When John Dawson turns on his table saw
he wants a Shop-Vac®
to automatically turn on, too. He might have controlled a duplex outlet
from a wall switch, but where's the fun in that? Instead, he uses a Hall-Effect
sensor to detect current flow in the saw's power cord and then turn on the
vacuum cleaner via a relay. John's design adapts well to other control
situations, too. Don't get sucked into a simple switch circuit.
Most machine design engineers will survey existing component manufacturers for standard linear guide products, limiting what they can do with their designs. Using extruded aluminum profile guides can customize machine designs while shrinking the bill of materials.
Practically all electronic devices today contain metals that may
be coming from conflict-ravaged African countries. And political pressures will increasingly influence how these minerals are sourced and used in products.
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.