{{Techniques infobox
|image           = Truss-spacers.scad.png
|designers       = Phil and RJ Jergenson, [[User:Tim|Timothy Schmidt]]
|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 truss consists of [[frames]] connected at joints. Trusses are typically composed of triangles because of the structural stability of that shape and design.

=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>
* 2, 3, 4, 5 wide for similar function as 2040, 2060, 2080, 20100 extrusions.  bolted across in an alternating diamond pattern for widths > 3 and bolt-length of 3.

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