FreeCAD(freecad.org)
366 points by doener | 161 comments
Homepage of FreeCAD, an open-source parametric 3D CAD modeling application, showing gear models, sketches and toolpaths.
#engineering on Hacker News
6 stories tagged engineering, newest first.
14-year-old Miles Wu folded origami pattern that holds 10k times its own weight(smithsonianmag.com)
864 points by bookofjoe | 184 comments
Smithsonian magazine article about 14-year-old Miles Wu, whose Miura-ori origami variant holds 10,000 times its weight, aimed at emergency shelter design.
Why it's so hard to build a jet engine(construction-physics.com)
411 points by mhb | 198 comments
A Construction Physics essay by Brian Potter explaining why designing and manufacturing jet engines is so difficult.
What Boeing did to all the guys who remember how to build a plane(prospect.org)
735 points by doom2 | 446 comments
American Prospect article by Maureen Tkacik on how Boeing's management drove out experienced engineers and workers who knew how to build planes.
Ask HN: Do you also marvel at the complexity of everyday objects?
322 points by parpfish | 240 comments
Ask HN thread where the poster reflects on the hidden complexity of making everyday items like a spool of wire and asks others for similar examples.
Wavy walls use fewer bricks than a straight wall (2020)(twistedsifter.com)
583 points by caiobegotti | 247 comments
TwistedSifter article explaining how wavy crinkle-crankle walls, popular in England, use fewer bricks than straight walls while remaining stable.