Across America in
12,000 Solar Cells
Flying day and night, the Solar Impulse aircraft
made history when it completed a revolutionary
flight across America without a drop of fossil fuel.
17 Special Section
2013 Prototyping Directory
A listing of prototyping, services, software,
hardware, and materials providers.
22 Engineering Answers
Coming to a Desktop
The world of 3D printing has a growing
presence in the mainstream market, but not
all printers are created equal. In a head-to-head
review, we discover how two cutting-edge
3D printers measure up.
30 Engineering Answers
Above the RIM
Although there are varying forms of injection
molding, reaction injection molding at Premold
provides vertically integrated, easily customizable
processes for product development.
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