Compumotor has developed a direct drive rotary servo system that's the most compact in the company's Dynaserv line. Each consists of a brushless servo motor with 10-ft of motor and encoder cables, microprocessor-based drive, power supply, and an incremental encoder. Offered in both 4-inch and 6-inch diameter versions, they are available in speeds up to 2.5 rps and resolutions up to 655,360 positions per revolution. Axial and radial runout measures 10 mm--10 times better than the Dynaserv DR and DM series--with 5 mm available. Applications include scanning, semiconductor processing, disk drive assembly, rotary indexing, industrial robots, and low-speed inspection. Parker Hannifin, Compumotor Division, Product Code 4173.
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.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.