{{Parts infobox
|image           = 
|designers       = 
|date            = 
|vitamins        = 
|materials       = [[Spring steels]], [[Plastics]]
|transformations = 
|lifecycles      = 
|parts           = [[Wires]]
|techniques      =
|tools           = [[Metal lathes]], [[3D printers]]
|files           = 
|suppliers       = 
|git             = 
}}

[[Category:Parts]]
[[Category:Motion parts]]

=Introduction=
A spring is an elastic object that stores mechanical energy. Springs are typically made of spring steel. There are many spring designs. In everyday use, the term often refers to coil springs. 

<youtube>dethuGX2IGs</youtube>

=Challenges=

=Approaches=
<youtube>gWreqqYNsBE</youtube>

=References=
  * [[https://en.wikipedia.org/wiki/Spring_(device)|Wikipedia: Spring (device)]]