83-Year-Old Inventor Wins $40,000 3D Printing Competition
harrymcc writes "The Desktop Factory Competition was a contest to create an open-source design for a low-cost machine capable of turning cheap plastic pellets into the filament used by 3D printers, with a prize of $40,000. The winner is being announced today — and he was born during the Hoover administration. I interviewed 83-year-old retiree Hugh Lyman — a proud member of the maker movement — for a story over at TIME.com. From the article: 'Lyman describes himself as an “undergraduate engineer” — he studied engineering from 1948-1953 at the University of Utah, but didn’t earn a degree. Though he holds eight patents, he says he’s “not educated enough to be able to do calculations of torque and so forth.” So implementing his contest entry “was trial and error. I tinkered with it and used common sense.”'"
I'm glad some people still attempt projects like these without engineering degrees.
Accumulating the knowledge so you didn't need trial and error probably took a fair bit of trial and error to start out with though. :)
That's why as an engineer you should consider performing a Failure Modes Effects and Criticality analysis (FMECA). Quite often you can predict the error, and account for it. Sometimes you account for the error by adding in additional maintenance/inspections, other times you have spares, sometimes you perform preventative maintenance, and sometimes you put a net underneath the bridge.
Let's assume your bridge is being constructed from stone (longevity or maintenance reasons), you know that it will eventually erode, crack, and wear out, but you build into your design features which are intended to help delay the failure, or allow for a graceful failure. So instead of designing your bridge to be covered with paint because that would block some of the environment, you forgo the protective paint and leave it exposed to the elements because now you can send a crew to inspect the bridge every 5 years for cracks/erosion/damage which might have been obscured by the paint. While the paint might have extended the life of the bridge by 10 years in ideal situations, being able to inspect the bridge might allow you to discover the crack which would cause a catastrophic failure at life-5 years.
Sometimes you have to accept error as part of the design because correcting that error might compromise other aspects of the design.
Out of modpoints but really liked a post? 1BDkF6TtmmeZ3yqXbz9yhdYVqRYnwFoXDj
spent 5 years at The University of Utah studying engineering? Sorry, but you learn that in your freshman year. Great story, but that part is laughable. As a Mechanical Engineering graduate '93 from WSU I know what the hell I'm talking about, just like a person above me claiming the guy is lying.