I’m amazed 3D printers exist . . . They’re awesome!
Originally posted on Gigaom:
Robotic arm 3D printers are cool. Really cool. Instead of printing within a box, they can build towering structures. They also aren’t limited to the layer-by-layer approach of the average consumer printer; they’re freeform. They’re common in manufacturing, but why aren’t there any available to the average 3D printer user? A few experts offered up their opinion.
Cornell engineering professor and “Fabricated” author Hod Lipson:
Because gantry systems (the static metal rods that guide print heads in 3D printers like MakerBots) are simpler, cheaper and more accurate than a robotic arm, especially for linear motion. Robotic arms have advantages for printing larger objects, e.g. see the work being done on architectural scale printing at Loughborough printed with a robotic arm.