=Introduction= A hydraulic cylinder (also called a linear hydraulic motor) is a mechanical actuator that is used to give a unidirectional force through a unidirectional stroke. It has many applications, notably in construction equipment (engineering vehicles), manufacturing machinery, and civil engineering.
=Challenges=
=Approaches= * [http://www.surpluscenter.com Surplus Center] * [http://www.tractorsupply.com Tractor Supply Company]
=References= * [https://www.youtube.com/watch?v=NLscbeoIjAY 3D printed electric linear actuator] * [https://en.wikipedia.org/wiki/Hydraulic_machinery Hydraulic machinery] * [https://en.wikipedia.org/wiki/Hydraulic_cylinder Wikipedia: Hydraulic cylinder]