{{Techniques infobox
|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
}}

[[Category: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=
  * [[https://en.wikipedia.org/wiki/Truss|Wikipedia: Truss]]
  * [[https://en.wikipedia.org/wiki/Space_frame|Wikipedia: Space frame]]