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Retrotechtacular: The (Long, Arduous) Birth of a Tank
Throughout the 1950s and early 1960s, the United States Army provided regular status reports to both its interior members and the American public through a half-hour documentary television show called...
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Retrotechtacular: Brunswick Shows A Bias for Tires
Somewhere between the early tires forged by wheelwrights and the modern steel-belted radial, everyone’s horseless carriage rode atop bias-ply tires. This week’s film is a dizzying tour of the Brunswick...
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3D Printering: Non-Planar Layer FDM
Non-planar layer Fused Deposition Modeling (FDM) is any form of fused deposition modeling where the 3D printed layers aren’t flat or of uniform thickness. For example, if you’re using mesh bed leveling...
View ArticleMeasuring The Stiffness Of 3D-Printed Parts
How do you choose filament when you want strong 3D-printed parts? Like most of us, you probably take a guess, or just use what you have on hand and hope for the best. But armed with a little knowledge...
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Tensile Testing Machine Takes 3D Printed Parts to the Breaking Point
If you’re serious about engineering the things you build, you need to know the limits of the materials you’re working with. One important way to characterize materials is to test the tensile strength —...
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A Good, Hard Look at Pre-Stressed Concrete
From the looks of the average driveway or sidewalk, it may seem as though concrete is just destined to crack. But if concrete is so prone to cracking, how are we able to use it in so many high-stress...
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