Laser technology is expanding in construction, helping bulldozer operators smooth sites. Caterpillar Inc. (www.cat.com) is now offering the AccuGrade laser system, which can guide dozers to create surfaces that have only a 6 mm deviation. Once a transmitting laser is set to the desired elevation, it sends signals to masts mounted on the dozer blade. That input is sent to the controller module, which directs the hydraulic system that moves the blade.
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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