Giant 3D printers for making boats, bridges, buildings and rockets

BOAT BUILDING is a long-winded and tedious business, even when what is going down the slipway is a small craft made from modern materials such as fibreglass, rather than something nailed together out of planks of wood. Construct a mould. Build up layers of resin and glass fibre inside that mould. Extract the completed structure […]

Titanium for a chassis

We are getting used to carbon fibre body tubs in performance cars but making one out of titanium is new to me. Maybe Ariel know about the Metalysis breakthrough, which could produce titanium for one-tenth of the present cost: