When you want to sleep in during a cold winter morning - but the dog needs to get out of its crate - you can turn to Les Kelly's Easy Out Gadget. Click a controller and the dog's door opens while you get a few more zzz's.
The controller works from many floors away. Once you push the button, the door pops open and out comes pooch flying up to greet you - or run out the doggy door. The build instructions are relatively easy and this gadget requires few parts.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
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.