Mechanical torque limiters have been employed for many years as a simple and reliable means of torque overload protection in case of machine jams and crashes. The actuation ring moves to trigger the external sensor. With a compact, simple design, they are absolutely backlash-free and torsionally rigid, providing sound insurance against costly machine down time resulting from broken tooling, components, etc.
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.