Designers work in open space in a room; their movements are recorded with motion capture devices. The pen strokes are then made into 3D digital files. These files are sent, in turn, to a rapid prototyping device that fabricates the object out of liquid plastic.
This is so futuristic it's almost out of place on a science fiction site - the only precursor I can think of for this idea is not sf but pure children's fantasy.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Tactile Skin Supplier Map
'What strange sensitivity! What an amazing development of science was manifested in every move and act and word of this Robot!'
Orb Nomad Zero-Emission Electric Aircraft
'That explains how it was so easy for me to remain motionless in midair or to perch on a flagpole in imitation of a giant bird, even in the windy city of Chicago.'
DIY Robot Scorpion Crushes It
'...it raised its front end off the ground and waved its antennae at them, then raised one armoured claw as if to snip them out of the sky.'