"Stress Relief: Improving Structural Strength of 3-D Printable Objects," a paper presented at SIGGRAPH 2012 from Purdue University's Bedrich Benes demonstrated an automated system for predicting when 3D models would produce structural weaknesses if they were fed to 3D printers, and to automatically modify the models to make them more hardy.
Findings were detailed in a paper presented during the SIGGRAPH 2012 conference in August. Former Purdue doctoral student Ondrej Stava created the software application, which automatically strengthens objects either by increasing the thickness of key structural elements or by adding struts. The tool also uses a third option, reducing the stress on structural elements by hollowing out overweight elements.
"We not only make the objects structurally better, but we also make them much more inexpensive," Mech said. "We have demonstrated a weight and cost savings of 80 percent."
The new tool automatically identifies "grip positions" where a person is likely to grasp the object. A "lightweight structural analysis solver" analyzes the object using a mesh-based simulation. It requires less computing power than traditional finite-element modeling tools, which are used in high-precision work such as designing jet engine turbine blades.
New Tool Gives Structural Strength to 3-D Printed Works
Writing in The Journal of Health Economics, three economists claim (Sci Hub mirror) that "a one standard deviation reduction in daily stock market returns is associated with a 0.6% increase in fatal car accidents that happen after the stock market opening" and that this is robust across "a battery of falsification tests."
The latest installment of the always-delightful McMansion Hell (previously) departs from the usual format of mercilessly skewering the tasteless custom homes of the contemporary super-rich and instead delves into their historic precedent, the 1970s-vintage "proto-McMansion," AKA the "Styled Ranch."
For decades, the "bystander effect" (previously) has been a bedrock of received psychological wisdom: "individuals are less likely to offer help to a victim when other people are present; the greater the number of bystanders, the less likely it is that one of them will help."
With millions out of work, the global economy in a sharp recession, and legitimate fears for the future abound, you might think this is absolutely the worst time to strike out on your own and be your own boss as a work-for-hire freelancer. But according to numbers compiled by financial services company Payoneer, the current […]
For years, dirty countertops, appliances, or bathroom fixtures were just kind of gross. But unkempt corners of your kitchen and bathroom aren’t just a sign of laziness anymore. Now, they’re a potential breeding ground for infectious disease. You can’t just limp through cleaning these days. You’ve gotta get rigorous about it, which means it’s no […]
Hunting around for an outlet or a power battery when you’re trying to charge your phone or tablet is always an annoyance. But when you’re out in the world hiking or camping or traveling, finding an outlet might be more than a minor inconvenience…it might be downright impossible. Running low on battery power isn’t an […]