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October 01, 2013Volume 09 Issue 37


Image - Stainless Steel Retaining Rings from Stock
Stainless Steel Retaining Rings from Stock
Smalley has over 6,000 Spirolox® Retaining Rings in 302 and 316 stainless steel from stock in 1/4" to 16" diameters. Specials can be manufactured from .200" to 120". Smalley's manufacturing process allows for the economical production of stainless steel retaining rings. Spiral type retaining rings are interchangeable with standard snap ring grooves and have No Ears To Interfere™ with the assembly. Free samples are available of stock parts to test in your application.
Click here to learn more.

In this issue of Designfax

  • Metal bellows as spring replacements
  • Rotary ball spline technologies
  • Robo Raven gets independent wing control
  • Wheels: Army's tactical vehicle showdown
  • Mike Likes: Brighter, stronger, cooler flip-chip LEDs
  • Engineer's Toolbox: Autodesk Remote goes global
  • Riveting, spot welding alternatives
  • Pneumatic cylinders with self-adjusting cushioning
  • Friction positioning hinges
  • Videos+: Technologies and inspiration in action
    • Microfactory: 3D printer + CNC milling machine
  • Most Popular Last Issue
    • Human-powered helicopter wins $250,000 challenge
    • Dangers, illegality of using E15 fuel blends
    • Storing wind and solar power on the grid
  • New Products
    • Electrical, Mechanical, Motion
    Cover Image: Joint Light Tactical Vehicle (JLTV) prototypes face off in the U.S. Army's tactical vehicle showdown.

News

Inspired by pasta: Wagon-wheel 'rotelle' shape makes for better LEDs

Alcoa's breakthrough automotive aluminum bonding technology named industry's best

DARPA seeking ideas on reusable, unmanned spaceplanes to deliver satellites to orbit

Does your leadership create a culture of exile? 5 warning signs when employees may lack a vital sense of belonging



Image - Vrtex 360 Welding Simulator Reduces Cost of Training
Vrtex 360 Welding Simulator Reduces Cost of Training
Arc welding processes require the welder to use good workmanship in order to produce sound welds. Learning the skill requires time and patience, along with a significant volume of supplies. In an effort to reduce the cost of training and train welders faster, the Lincoln Electric Co. along with software development partner VRSim developed the VRTEX 360 welding simulator. The simulator uses MICROMO stepper motors to retract the electrode in a simulated handpiece, allowing the user to experience the sights, sounds, and motions of welding.
Read the full article.

Feature articles
Precision metal bellows used as spring replacements in mechanical and electrical applications
Servometer metal bellows are used for metallic hermetic seals, volume compensators, pressure and temperature sensors, flexible connectors, and countless other applications where quality, dependability, and long life are critical requirements. In this article, we evaluate the use of an electrodeposited metal bellows as a replacement for a metal spring in mechanical and electrical systems. The bellows offers various benefits to create a cost-effective, repeatable solution.
Read the full article.
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2014 Cool Parts Calendar.


Image - Rotary ball spline technologies and the effective differences of two rotational nut technologies
Rotary ball spline technologies and the effective differences of two rotational nut technologies
Before you specify a rotary ball spline, ask the question, "Should the rotary spline nut be riding on angular contact ball bearings or crossed roller bearings?" Naoki Yamaguchi, assistant technical manager, NB Corporation of America, answers this and a host of other considerations.
Read the full article.

Image - Independently controlled wings take robotic bird maneuverability to new heights
Independently controlled wings take robotic bird maneuverability to new heights
In this age of advanced technology, how hard could it be to develop a robotic bird that flies by flapping its wings? Despite the apparent simplicity of the idea, it's very hard -- if you want the bird to actually fly. And how hard could it be to make a robot bird whose wings can flap independently of each other? So hard that this breakthrough has been out of reach for engineers -- until now.
Read the full article.

Image - Wheels: <br>3-way showdown -- Army's Joint Light Tactical Vehicle prototypes testing begins
Wheels:
3-way showdown -- Army's Joint Light Tactical Vehicle prototypes testing begins

Oshkosh Defense, Lockheed Martin, and AM General are going head to head in the Army's full-scope testing of the Joint Light Tactical Vehicle (JLTV) prototypes. Each of the three vendors delivered 22 vehicles and six trailers for testing to three sites: Aberdeen Proving Ground, Md.; Yuma, Ariz.; and Redstone Arsenal, Ala.
Read the full article.

Image - Mike Likes: <br>Brighter, stronger, cooler flip-chip LEDs
Mike Likes:
Brighter, stronger, cooler flip-chip LEDs

TitanBrite Wireless Bonded LEDs from Lumex feature "flip chips" that are up to 15 percent brighter than any others in the market. In addition to the standard 3-W and 6-W LEDs, Lumex's TitanBrite Wireless Bonded LED is also available in 9 W. Wireless bonded LED technology, also referred to as "flip chip," offers several key performance benefits over traditional surface-mount technology (SMT) LEDs, including enhanced durability, enhanced heat dissipation, and superior light performance. A flip-chip LED is up to 15 percent brighter, 5x stronger, and 25 percent cooler than alternative technologies. Applications include: automotive interiors, appliance backlighting, industrial control lighting, medical lighting, signage, construction, and military.
Click here to learn more.

Image - Engineer's Toolbox: <br>Autodesk Remote goes global
Engineer's Toolbox:
Autodesk Remote goes global

This summer, Autodesk introduced a new technology called Autodesk Remote for its Subscription customers in North America. Now, the company is rolling it out broadly to Autodesk Subscription customers worldwide. Autodesk Remote allows users to drive Autodesk software installed on their primary computer from a remote PC or iPad, utilizing its full power in their 3D design and modeling work regardless of the device.
Read the full article.

Image - Product Spotlight: <br>Great alternatives to riveting or spot welding
Product Spotlight:
Great alternatives to riveting or spot welding

PEM SpotFast self-clinching fasteners enable two sheets to be joined permanently in a flush-attachment connection without protrusions on either side. These practical alternatives to riveting or spot welding provide ideal solutions to attach two metal sheets too thin to weld, fasten sheets of unequal thicknesses, join dissimilar metals, attach ultra-thin metal sections, or join metal sheets to PCB or plastic panels. Their rotational capability offers additional application advantages by allowing the fastener to act as a hardened pivot point. SpotFast fasteners install smooth with the top sheet and flush or sub-flush with the bottom sheet. Can be installed in aluminum or steel sheets as thin as .030 in./0.8 mm.
Click here to learn more.

Image - Product Spotlight: <br>Pneumatic cylinders with self-adjusting cushioning
Product Spotlight:
Pneumatic cylinders with self-adjusting cushioning

Festo's DSBC family of ISO 15552 standard pneumatic cylinders all feature the company's unique self-adjusting cushioning capability (called PPS) that works via exhaust slots in the cushioning boss. PPS eliminates the time-consuming back and forth typically required during the adjustment stage of installing pneumatic cylinders. This self-adjusting ability ensures optimum cushioning performance at all times without the need for any manual intervention -- even for changes in parameters such as friction and pressure, thus reducing wear and vibration.
Click here to learn more.

Image - Product Spotlight: <br>Friction positioning hinges provide constant torque for precise control
Product Spotlight:
Friction positioning hinges provide constant torque for precise control

RT Series friction positioning hinges from Reell provide constant torque throughout their full 360-degree range of motion to precisely control and hold the angle of mounted components in any position. These hinges carry an industry-leading guaranteed service life exceeding 50,000 cycles. They integrate patented ReellTorq clip technology for a premium quality feel and smooth and precise position control without requiring adjustment during installation. Typical applications include motion and positioning of a display or access panel within a wide range of equipment and systems in the medical, aerospace and aviation, automotive, electronics, architectural lighting, and POP and POS industries. Three standard product families deliver successively more powerful torque capabilities.
Click here to learn more.

Most popular last issue

Image - Bigger really is better: <br>'Impossible dream' achieved in Sikorsky human-powered helicopter challenge
Bigger really is better:
'Impossible dream' achieved in Sikorsky human-powered helicopter challenge

After 33 years of trying, a team has finally won the American Helicopter Society (AHS) Igor I. Sikorsky Human-Powered Helicopter Competition -- and its $250,000 prize! The challenge: fly a human-powered helicopter above 3 m and hover for more than 60 sec in a 10-m x 10-m space. Canadian team AeroVelo Inc., comprised largely of students at the University of Toronto, flew its extremely novel (and huge!) ATLAS pedal-powered helicopter for 64 sec June 13. A single pilot powered the craft, which featured four, nearly 70-ft rotors attached to a 115-lb carbon-tube and polymer frame. The AHS first issued the human-powered flight challenge in 1980, with an initial prize of $10,000. More than 20 human-powered helicopters have been designed and built since the competition began, though only a handful have gotten off the ground. Officials from AHS International verified the flight data over several weeks and concluded that it met all of the criteria necessary to win the competition. Sikorsky increased the prize to a quarter-million dollars in May 2009. Who would have guessed that this would be the winning design? Incredible.
View the Sikorsky video.
Trade group warns about dangers, illegality of using E15 fuel blends in power equipment, small-engine products
The EPA has approved the introduction of some mid-level ethanol blends (E15, E30, E85) for use in a small subset of automobiles in an effort to comply with the federal renewable fuel mandate; the problem is that these higher ethanol fuel blends may be dispensed alongside current fuels, but they are illegal and risky to use in hundreds of millions of small-engine products and applications.
Read the full article.
Stanford scientists calculate the energy required to store wind and solar power on the grid; wind not worth it
A new study finds that it may be better for the environment to temporarily shut down a wind turbine than to store the surplus electricity it generates.
Read the full article.

Videos+: Technologies and inspiration in action
Microfactory is 3D printer and CNC milling machine all in one
What's a Mebotics Microfactory? Well if you are the four guys who have dreamed up and built the device, it's a 3D printer and CNC milling machine all in one. Made "by makers for makers," the Microfactory is described as a networked, easy-to-operate, affordable, mess-free, quiet, and safe desktop machine capable of printing functional parts in four colors or multiple materials and computerized etching and computer-controlled milling. It's a Kickstarter project, and if it has any real legs, well, you be the judge.
View the video.

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