Leland Teschler

Machine Design

Leland serves as Editor-in-Chief of Machine Design. He has 34 years of Service and holds a B.S. Engineering from the University of
Michigan, a B.S. Electrical Engineering from the University of Michigan;, and a MBA from Cleveland State University. Prior to joining Penton, Lee worked as a Communications design engineer, for the U.S. Government.

Bell-Everman Rotary Stages Usher in Chair-Side Dental Crowns
A compact milling machine for making ceramic dental crowns owes its small size and economical nature to the use of rotary rather than linear stages.
BAW gyro chip
Gallery: Cool sensor technology of the week
The Sensors Expo in Chicago gave sensor and device makers a chance to show off novel applications for sensing technology. Here are a few of the more notable demonstrations we noticed.
The Coming IQ Gap 1
Here is a mind game to ponder: It is well known that Google founders Larry Page and Sergey Brin have high IQs. Both sets of their parents are college educated and either academics or researchers. So which factor was more important in the success of these two technologists, their God-given cognitive talents, or their middle-class upbringing by people who could rightly be called intellectuals?
Could Magnetic Gears Make Wind Turbines Say Goodbye to Mechanical Gearboxes? 1
Magnetic gears can be overtorqued with the only deleterious effect being a slipping between the input and output. And they promise to be no bigger than their mechanical counterparts.
Gallery: Innovative 3D printing technology at Rapid 2014

The Society of Manufacturing Engineers' Rapid 2014 conference and expo hosted a variety of new 3D printing technologies, many of which had nothing to do with ink jets or laser-melted powder metals. Here is an overview of some of the novel applications and techniques on display 

Energy Efficiency Drops Off the Radar for Semiconductor Fabs
Back in 2012, the International Sematech Manufacturing Initiative (ISMI) conducted a Worldwide Fab Energy Study to help semiconductor manufacturers reduce their energy use and boost efficiency. But judging by the tone of the upcoming Semicon West show for semiconductor manufacturing, energy efficiency has lost its marquee billing when the topic turns to sustainability.
Off-shoring’s Logical Conclusion 9

The semiconductor-manufacturing industry’s Semicon West Show kicks off next month, so perhaps it’s time to point out a big mistake in the Wikipedia listing for one of that industry’s prime movers. Look up Applied Materials Inc.

Gallery: Drones and UAVs at the AUVSI show 2
The recently concluded Association for Unmanned Vehicle Systems International show provided many examples of cutting-edge drone technology
Spirit of Detroit statue to get 3D scanned 1

If you happen to be in the downtown Detroit area on Thursday May8, you might be able to get a glimpse of the Spirit of Detroit statue as it gets 3D scanned. Engineering services house CAM Logic Inc. will scan the Spirit of Detroit Statue in front of the Coleman A. Young Municipal building to create a miniature-size statue using 3D printing. CAM Logic plans to use a A laser scanner will scan the statute and create a digital model. The scanner is composed of two pieces of equipment — the tracker and the scanner.

Gallery: 3D-printed part roundup 2
Recent examples of 3D printed parts include electrostatic loudspeakers, objects knit from yarn, sensors, and printed electronic components.
Gallery: Crowd sourced projects of the week - Desktop CNC, nat-gas Mustang, A/C app, and a portable wind turbine
Engineering projects that include a desktop CNC, a natural gas-powered Mustang, a smart phone A/C app, and a portable wind turbine are making the rounds on crowd-sourcing sites.
When Flexible Cable Doesn’t Flex for Long
When science-fiction writer Isaac Asimov first penned stories about positronic robots in the 1940s, it’s doubtful he could have foreseen that one of the weak points real robots would have is relatively mundane: the cabling used to connect their moving parts. This wiring can flex millions of times in normal use.
If Starbucks behaved like a manufacturer 8

Pity me. I’ve just learned I must sit through six online management-training courses every quarter. I just finished my first experience with this new requirement and it has lived up to my worst expectations.

Slide show: Scenes from the SAE World Congress 2014
Interesting technologies on display at the Society of Automotive Engineers show this year ranged from piston engines without connecting rods to dual-clutch transmissions and A/C evaporators that work even when the engine is off.
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