The DI18 brushless dc motor is for computer peripheral, medical and laboratory equipment, fan, blower, and pump applications. The motor features a three-phase system with a neodymium magnet for high temperatures, no brush wear, low inertia rotor for quick stop and start applications, and a rugged aluminum construction. The motor is available in four sizes: 1.8 inches, 6 oz; 2.3 inches, 9 oz; 2.8 inches, 12 oz; and 3.3 inches, 15 oz. Depending on size, continous stall torque measures 9 to 28 oz per inch. Optional features include two-wire control.
Comair Rotron, 2675 Customhouse Ct., San Ysidro, CA 92153, FAX (619) 661-6057.
Conventional wisdom holds that MIT, Cal Tech, and Stanford are three of the country’s best undergraduate engineering schools. Unfortunately, when conventional wisdom visits the topic of best engineering schools, it too often leaves out some of the most distinguished programs that don’t happen to offer PhD-level degrees.
Airbus Defence and Space has 3D printed titanium brackets for communications satellites. The redesigned, one-piece 3D-printed brackets have better thermal resistance than conventionally manufactured parts, can be produced faster, cost 20% less, and save about 1 kg of weight per satellite.
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