Last July, engineers from the UK's University of Southampton have flown an unmanned air vehicle whose chassis was entirely constructed of parts that came off a 3D printer; the parts were designed to snap-fit and the plane can be assembled without tools.
Professor Scanlan says: “The flexibility of the laser sintering process allows the design team to re-visit historical techniques and ideas that would have been prohibitively expensive using conventional manufacturing. One of these ideas involves the use of a Geodetic structure. This type of structure was initially developed by Barnes Wallis and famously used on the Vickers Wellington bomber which first flew in 1936. This form of structure is very stiff and lightweight, but very complex. If it was manufactured conventionally it would require a large number of individually tailored parts that would have to be bonded or fastened at great expense.”
Professor Keane adds: “Another design benefit that laser sintering provides is the use of an elliptical wing planform. Aerodynamicists have, for decades, known that elliptical wings offer drag benefits. The Spitfire wing was recognised as an extremely efficient design but it was notoriously difficult and expensive to manufacture. Again laser sintering removes the manufacturing constraint associated with shape complexity and in the SULSA aircraft there is no cost penalty in using an elliptical shape.”
Southampton engineers fly the world’s first ‘printed’ aircraft
UK Theresa May called snap UK elections (after promising not to) in order to consolidate power in her own party, shutting up the MPs who didn’t fall into line with her policies — this was the same logic behind her predecessor David Cameron’s decision to call a referendum on Brexit, and both banked on the […]
I could not have asked for a nicer crowd than the ones who turned up for last night’s event at Liverpool One’s Waterstones; now I’m looking forward to today’s lunchtime signing at Birmingham Waterstones, on my way to tomorrow’s Hay Festival event with Adam Rutherford.
…and they’re likely to vote for the “unelectable” Jeremy Corbyn, a guy significantly to the left of, say, Bernie Sanders, who has survived multiple attempts by the finance-capital wing of his own party to unseat him, and who is riding on a national wave of disillusionment with Thatherism, Neo-Thatcherism, and May-Thatcherism.
If you are camping during rainy season, or just want a TSA-approved lighter, these plasma torches make perfect travel companions. These gas-free lighters create a small plasma beam that’s safer than butane to use and more environmentally friendly. It creates a super-hot, splashproof flame so you can get a campfire going, or have a smoke […]
If you don’t want to get stuck footing the bill for a hit and run, this dashboard-mounted camera offers up to 2K resolution to make sure you always have a reliable witness, and it’s available in the Boing Boing Store for 30% off it’s usual price.The PapaGo mounts unobtrusively to your windshield to see everything […]
While some people still maintain that everything in Apple’s walled garden “just works” and is immune to the rampant malware of the Windows world, the reality is different. The Mac’s growing market share has made it a much more viable target for malicious actors, and its built-in tools aren’t always enough to fix things. Drive […]