Rolling robots 3D print a bridge, inching their way along the span as they lay it

The Smarter Bridge is a project led by Mix3d, which makes robotic 3D printers that can sinter stainless steel structures and inch their way along the surfaces as they are completed. Read the rest

Laser cutters and 3D printers revive century-old a magic lantern show of Erewhon at the Edinburgh Fringe

James Coutts writes, "Indiana University Victorian Studies PhD candidate Mary Borgo Ton assembled an international group of artists/makers, a media archaeologist, laser cutters and 3D printers to create magic lantern slides that have not been made in 100 years for a show running in the Edinburgh Festival Fringe called Erewhon: "An antique magic lantern projector, an iPhone and a live musical score shine a new light on Samuel Butler’s classic sci-fi novel. A Victorian explorer discovers a colony of refugees; time travellers from the 21st century escaping their dependence on its technology. This delightful neo-historical head-scratcher playfully welds future, past and present into a glittering bracelet of time." Read the rest

Watch this nanolab print liquid 3D structures

By creating a surfactant that holds water in place, scientists are able to produce repeatable liquid 3D shapes in these nanoparticle "supersoaps" with modded off-the-shelf 3D printers. Read the rest

What's at stake in the fight over printing files for guns

There's been a lot of news freakout over Defense Distributed (previously) and "3D printed guns" (a term that confusingly encompasses milled guns, 3D printed guns, and files that describe the shapes of guns). Read the rest

Darknet paper, the 3D printed gun edition

In 2002, Microsoft security researcher Peter Biddle (previously) published The Darknet and the Future of Content Distribution, a paper that argued that DRM would always fail and that traditional forms of censorship would be harder and harder to execute online (it also coined the term "Darknet"); today, in honor of America's mass freakout over 3D printed guns, he's published an updated version, which mostly consists of adding "this applies to guns, too" over and over again, for people who are unclear on the concept. Read the rest

Time For America To Freak Out About 3-D Guns Again

None of the mass shootings in America have been committed by shooters using 3-D Guns, but that's not stopping Donald Trump and a bunch of NRA-backed lawmakers from freaking out about the threat DIY weapons pose, before doing anything about how readily available regular old guns are to regular old bad guys. Read the rest

This 3D printed titanium fuel tank part shaved 18 months off spacecraft production schedule

Lockheed Martin just made the largest 3D printed part they've ever ever built for space. The titanium domes used to take a couple of years to make from scratch, but this was completed in about three months. Read the rest

Watch how to 3D print freaky, wobbly sphericons

After seeing a successful Kickstarter project, Angus from Makers Muse has been experimenting with sphericons, unusual shapes that meander when they roll. Read the rest

3D printed guns just cleared a major legal hurdle

Last week, Defense Distributed founder Cody Wilson won a major ruling in his quest to distribute gun-printing software. The video above from February outlines the background of the case. Read the rest

Watch this lab 3D print human skin equivalent

Printable human skin analogues have a number of important real-world uses, particularly as current replacements for animal models used in testing things like cosmetics. Read the rest

What it's like to be personally responsible for automating away someone's high-paid, high-skill job

When Erin Winick was a sophomore, she got a summer internship at a company where her manager offered her the opportunity to use her passion for 3D printing to streamline the company's mold-making process; but when she started consulting with "Gary," a 34-year veteran of the company who was responsible for the complex molding process, she realized that she was about to put him out of a job. Read the rest

3D printed origami robots that crawl and grab when activated by magnets

A team at MIT’s Department of Mechanical Engineering and Department of Civil and Environmental Engineering have created a set of foldable, 3D printed robots that are doped with magnetic particles that are precisely aligned during printing; when triggered by a control-magnet they engage in precise movements: grabbing, jumping, rolling, squeezing, etc. Read the rest

Frozen Rat Kidney Shipping Container: The incredibly bounty of the NIH's 3D printables repository

The National Institutes of Health maintain a 3D Print Exchange, a kind of miniature Thingiverse for open-licensed, 3D printable objects for teaching and practicing public health. Read the rest

3D printing arbitrary shapes without sprues, by embedding them in 3D-printed clear plastic

3D printing complex shapes is hard; the additive nature of most 3D printing means that the printer has to create sprues (struts that support parts of the structure during printing, which have to be removed later), or add in material that can be dissolved in a solvent bath after main production. Read the rest

See how this 3D-printed gear turns clockwise no matter how it's cranked

Differential gears can be used for all sorts of interesting things, as YouTuber Maker's Muse demonstrates with this 3D-printed hand crank that only turns clockwise. Read the rest

Watch this delightful 3D zoetrope system with swappable animations

4-Mation is a product being developed by Kevin Holmes, Jonathan Scoon, and Charlie Round-Turner that features a spinner that accommodates different 3D-printed animations, like the leaping frogs above.

They also have this cute fish loop:

They plan to offer three models, from basic to deluxe:

4-Mation is a modular 3D Zoetrope kit that will be available in 3 models. It’s powered by 24 3Watt RGB LED strobes, precision timed by a microcontroller linked to an encoder motor. RPM(Strobe-rate), brightness, colour are all controlled from a phone app. The Android app (4-Mation) is already in the play store, iPhone app is in progress. Assemble the kit in about 1/2 hour then download and print one of our free animations – or design your own.Animations can be swapped in a minute.

They took it to a local school, where the response was tremendous:

Sign up at their site to find out when the crowdfunding campaign launches.

4-Mation carousel 1: Jumping Frogs - a 3D Zoetrope (YouTube / Kevin Holmes) Read the rest

House your Raspberry Pi in a miniature TRS-80 style case

Retro Pi Cases makes and sells adorable housings for tiny computers, and their next model is going to be Tandy's classic TRS-80. It's not available yet, but checking out their site revealed to me their Commodore Amiga model, a no-brainer purchase. Read the rest

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