Tri-Tronics has published an updated catalog detailing their complete lines of Photoelectric Sensors, Fiber Optic Light Guides and Controls, including a wide variety of newly-introduced products. The new PG-50 Catalog makes it easy to select the best product to fit a particular sensing application, and features easy-to-use product selection guidelines, detailed sensor application drawings, comprehensive product descriptions, specifications and installation data, and fundamentals of photoelectric sensing. Copies are available at no cost. Tri-Tronics Co. Inc. http://rbi.ims.ca/4912-539
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
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.