image = Truss-craftsman.scad.png |designers = Phil and RJ Jergenson |date = |vitamins = |materials = |transformations = |lifecycles = |parts = [[Frames]], [[Nuts]], [[Bolts]], [[End caps]] |techniques = [[Bolting]], [[Triangles]] |tools = [[Wrenches]] |git = |files = |suppliers = |reversible = true

Techniques

=Introduction= A space frame or space structure (3D truss) is a rigid, lightweight, truss-like structure constructed from interlocking struts in a geometric pattern. Space frames can be used to span large areas with few interior supports. Like the truss, a space frame is strong because of the inherent rigidity of the triangle; flexing loads (bending moments) are transmitted as tension and compression loads along the length of each strut.

=Challenges= A triangle is the simplest geometric figure that will not change shape when the lengths of the sides are fixed. In comparison, both the angles and the lengths of a four-sided figure must be fixed for it to retain its shape.

=Approaches= <gallery> Truss-simple.scad.png|Simple truss Truss-spacers.scad.png|Truss with spacers or stacked washers Truss-craftsman.scad.png|Truss with tri joints </gallery>

=References=

• Wikipedia: Truss
• Wikipedia: Space frame