Abstract: A system for making a truss from joinable bar elements. The bar elements are at least in part of plant material from high-growing plants. The system further includes connecting elements to interconnect at least two of the bar elements, the bar elements and connecting elements being adapted to be connected to each other to form the truss.

Abstract: A system for making a truss from joinable bar elements. The bar elements are at least in part of plant material from high-growing plants. The system further includes connecting elements to interconnect at least two of the bar elements, the bar elements and connecting elements being adapted to be connected to each other to form the truss.

Abstract: The invention provides a system, a method and a device for manufacturing a truss of framework from joined bar-elements and connection-elements inserted therebetween at joints, the bar-elements consisting of at least one segment of a material of high-growing plants, and the connection-elements consisting of a rigid, regenerative material. The ends of the bar-elements and/or the connection-elements are machined to exhibit surfaces of geometrical bodies, such that in the area of the joint, on each of the two bodies there is provided one surface which is a cylinder, cone, prism or pyramid, at least in selected areas, as well as another complementary surface which can be respectively plugged together with adjoining surfaces. The device comprises a cutting tool for machining of at least one connection-element and/or of the ends of bar-elements which are to be joined thereto.