AutomationDirect has extended
its industrial sensors to include the PEW series of stainless steel dc proximity sensors. The shielded 8 mm sensors are flush-mountable
and feature a 2 mm sensing range. Available with either M8 or M12 quick
disconnects, they are equipped with LED status indicators visible at wide
angles, and have PNP outputs. Also added are the LF40 series rectangular
inductive dc proximity sensors. Two shielded and two unshielded models are
available with 20 or 35 mm sensing ranges. The rectangular plastic PNP sensors
provide either normally-open or normally-open/normally-closed complementary
outputs. LF40 series sensor prices start at $39.
An envelope is a common packaging item, usually made of thin flat material. It is designed to contain a flat object, such as a letter or card.
Traditional envelopes are made from sheets of paper cut to one of three shapes: a rhombus, a short-arm cross, or a kite. These shapes allow for the creation of the envelope structure by folding the sheet sides around a central rectangular area. In this manner, a rectangle-faced enclosure is formed with an arrangement of four flaps on the reverse side.
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.