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
The eminently electable Jeremy Corbyn, whose exemplary, inclusive election manifesto rescued the Labour Party (including its traitorous establishment Blairite wing) from history’s dustbin and delivered a brutal blow to the nasty Tory party, the man who is arguably the UK’s Prime Minister in waiting, addressed a roaring crowd at the Glastonbury Festival, damning war, Trump, […]
The Conservative Party — and free market ideologues — have waged a long war on “safety culture,” insisting it was a nonsensical, incoherent regulation that acted as a drag on every business except no-win/no-fee lawyers, who exploited these rules to victimise poor corporations with punishing lawsuits.
The death-toll on London’s Grenfell Tower fire continues to mount, it’s worth remembering that there are no “natural disasters,” only human disasters, created by people who weigh different interests in the balance and create policies based on the way the scales come up.
Although flagship smartphones are unlikely to adopt heavy-duty outer casing anytime soon, you can always prepare your device for the outdoors with a beefy case and and an external battery like this Nomad Tile Trackable PowerPack, available in the Boing Boing Store for $119.95.The Nomad Tile can fully recharge an iPhone 7 over three times […]
Even though credit cards now feature an EMV chip for securing transactions, they still have to include the magnetic strip for compatibility with older point of sale systems. Because of this, there’s no way for the chip’s new security capabilities to protect against card skimmers in the wild.How do you protect yourself from legacy-technology-induced fraud? […]
As the old saying goes, “You should sit in meditation for 30 minutes every day. Unless you are too busy, in which case you should meditate for an hour.” Since most of us have an endless list of things to do and people to see, carving out quiet time can feel impossible, especially when most […]