Size, geometry and cost constraints posed problems for design engineers at Gyrus Medical in Minneapolis MN, when designing the jaws for a single-use bipolar open-forceps surgical instrument that uses RF energy. Tight tolerances over the length of the part (about 4.5 inches) were also an issue. The instrument will only perform properly if the surfaces remain parallel. Gyrus looked at casting and machining before choosing metal-injection molding. "Any time we need that kind of accuracy, we're going to look for a MIM-molded part," says Craig Stowell, director of engineering for Gyrus Medical. Phillips Plastics developed custom ceramic fixtures to support the parts to eliminate sagging during the production process. The parts then went through a calibration process to meet final print specifications.
Festo's BionicKangaroo combines pneumatic and electrical drive technology, plus very precise controls and condition monitoring. Like a real kangaroo, the BionicKangaroo robot harvests the kinetic energy of each takeoff and immediately uses it to power the next jump.
Design News and Digi-Key presents: Creating & Testing Your First RTOS Application Using MQX, a crash course that will look at defining a project, selecting a target processor, blocking code, defining tasks, completing code, and debugging.
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.