In video bellow Stratasys 3D Printer is used to created the wing structure for an Unmanned Air Vehcile (UAV). Then an Optomec Aerosol Jet System is used to print electronics onto the wing structure including an RF antennae, sensor, and circuitry to power a propeller and LED. All electronic are functional. The RF antennae broadcasts live video from a camera to remote display screen.
Here is the same technology in action at Sirris:
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