"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
Mian Wei, a Chinese student at the Rhode Island School of Design, has created an experimental series of fake fingertips with randomly generated fingerprints that work with Apple and Android fingerprint authentication schemes, as well as many others.
Ethan Zuckerman — formerly of Global Voices, now at the MIT Center for Civic Media — has spent his career trying to find thoughtful, effective ways to use technology as a lever to make positive social change (previously), but that means that he also spends a lot of time in the company of people making […]
For years, the NYPD and other police departments have justified the highly racialized practice of stop-and-frisk and zero-tolerance approaches to turnstyle hopping, etc, by citing the “broken windows” theory of policing — the idea that if the police stop petty crime, major crime will follow.
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Some truths are universal. For one, your phone will always run out of power when you most need it. For another, the charging cords that come packaged with your Apple device will fray, split, and rip faster than Usain Bolt in a game of tag.Instead, pick up a charging cord that anyone would have a tough […]