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Molded Nylon Special Standard Round Spacers
Micro Plastics announces a new product line of Special Standard Round Spacers. The new line of molded nylon round spacers includes over 250 sizes, with diameters of 1/8" through 1 1/2" and lengths from 1/8" to 2 3/4". These tough, resilient spacers can be used in a variety of assemblies. Useful in electronic and electrical applications, they may also be used as bushings, bearings, rollers, gliders, and bumpers. They are resistant to vibration, abrasion, and corrosion; are electrically insulating; and have a high strength-to-weight ratio.
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Wheels: Titanium-alloy 3D-printed bike frame is a first
In the latest demonstration of what additive manufacturing can do in the finished-product (as opposed to prototyping) space, Empire Cycles of Lancashire, U.K., has created a super-cool, experimental mountain bike that features a 3D-printed titanium-alloy frame that weighs only 3 lb. The project, undertaken in tandem with British 3D-printing specialist Renishaw, used topological optimization to squeeze out every last gram of unnecessary metal in the design.
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Top Mike Likes: Taking paper airplanes to a whole new level -- Boeing 777
What can you do with an X-ACTO knife, some tweezers, and some glue? Luca Iaconi-Stewart is a 22-year-old self-described "crazy guy who loves aviation." He loves it so much that he spent the last five years building a table-size replica of a Boeing 777 airplane made entirely of paper file folders. Read about Iaconi-Stewart's incredibly dedicated (and detailed) endeavor in this fascinating CNET story. [Image: ©Luca Iaconi-Stewart]
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Top Mike Likes: Carbon fiber and nanotube-reinforced high-performance materials for 3D printing
3D printing with PEEK and other advanced reinforced polymers has been technically challenging until now. Silicon Valley startup Arevo Labs has created proprietary carbon fiber and carbon nanotube-reinforced high-performance materials that are compatible with commercially available filament fusion 3D printers. The company's patent-pending 3D-printing technology combines the benefits of printing complex geometries with reinforced materials that have excellent resistance to high temperatures and chemicals -- all to form lighter, stronger parts. Supported materials include KetaSpire PEEK, AvaSpire PAEK, Radel PPSU, and PrimoSpire SRP.
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Videos+: Technologies and inspiration in action |
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See a U.S. Navy railgun in action |
The Office of Naval Research Electromagnetic Railgun located at the Naval Surface Warfare Center Dahlgren Division fired a world-record-setting 33-megajoule shot earlier this year, more than three times the power of the previous 2008 record. The railgun can shoot a projectile at mach-7 speed over 100 miles -- for just a fraction of the cost of the projectiles we have in current operations.
View the video.
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