News: office supply brand Staples has become the first major US retailer to sell desktop 3D printers for the consumer market. More about Staples becomes first major US retailer to sell desktop 3D printers
Australian architect Christopher Polly has converted a small Sydney bungalow into a two-storey house by adding extra rooms behind and underneath. More about Cosgriff House by Christopher Polly
An exhibition showcasing 15 years of design by Ronan and Erwan Bouroullec has opened at Les Arts Décoratifs museum in Paris. More about Momentané exhibition by Ronan and Erwan Bouroullec
Product news: this armchair by London designer Benjamin Hubert weighs just three kilograms. More about Membrane by Benjamin Hubert for Classicon
Following today's news that the first 3D-printed gun has been fired, Dezeen reporter Emilie Chalcraft takes a look at how 3D-printed guns and drones are changing weaponry and warfare in this extract from Print Shift, our one-off publication about 3D printing. More about "Frontline soldiers could soon be printing entire weapons or even aircraft"
News: Adrian Smith + Gordon Gill Architecture has unveiled its competition-winning proposal to build Mumbai's tallest skyscraper. More about Proposal unveiled for Mumbai's tallest tower
Architects Snøhetta and AECOM have revealed their latest renderings of a new stadium for NBA basketball team the Golden State Warriors on the waterfront in San Francisco (+ slideshow). More about Golden State Warriors arena by Snøhetta and AECOM
News: the world's first 3D-printed plastic gun has been successfully fired in Texas, USA. More about First 3D-printed gun fired
Japanese architect Kengo Kuma conceived this primary school in north-west Tokyo as the modern equivalent of a traditional Japanese schoolhouse with timber-clad walls (+ slideshow). More about Teikyo University Elementary School by Kengo Kuma and Associates
Dezeen promotion: sex toy brand LELO is calling for designers to enter products and experiences that stimulate the senses to this year's LELO Design Award. More about LELO Design Award 2013 call for entries
Chilean design studio Losgogo used reinforcing steel and wood to build these items of furniture against the clock (+ slideshow). More about Polígono by Losgogo
Doors, windows and recesses are picked out in yellow ochre on the timber facade of this retirement home near Paris by French studio Vous Êtes Ici Architectes (+ slideshow). More about Morangis Retirement Home by Vous Êtes Ici Architectes
Milan 2013: this collection designed by Arik Levy for outdoor furniture brand Emu features aluminium seats and footstools with tops that fold down around square frames. More about Shine outdoor furniture by Arik Levy for Emu