This 3D-Printer Uses Holograms for Super-Fast Printing

Patrick Lynch for Arch Daily:  One established 3D-printing technique is using laser to cure light-activated plastic, building up layers one at a time in a time-consuming process. But now tech start-up Daqri has discovered a way of speeding up that process: by using a 3-dimensional hologram.  The printer works by projecting a 3D light field into a dish of the light sensitive monomer “goo.” The plastic quickly hardens, allowing it to be extracted using a screen. The whole process takes just 5 seconds, compared to the several minutes than would be required by an ordinary 3D printer.

In addition to its increased speed, the printer also creates monocoque objects that don’t suffer from the weaknesses found in the “grain” between layers of 3-D objects. The process would also eliminate the need for supporting structures currently required to create some 3D objects.  Cont'd...

Beyond the Hype: What's Next for Industrial 3D Printing

Vicki Holt of Proto Labs via The Huffington Post:  It wasn’t long ago that 3D printing was one of the buzziest technologies around.  We watched as a 3D printer recreated a bust of Stephen Colbert on TV. We heard from industry analysts who were bullish on adoption of the technology. We imagined a future with a 3D printer in every home when major retailers began selling them online and in stores.

Fast forward to today. The potential of 3D printing remains enormous. Global spend on the technology is expected to climb from $11 billion in 2015 to nearly $27 billion in 2019. But with all of the early excitement now behind us, where does 3D printing stand today? And where will it go in the future?  It can be summed up in three key developments.  Cont'd... 

CES 2017 - MarkForged 3D prints metal

From CES 2017: From the company that revolutionized 3D printing with composite carbon fiber, comes a breakthrough in metal. The Metal X greatly accelerates innovation, delivering metal parts overnight using a new technology at a fraction of the cost. Leave 20th century manufacturing in the dust and create anything from industrial replacement parts to injection molds to working prototypes.

Using 3D Printing, Lithography & Soft Robotics: New Prosthetic Hands Made for $50 at Cornell

Bridget Butler Millsaps for  What’s so incredible about the soft robotic hand created by a team at Cornell? It can grip, sort, and sense what it is touching. But what’s truly astounding is the potential it offers in terms of price and prosthetics for the future. Bringing forth further innovation and progress to the world of robotics, at $50 one can see how it might have realistic, significant impact on numerous levels.

Dispelling the idea of robots as lovable but clunky machines with a steel and rigid grip, Cornell researchers have managed to create what looks like—and offers the feel of—a human hand. This means that the task list for robots may expand exponentially as they are able to handle more delicate items, to include items like food and other fragile products. This also means that they would be able to work with people without injuring them, such as in a medical setting.  Cont'd...

A Complete Review of Semiconductor Lasers And a Few Words About What You Can Do With a 5.6 W Semiconductor Laser

This is a detailed article about popular inexpensive semiconductor lasers and about what you can engrave and cut using a 5.6 W semiconductor laser, installed on a 3D printer or CNC machine.

With 3D printers and nanofingers, HP Labs builds a new future

Stephen Shankland for CNet:  Get ready for the third chapter in the book of Silicon Valley.

During the first chapter, innovation in Silicon Valley was about atoms, carving up silicon wafers into the electronic transistors that started the computing revolution. The second one, more ethereal, brought the triumph of internet services like Facebook and Google.

To be competitive now, a company must blend both approaches. That's the view of HP Chief Engineer Chandrakant Patel, who rose through the HP Labs ranks over 30 years to secure 151 patents and become the company's chief engineer.

"The 21st century will require Silicon Valley to be a cyber-physical valley," Patel said.  Cont'd...

How Blockchain will Transform the Enterprise

With machine-to-machine communication, how does one validate "identities" and secure data at such massive scale.

Hall Effect Technology Reaches a New Level

For electrical motors with variable speed drives, fine current control in varying operating temperatures improves speed and torque control and can also provide energy savings of up to 30% or more.

From OLED Encapsulation to Plagiarism Protection

When ultra-thin transparent varnishes are applied onto transparent foil tapes, defects in the coating can now be made visible immediately during the coating process. This is possible thanks to an inline detection system that uses fluorescence dyes.

This new 3D-printing pen draws with wood, copper, and bronze

James Vincent for The Verge:  3Doodler's 3D-printing pens have always had a lot of potential (who doesn't want a souped-up glue gun that can draw 3D structures in midair?), but in our hands-on with the pens, their rough build quality means they come across more as toys than serious design tools. The company's latest model, the 3Doodler Pro, wants to shake up this perception, offering professional users more control, faster-setting plastics, and a whole new range of materials to work with.

Some of the new filaments on offer are pretty wild, too. 3Doodler says the Pro supports materials including wood, copper, bronze, nylon, and polycarbonate. Obviously, this doesn't mean you'll be sticking a length of dowel in the back of the Pro to draw tiny pieces of wooden furniture — instead, these new materials blend elements of their namesake into the plastic standard filament.  Cont'd...

Going Beyond 3D Printing to Add a New Dimension for Additive Manufacturing

Lawrence Livermore National Laboratory:  A team of Lawrence Livermore National Laboratory researchers has demonstrated the 3D printing of shape-shifting structures that can fold or unfold to reshape themselves when exposed to heat or electricity. The micro-architected structures were fabricated from a conductive, environmentally responsive polymer ink developed at the Lab.

In an article published recently by the journal Scientific Reports (link is external), lab scientists and engineers revealed a strategy for creating boxes, spirals and spheres from shape memory polymers (SMPs), bio-based "smart" materials that exhibit shape-changes when resistively heated or when exposed to the appropriate temperature.

Lab researcher Jennifer Rodriguez examines a 3D printed box that was "programmed" to fold and unfold when heated

While the approach of using responsive materials in 3D printing, often known as "4D printing," is not new, LLNL researchers are the first to combine the process of 3D printing and subsequent folding (via origami methods) with conductive smart materials to build complex structures.  Cont'd...

Using Silicon in Lithium Ion Batteries to Increase Capacity

We have demonstrated the ability to electrospin liquid CHS into silicon nanowires that when blended with carbon lead to performance comparable to that achieved by CVD grown silicon nanowires but at reduced cost and simplified scaling.

New dual-step method provides 3D printing of conductive metals.

Shalini Saxena for ArsTechnica:  Customizable, wearable electronics open the door to things like heart-monitoring t-shirts and health-tracking bracelets. But placing the needed wiring in a complex 3D architecture has been hard to do cheaply. Existing approaches are limited by material requirements and, in the case of 3D writing, slow printing speeds. Recently, a research team at Harvard University developed a new method to rapidly 3D print free-standing, highly conductive, ductile metallic wires.

The new method combines 3D printing with focused infrared lasers that quickly anneal the printed nanoparticles into the desired architecture. The result is a wire with an electrical conductivity that approaches that of bulk silver.  Cont'd...

What Do Device Developers And Design Engineers Need To Know About Membrane Keypads And Touch Pads

The evolution of innovative input devices is far from over. New technologies and products are revolutionizing the market all the time.

Factory Automation Will Speed Forward with A.I., Says Bernstein

By Tiernan Ray for Barron's:  Bernstein Research’s Alberto Moel, who follows tech-industrial companies such as Corning(GLW) and AU Optronics (AUO), this afternoon offered up a thinks piece on robotics andfactory automation, arguing that some of the costs of automation beyond the basic cost of the robot are about to get dramatically cheaper, thanks in large part to artificial intelligence akin to what Alphabet (GOOGL) and others are doing.

Moel notes that the basic components of factory robots are only falling by perhaps 6% per year, their cost reduction bounded by things such as casings and servomotors and reduction gears that don’t rapidly fall in cost.

But, writes Moel, the cost to install and adjust these machines on a factory floor is ten times their component cost and that stuff can be reduced more dramatically:

How much this integration costs varies widely. An often-cited rule of thumb is that a $50,000 robot will need $500,000 of integration costs before it is all said and done. Of course, these integration costs can be amortized over many robots, so perhaps a better estimate would be 3-5x the robot cost [...] But I do believe we are at an inflection pointthat will materially increase the capability of automation systems and substantially reduce programming, setup, and fixturing costs which are the largest cost element in most automation efforts. So instead of a measly 6% YoY cost reduction , we get 25-30% YoY declines, and automation Nirvana.  Cont'd...

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