Thinking Outside the Build Platform: MATAERIAL’s ‘Anti-Gravity Object Modeling’ 3D Printer

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Earlier this year, we came across the 3Doodler, a pen that allows the user to sketch far beyond the bounds a material substrate, namely paper. (Boston’s WobbleWorks had more than quadrupled their $30,000 funding goal when we posted about the product at launch; by the time the campaign wrapped up a month later, they’d raised a whopping $2.3m)


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Led by Petr Novikov and Saša Jokić, a team of researchers from the Institute for Advanced Architecture of Catalonia (IAAC) and Joris Laarman Studio in Amsterdam have developed a new, patent-pending additive manufacturing technology, known as MATAERIAL. (Pun lover though I may be, it took me a moment to get the name.) The machine is essentially an articulating arm that can create three-dimensional objects on any surface, independently of a build platform.

By using innovative extrusion technology we are now able to neutralize the effect of gravity during the course of the printing process. This method gives us a flexibility to create truly natural objects by making 3D curves instead of 2D layers. Unlike 2D layers that are ignorant to the structure of the object, the 3D curves can follow exact stress lines of a custom shape. Finally, our new out of the box printing method can help manufacture structures of almost any size and shape.


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More Digitally Fabricated Records: Listen to the Velvet Underground on Laser Cut Maple

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We were pretty impressed with Amanda Ghassaei’s 3D-printed records, but apparently the Tech Editor at Instructables isn’t content to blow our minds with her digital fabrication prowess just once. As of this weekend, she’s back with a veritable encore: a Laser Cut Record.

Although all the documentation for that project is available here, and the 3D models can be printed through an online fabrication service, I felt like the barrier to entry was still way too high. With this project I wanted to try to extend the idea of digitally fabricated records to use relatively common and affordable machines and materials so that (hopefully) more people can participate and actually find some value in all this documentation I’ve been writing.

As with the 3D-printed vinyl, the laser cut record is hardly high-fidelity… but that’s not the point. The point is, it’s really f’in cool.

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A Different Kind of 3D-Printed Music, by Rickard Dahlstrand

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Earlier this year, we had took a look (and listen) at Amanda Ghassaei’s 3D-printed 33’s. I suppose it’s no coincidence that the muffled but recognizable playback obliquely evoked the soothing sounds of “a printer or scanner arm moving back and forth across a two- or three-dimensional stage.” Swedish art hacker Rickard Dahlstrand apparently arrived at a similar conclusion, but he’s upped the ante by actually programming a 3D-printer to chirp out ditties, “using a Lulzbot 3D-printer to visualize different classical musical pieces.” On the occasion of the recent Art Hack Day in Stockholm, he took the opportunity to “explore the alternative uses of 3D-printers to create unique art by ‘printing’ classical pieces of music while at the same time acting as an instrument and performing the music itself.”

In short, the step motors—which control the movement of the stage and print head—generate pitched tone based on their speed, such that it is possible to predict discreet tones by varying their speed. “Microphones on the motors pick up the sound and amplify it.” I imagine Dahlstrand determined the correlation between the output in space (XY coordinates) and as sound in order to transpose the tunes as CAD files; the current repertoire includes Beethoven, Rossini, Mozart, Strauss, Bizet and Williams (John, that is).

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Radial Arms: Alternative Form Factor for 3D Printers?

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The shape of a 3D printer is easy to envision: “Form follows function” dictates that they all have rigid parts aligned in the X-, Y- and Z-axes that the print head will travel along. But a fellow named Jon Wise is tinkering with an alternate design that uses radial arms rather than a grid-based Cartesian system of plotting, making his mock-up look less like a box and more like a drawing machine.

“Standard 3D printers require significant mechanical structure to provide movement on the three axes,” writes Wise. “This alternative design uses radial arms with a minimum of mechanical engineering.” If 3D printers were all designed this way, assuming the pieces had the appropriate rigidity, they could use less materials in their construction and, through clever design, be made more portable. Sure there’d be more calculations required for plotting, but Wise farms that out to the diminutive, inexpensive Raspberry Pi computer board:

This brains-over-brawn approach is intriguing. It would be neat if it not only folded up, but if there were little laser sensors hooked up to a processor that could constantly make microadjustments to the stepper motors to compensate for slop in the parts. If even a clumsy craftsperson could slap one of these together, and a computer brain did the heavy lifting in terms of calculations, it could open up a lot of possibilities for bringing precision production to areas where precision is in short supply.

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New Technology Will Enable the 3D Scanning of (Non-Asian) People From Ten Kilometers Away

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The Photon 3D Scanner we mentioned last week has been overfunded by $140,000. The Photon, you’ll recall, will allow you to inexpensively scan things on your desk.

A team of Heriot-Watt University researchers in Scotland, however, have developed a 3D scanner with a very different reach: It scans objects that are up to 325 meters away from it, and will reportedly be able to scan at a distance of 10 kilometers in the future. The researchers documented the results achieved with their functioning prototype in an optic science journal, and according to 3Ders,

The new system works by sweeping a low-power infrared laser beam rapidly over an object. It then records, pixel-by-pixel, the round-trip flight time of the photons in the beam as they bounce off the object and arrive back at the source. The system can resolve depth on the millimeter scale over long distances using a detector that can “count” individual photons.

However, you’ll notice that while the mannequin scanned with something approaching fidelity, the face of the Asian gentleman (one of the co-authors of the research paper) is severely distorted:

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This would seem to indicate that Asian people are immune to laser beams. For their part the researchers claim that human skin and perspiration muck with the scanning technology, but I think we can all agree that my explanation is more compelling.

As for applications, the team forecasts that their long-range 3D scanner could be used to scan large natural environments, like the side of a mountain, for example. They estimate that “a lightweight, fully portable scanning depth imager is possible and could be a product in less than five years.”

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The Photon 3D Scanner: Nearly Funded

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“We’ve visited various makerspaces,” write Adam Brandejs and Drew Cox, “and we were surprised to find a lot of people that had bought 3D printers didn’t really know what to do with them.” Jeez Louise, I can tell you what to do with them! Assuming affordability, I’d use a 3D printer to create precisely-sized tool cutouts as custom drawer inserts, to organize my hand tools; I’d make a nozzle adapter to turn a Shop Vac into a micro-vac for cleaning inside dusty machines; I’d make cases to carry irregularly-shaped objects.

All of those things require CAD files of the objects they’ll carry and fit into, and that’s where Brandejs and Cox come in. They’re the multitalented desigers/programmers behind Matterform, a Toronto-based startup trying to get an affordable 3D scanner on the market. By making it easier to get input data, they’re thinking, a barrier to 3D printing will be lowered.

Matterform has spent a year working on the prototype for their Photo 3D Scanner, and it looks pretty sweet:

Next step? Getting the thing funded so it can go into production. The Photon is currently up on Indiegogo, and while the $349 Early Backers price is sold out, there’s still plenty of slots left to claim a first-batch unit at $399.

At press time the Photon was up to $61,541 of an $81,000 target, and with 30 days left to pledge, it looks like this thing will happen.

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Production Methods: Electrical Discharge Machining

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Electrical discharge machining, or EDM, is a wicked (and expensive) way of cutting metal to extremely fine tolerances. It’s a CNC process whereby two electrodes are precisely placed at opposite ends of the workpiece; a powerful spark is then generated between them, essentially vaporizing the material in the path of the spark. The dross is then flushed away by a constant stream of de-ionized water running across the workpiece. Check it out:

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A Database of 120 Different 3D Printers, With Prices & Stats

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You’ve heard of MakerBot, Cubify and Solidoodle. And if someone finds out you’re into ID and asks “Hey, what do one of those 3D printers go for?” you can spit out a ballpark figure, and maybe some basic stats.

But there are tons of other 3D printers available on the consumer market, and plenty of questions you might not have the answers handy to: Which can I most easily buy if I’m in India, the Netherlands, or Taiwan? What are the build envelopes and prices? Which use fused filament fabrication, which go with fused deposition modeling? Are there affordable ones that do stereolithography?

To answer these questions and more, the good folks over at 3Ders.org have put together a handy database listing over 100 different types of 3D printers with their relevant stats, countries of origin, current stock availability, and prices (the lowest-priced DIY machine starts at US $189, while the high end of the consumer market goes into five figures). Anyone across the globe who’s looking to get into 3D printing will find it a handy place to start narrowing options.

Here’s something we’re curious about—in a year’s time, do you reckon this list will be longer, or shorter?

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If You Want a Gigabot, the Successfully Kickstarted Large Scale 3D Printer, You’d Better Act Fast

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Well folks, it looks like 3D printing is about to get a lot bigger, literally, for consumers. In January a company called re:3D debuted their Gigabot, a large-scale 3D printer with an enormous 24″ x 24″ x 24″ build area. The larger capacity was designed to print out the things re:3D wanted to make, namely, rainwater collecting devices and composting toilets for the developing world.

After the Gigabot was unveiled at Houston’s Mini Maker Faire, interest was so high that re:3D subseqently launched a Kickstarter campaign for mass producing them. With prices starting at $2,500 for a kit and up to $4,950 for a flatpack requiring some assembly, buy-in was not cheap; despite that, the interest was real, as they’ve topped their $40,000 target with $105,000 at press time.

While there’s nearly 48 days left to pledge, those looking to get in on this had better hurry—there are just a handful of machines available starting at the $3,250 price bracket.

Here’s a closer look at the machine, its capabilities, and re:3D’s original mission for it:

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Video of Trumpf’s Trulaser 7000 Series: The Most Bad-Ass Manufacturing Machine Ever?

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Illinois-based Superior Joining Technologies is “a Woman-Owned Business,” as they proudly point out; for several years they’ve also been the owners of an incredibly bad-ass machine called the Trulaser Cell 7040, a 5000-watt beast manufactured by Germany’s Trumpf.

The Trulaser 7000 series are multi-axis laser cutting and laser welding machines that run off of CAD file input. What can these machines do with metal? A better question is what can’t they do. Observe their sheer majesty:

By the bye, while I rate this video highly for the machine’s kick-assery, I still think the cat guy would’ve made this video awesome.

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