Celcon(reg) M90(TM) acetal copolymer is used in motorized automotive seat belt height adjusters. The cylindrical speed-reducing transmission is 1.44 inches in diameter, weighs 1.5 oz, and consists of 14 injection-molded acetal gears. Celcon acetal provides fatigue endurance, dimensional stability, wear resistance, hardness, strength, stiffness, and resistance to lubricants.
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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