The basic operations of a plastic extruder – pushing a rod of plastic through a heated nozzle – already exists in a hot glue gun available for $3 at WalMart. To build his printer, [Chris] tor ...

Maker Jón Schone recently showcased a slick new design that bridges the chasm between his first love of 3D printing - and hot ... set the nozzle thermals to 165 degrees Celsius, matching a glue ...