ITT Industries, Cannon (www.ittcannon.com) has introduced a 4-mm diameter dome switch capable of up to 2.5 million operations, compared to the dome life cycle of 250,000 to 500,000 operations typically required for cell phones. The company says the difference is important to cell phone makers who are incorporating gaming functions into 3G and WAP phones, thus demanding longer dome life. Keys to the new dome's performance include the nominal actuating trip force of 160g, which was exceeded by nearly fourfold (600g) during testing, the company says.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
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