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The Lead

Unleashing the Power of 3-D Printing: Designing for Additive Manufacturability

November 19, 2014 1:44 pm | by Bill Camuel, Project Engineering Manager, RedEye | Articles | Comments

Additive manufacturing, widely known as 3-D printing, offers many advantages over traditional manufacturing methods such as injection molding and machining, which limit a part’s geometry and size. By freeing manufacturers from these design constraints, additive manufacturing helps create complex parts that spark innovation and save companies time and money.

Efficient method developed to measure residual stress in 3-D printed parts

November 17, 2014 10:08 am | by Kenneth Ma, LLNL | News | Comments

Lawrence Livermore National Laboratory researchers have developed an efficient method to measure...

Outside-the-box thinker

November 3, 2014 7:42 am | by Julia, Sklar, MIT News Correspondent | News | Comments

When an aspiring mechanical engineer on a budget wants a top-of-the-line guitar, what does he do...

Self-assembled membranes hint at biomedical applications

October 28, 2014 11:36 am | by David Lindley, Argonne National Laboratory | News | Comments

Techniques for self-assembling of molecules have grown increasingly sophisticated, but...

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Cooking up carbon: Sawdust and iron in the melting pot

October 24, 2014 10:16 am | News | Comments

Researchers in the U.K. have found a new way to make nanostructured carbon using the waste product sawdust. By cooking sawdust with a thin coating of iron at 700 C, they have discovered that they can create carbon with a structure made up of many tiny tubes. These tubes are one thousand times smaller than an average human hair.

New 3-D printing algorithms speed production, reduce waste

October 22, 2014 7:51 am | by Emil Venere, Purdue Univ. | News | Comments

New software algorithms have been shown to significantly reduce the time and material needed to produce objects with 3-D printers. Because the printers create objects layer-by-layer from the bottom up, this poses a challenge when printing overhanging or protruding features like a figure's outstretched arms. They must be formed using supporting structures—which are later removed—adding time and material to the process.

Starfish shell-mimicking crystals could advance 3-D printing pills

October 21, 2014 8:19 am | by Nicole Casal Moore, Univ. of Michigan | News | Comments

In a design that mimics a hard-to-duplicate texture of starfish shells, Univ. of Michigan engineers have made rounded crystals that have no facets. The team calls the crystals "nanolobes". The nanolobes' shape and the way they're made have promising applications. The geometry could potentially be useful to guide light in advanced LEDs, solar cells and non-reflective surfaces.

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Goldilocks principle wrong for particle assembly

October 20, 2014 9:32 am | by New York Univ. | News | Comments

Microscopic particles that bind under low temperatures will melt as temperatures rise to moderate levels, but re-connect under hotter conditions, a team of New York Univ. scientists has found. Their discovery points to new ways to create "smart materials," cutting-edge materials that adapt to their environment by taking new forms, and to sharpen the detail of 3-D printing.

Keeping an Eye on Quality

October 16, 2014 2:57 pm | by Olympus | Articles | Comments

A leader in the field of minimally invasive surgery device development operates state-of-the-art R&D and manufacturing facilities—facilities that depend on today’s most advanced quality assurance/quality testing procedures. To ensure all equipment leaving its production facilities meets the highest performance and reliability standards, the company relies on a QA/QC system made possible by industrial microscope and analyzer solutions.

Research reveals unique capabilities of 3-D printing

October 16, 2014 8:51 am | by Morgan McCorkle, Oak Ridge National Laboratory | News | Comments

Researchers at Oak Ridge National Laboratory have demonstrated an additive manufacturing method to control the structure and properties of metal components with precision unmatched by conventional manufacturing processes. The researchers demonstrated the method using an ARCAM electron beam melting system (EBM), in which successive layers of a metal powder are fused together by an electron beam into a 3-D product.

The new family portrait? 3-D-printed statue selfies

October 10, 2014 11:52 am | by Peter Svensson, AP Technology Writer | News | Comments

The advent of digital cameras and smartphones killed the traditional mall portrait studio, but 3-D printing has sparked a new trend. Overloaded with digital photos, statues may be moving in to fulfill our desire for portraits that stand out. New York's Museum of Art and Design offered scans and statues earlier this year. Shapeways, the company that supplied the exhibit, scanned about 6,000 people and sold about 1,500 statues for $30.

SpaceX launches space station supplies, first 3-D printer bound for orbit

September 22, 2014 9:01 am | by Marcia Dunn, The Associated Press | News | Comments

A SpaceX cargo ship rocketed toward the International Space Station on Sunday, carrying more than 5,000 pounds of supplies, including the first 3-D printer for astronauts in orbit. The printer, developed by Made in Space, is sturdier than Earthly models and is a technology demonstrator. . But NASA envisions astronauts one day using one to crank out spare parts as needed.

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Ceramics don’t have to be brittle

September 11, 2014 5:00 pm | by Kimm Fesenmaier, Caltech | News | Comments

Imagine a balloon that could float without using any lighter-than-air gas. Instead, it could simply have all of its air sucked out while maintaining its filled shape. Such a material might be possible with a new method developed at the California Institute of Technology that allows engineers to produce a ceramic that contains about 99.9% air yet is strong enough to recover its original shape after being smashed by more than 50%.

World’s first 3-D printed car being assembled at IMTS

September 10, 2014 6:15 pm | Videos | Comments

During the six-day IMTS manufacturing technology show in Chicago this week, the “Strati” will be the first vehicle printed in one piece using direct digital manufacturing. The process will take more than 44 hours of print time. A team including Local Motors, Cincinnati Inc. and Oak Ridge National Laboratory will then rapidly assemble it for a historic first set for Saturday.

Nanotechnology to provide cleaner diesel engines

September 9, 2014 8:32 am | by Bertel Henning Jensen, Technical Univ. of Denmark | News | Comments

When it comes to diesel engine catalysts, which are responsible for cleansing exhaust fumes, platinum has unfortunately proved to be the only viable option. This has resulted in material costs alone accounting for half of the price of a diesel catalyst. Researchers in Denmark say they have developed a new way to manufacture catalysts that may result in a 25% reduction in the use of platinum.

First graphene-based flexible display produced

September 5, 2014 12:03 pm | Videos | Comments

A flexible display incorporating graphene in its pixels’ electronics has been successfully demonstrated by the Cambridge Graphene Centre and Plastic Logic. The new prototype is an active matrix electrophoretic display, similar to the screens used in today’s e-readers, except it is made of flexible plastic instead of glass. This advance marks the first time graphene has been used in a transistor-based flexible device.

Yale journal explores advances in sustainable manufacturing

August 27, 2014 8:33 am | News | Comments

Life cycle engineering connects the engineers who grapple with the efficiencies of production processes, machine design, and process chains with the industrial ecologists who develop more over-arching methods of environmental assessment. In a recent issue of the Journal of Industrial Ecology, experts explore the latest research on sustainable manufacturing and how life cycle engineering is being used to reduce environmental impact.

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Pairing old tech with new for next-generation electronic devices

August 11, 2014 7:53 am | by Bex Caygill, Univ. College London | News | Comments

Univ. College London scientists have discovered a new method to efficiently generate and control currents based on the magnetic nature of electrons in semiconducting materials, offering a new way to develop a new generation of electronic devices. One promising approach to developing new technologies is to exploit the electron’s tiny magnetic moment, or spin.

Scanning Products into 3-D

August 6, 2014 9:47 am | by Lindsay Hock, Managing Editor | Articles | Comments

The global 3-D scanning market is estimated to grow from $2.06 billion in 2013 to $4.08 billion by 2018, at a CAGR of 14.6% from 2013 to 2018, according to a MarketsandMarkets report. Recent trends in the industry show 3-D scanning as improving, with a huge demand. And 3-D scanning with services like reverse engineering, rapid prototyping and quality inspection, makes it suitable for most verticals.

Thin diamond films provide new material for micro-machines

August 5, 2014 6:12 pm | by Jared Sagoff, Argonne National Laboratory | News | Comments

Most MEMS are made primarily of silicon for reasons of convenience, but they wear out quickly due to friction and they are not biocompatible. Researchers at Argonne National Laboratory and a handful of other institutions around the world have directed their focus on ultrananocrystalline diamond (UNCD), which are smooth and wear-resistant diamond thin films. Recent work opens the door to using diamond for fabricating advanced MEMS devices.

Exploring 3-D printing to make organs for transplants

July 30, 2014 11:48 am | News | Comments

With the help of conventional inkjet printers, scientists are reporting new understanding about the dynamics of 3-D bioprinting that takes them a step closer to realizing their goal of making working tissues and organs on-demand. Their recent work in testing bioinks filled with hydrogel and different concentrations of mouse fibroblasts shed light on how the inks behave when they’re dispensed through printer nozzles.

UConn makes 3-D copies of antique instrument parts

July 28, 2014 10:57 am | by Pat Eaton-Robb, Associated Press | News | Comments

The medical practice of Dr. Robert Howe, a reproductive endocrinologist in Massachusetts, introduced him to how computerized tomography could make precise 3-D images of body parts. As a student of music history, he realized the same technology could help him study delicate musical instruments from the past. With the help of engineers, these rare instruments are now being both imaged and printed printed in 3-D.

Southwest Research Institute to lead joint industry project for separation tech

July 23, 2014 8:03 am | News | Comments

The launch of a multi-million dollar joint industry project this week by Southwest Research Institute (SwRI) aims to better understand oil and gas separation technology. The Separation Technology Research Program (STAR Program) is a three-year effort open to operating companies, contractors and equipment manufacturers, and will combine industry knowledge and resources to advance research.

3-D printed anatomy to mark a new era for medical training

July 14, 2014 11:32 am | News | Comments

The creators of a unique kit containing 3-D printed anatomical body parts say it will revolutionize medical education and training, especially in countries where cadaver use is problematic. The “3D Printed Anatomy Series”, developed by experts in Australia, is thought to be the first commercially available resource of its kind. The kit contains no human tissue, yet it provides all the major parts of the body required to teach anatomy.

Agile Aperture Antenna tested on aircraft to survey ground emitters

July 11, 2014 8:02 am | by John Toon, Georgia Institute of Technology | News | Comments

The Georgia Tech Research Institute’s software-defined, electronically reconfigurable Agile Aperture Antenna (A3) has now been tested on the land, sea and air. Dept. of Defense representatives were in attendance during a recent event where two of the low-power devices, which can change beam directions in a thousandth of a second, were demonstrated in an aircraft during flight tests held in Virginia during February 2014.

New technology offers precise control of molecular self-assembly

July 10, 2014 5:09 pm | News | Comments

A research group based in Japan has developed a new methodology that can easily and precisely control the timing, structure, and functions in the self-assembly of pi-conjugated molecules, which are an important enabling building block in the field of organic electronics. One of the key steps is keeping these molecules in a liquid form at room temperature.

Artificial cilia: Scientists develop nanostructured transportation system

July 7, 2014 3:40 pm | News | Comments

For billions of years, bacteria have moved themselves using cilia. Now, researchers have constructed molecules that imitate these tiny, hair-like structures. The innovation was possible by nanofabricating artificial cilia that would respond in just one direction to provide a net displacement of motion.

Study: Power consumption of robot joints could be 40% less

July 7, 2014 2:24 pm | News | Comments

Digital controllers are used to drive the motors of the joints in robots used in industrial processes. Programming and developing these controllers is not easy. Researchers in Spain have analyzed a way of propelling these systems or robots in a more energy-efficient way and has shown, on a laboratory level, that in some cases energy consumption can be cut by up to 40% without sacrificing precision.

Researchers develop new ultra-light, ultra-stiff 3-D printed materials

June 19, 2014 4:11 pm | by Kenneth Ma, LLNL | News | Comments

Imagine a material with the same weight and density as aerogel—a material so light it's called “frozen smoke”—but with 10,000 times more stiffness. This material could have a profound impact on the aerospace and automotive industries as well as other applications where lightweight, high-stiffness and high-strength materials are needed.

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