truss system: trusset
http://babbage.arch.columbia.edu/~panzalone/trusset/brochure.pdf
The Trusset (which is the name of this specific application), is an offshoot of a larger field of study related to three dimensional differential trusses, including articulated deployable structures. This particlar project is intended for speed of construction, unskilled assembly and inexpensive components while still providing formal flexibility.