Beyond Flat Cable: Internal cable
harnesses are less prone to damage. Along with "flatter" cross section
conductor wires, enforcement at bend point using rubbing and support
strips contributes to long life.
Problems occur with motion control positioning stages when drive and signal cables chafe or are bent too tightly, or when location of cable connectors makes servicing difficult. External cables are prone to damage by moving equipment or personnel and internal cables can take up useful volume.
To alleviate these concerns, engineers at Primatics have developed the PrimaFlex™ internal cable management system that relies on a proprietary wire harness cable design for long life—while at the same time taking up minimal internal volume to make room for other systems such as I/O cables or vacuum lines for component-handling effectors.
Mechanical Engineering Manager Phil Williams notes in looking at high-flex round conductor ribbon cables based on the technology in printers and plotters, the design team could only come up with a lifetime 20 percent of the 100 million flex cycles needed. Part of the solution was to use a laminated polyester cable where the conductor strands have a flat, high aspect ratio of 0.003 inches in height and 0.026 inch in width. The engineers also noted that with longer cable lengths and high velocity motion, the cables are not stiff enough to "push" themselves—hence the use of high-performance thermoplastic strips molded onto the cable to help support it where needed. In addition, strips of thermoplastic are placed on covers and other areas to act as low friction bearing surfaces where the cable (with a similar protective layer) might rub against.
The promise of the Internet of Things (IoT) is that devices, gadgets, and appliances we use every day will be able to communicate with one another. This potential is not limited to household items or smartphones, but also things we find in our yard and garden, as evidenced by a recent challenge from the element14 design community.
If you didn't realize that PowerPoint presentations are inherently hilarious, you have to see Don McMillan take one apart. McMillan -- aka the Technically Funny Comic -- worked for 10 years as an engineer before he switched to stand-up comedy.
The first Tacoma Narrows Bridge was a Washington State suspension bridge that opened in 1940 and spanned the Tacoma Narrows strait of Puget Sound between Tacoma and the Kitsap Peninsula. It opened to traffic on July 1, 1940, and dramatically collapsed into Puget Sound on November 7, just four months after it opened.
Noting that we now live in an era of “confusion and ill-conceived stuff,” Ammunition design studio founder Robert Brunner, speaking at Gigaom Roadmap, said that by adding connectivity to everything and its mother, we aren't necessarily doing ourselves any favors, with many ‘things’ just fine in their unconnected state.
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