"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
IoT Inspector is a new tool from Princeton's computer science department; it snoops on the traffic from home IoT devices and performs analysis to determine who they phone home to, whether they use encryption, and what kinds of data they may be leaking.
EU and Nigerian law both ban the export of e-waste to Nigeria, but a new study jointly authored by scholars from UN University and the Basel Convention Coordinating Centre for Africa found that exported used cars represent a smuggler's bonanza for the illegal dumping of toxic waste.
A group of Belgian academic security researchers from KU Leuwen have published a paper detailing their investigation into improving the security of neurostimulators: electrical brain implants used to treat chronic pain, Parkinson's, and other conditions.
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