Thrill-seeking engineers are now taking advantage of new propulsion systems in their mission to scare people to death. Top Thrill Dragster, at Cedar Point Amusement Park in Sandusky, OH—the world's largest and fastest roller coaster—uses a hydraulic launch system to hurtle passengers from 0 to 120 mph in the 4-second launch period and to pull the 16 passenger trains up a 420-ft hill. Thanks to PLCs and an advance monitoring system, up to six trains can run on the tracks at the same time.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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