fabrication

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Protopiper

Fabrication prototyping tech from the HPI Human Computer Interaction Lab is a computerized tapegun that can produce 3D forms to help visualize objects in spaces:

Protopiper is a computer aided, hand-held fabrication device that allows users to sketch room-sized objects at actual scale. The key idea behind protopiper is that it forms adhesive tape into tubes as its main building material, rather than extruded plastic or photopolymer lines. Since the resulting tubes are hollow they offer excellent strength-to-weight ratio, thus scale well to large structures. 

More Here and Here

4

Incremental Forming

Video from Robots in Architecture documents a workshop session exploring digital fabrication form using an industrial robot and sheets of plastic:

During this highly experimental workshop we explored the potential of incremental forming of plastic in an architectural context. Over a week-long workshop we went at the very limits of both material and machine, finetuning the fabrication strategies in the process. All final exhibits were designed by the participants themselves within Grasshopper and KUKA|prc. The relative high speed of the process allowed us to iterate very quickly, using parametric programming to quickly react on and improve on the result of the previous experiment. 

Link

Rahkai’s replacement horns, FINALLY done.

These are made from EVA foam (carved) with surface texturing done in various dimensional glues and paints. The texturing took absolutely forever. I definitely want to offer carved foam horns as an alternative to cast resin horns, where something non-rigid and light is preferred over high detail, but I want to warn everyone right now that it won’t necessarily be the cheaper option!

4

Elastic Textures for Additive Fabrication

3D printing research into a method to design forms which change shape in a determined way when pressure is applied:

We introduce elastic textures: a set of parametric, tileable, printable, cubic patterns achieving a broad range of elastic material properties … Using a combinatorial search over topologies followed by shape optimization, we explore a wide space of wireframe-like, symmetric 3D patterns to obtain a small family. This pattern family can be printed without internal support structure on a single-material 3D printer and can be used to fabricate objects with prescribed mechanical behavior. The family can be extended easily to create families of anisotropic patterns with target orthotropic properties.

More Here

Look at this trash helmet that almost blinded me tonight. 

I think it’s turning out ok. It needs another coat of base paint and then I can start poking at all the details and silver paint so right now it’s very flat. But I give up for tonight. Which I’m fine with considering I did this all in half a day. I need to get a proper visor for it too. I didn’t think that one through because I kind of just started working on it on a whim today. 

3

Doubts surface on North Korea’s role in Cheonan ship sinking

… U.S. academics have joined the chorus of skepticism, holding a news conference this month in Tokyo to voice their suspicions about the “smoking gun:” a piece of torpedo propeller with a handwritten mark in blue ink reading “No. 1” in Korean.

“You could put that mark on an iPhone and claim it was manufactured in North Korea,” scoffed one of the academics, Seunghun Lee, a professor of physics at the University of Virginia.

Lee called the discovery of the propeller fragment five days before the government’s news conference suspicious. The salvaged part had more corrosion than would have been expected after just 50 days in the water, yet the blue writing was surprisingly clear, he said.

“The government is lying when they said this was found underwater. I think this is something that was pulled out of a warehouse of old materials to show to the press,” Lee said. [X]


The outer surface of the torpedo propulsion unit that was found was greatly corroded, presumably because the coat of paint that would have protected the metal had been burnt off during the explosion. The paint burn-off and resulting metal corrosion are consistent with a high heat explosion commonly found in bombs and torpedoes. And yet the blue ink marking of Hangul – “1bǒn” in Korean – remains intact despite the fact that ink has a lower boiling point, typically around 150 degrees in Celsius, than paint does – typically 350 degrees Celsius – and thus the ink marking should have burnt away just like the outer paint. Our simple estimates suggest that the torpedo would have been subjected to heat of at least 350 degrees Celsius and quite likely over 1000 degrees, high enough to burn the paint and thus the ink as well. This inconsistency – the high heat tolerant paint was burnt but the low heat tolerant ink was not – cannot be explained and casts serious doubt on the integrity of the torpedo as “critical evidence.” [X]


First, if one thinks sensibly, the “No. 1” mark could be written by South Koreans as well, and thus it would not be taken as evidence by a court of a democratic society. Even the JIG have denied its evidentiary validity; their own chemical analysis concluded that the ingredient of the blue ink was “Solvent Blue 5” that had been patented by a South Korean company, Monami, and they said that it cannot be traced to North Korea. [X]

politicususa.com
Ted Cruz Busted On Secret Tape Admitting That His Core Positions Are Fake
In a secret recording, Ted Cruz admitted that he doesn't really believe what he is trying to sell to Republican voters and that if elected president, a Cruz administration would not fight same-sex marriage. He also backed off of his positions on issues like abortion and common core.

“ … Hold on to your hats, because it turns out that Ted Cruz plays fast and loose with the truth. … “

“ … Ted Cruz’s top priority has always been advancing his own career, so it isn’t much of a surprise that the positions that he is selling Iowa, New Hampshire, and South Carolina aren’t the same as what he is telling people behind closed doors. … “

Phroyd

MIT’s groundbreaking MultiFab 3D printer can print with 10 materials simultaneously

3D-printing took a giant leap forward this week when an MIT research team announced they have developed a low-cost 3D printer that can use up to 10 different materials for one project. The innovation comes out of MIT’s Computer Science and Artificial Intelligence Lab(CSAIL) and they are calling it “MultiFab” for its ability to handle so many different types of material at the same time. This approach, which also includes vision assistance, can potentially save users time, energy and money. Some users of 3D-printing technology can pick one of two of those, but all three in the same machine is unprecedented at this level.

Read more.