans are for the part search engine to remain free and open.

Disclosure: Hackaday’s parent company, Supplyframe, also runs and, component search tools.

Where Are They Now: Terrible Kickstarters

Kickstarter started out as a platform for group buys, low-volume manufacturing, and a place to fund projects that would otherwise go unfinished. It would be naive of anyone to think this would last forever, and since these humble beginnings, we’re well into Peak Kickstarter. Now, Kickstarter, Indiegogo, and every other crowdfunding platform is just another mouthpiece for product launches, and just another strategy for anyone who needs or wants money, but has never heard of a business loan.

Of course there will be some shady businesses trying to cash in on the Kickstarter craze, and over the last few years we’ve done our best to point out the bad ones. Finding every terrible Kickstarter is several full-time jobs, but we’ve done our best to weed out these shining examples of the worst. Following up on these failed projects is something we have been neglecting, but no longer.

Below are some of the most outrageous Kickstarters and crowdfunding campaigns we’ve run across, and the current status of these failed entrepreneurial endeavors.

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