REV Robotics Linear Elevator

This is an assembly of files required for building the REV Robotics: REV-25-1238 Linear Elevator assembly. This model includes a shortened 3rd stage, as well as some (admittedly Janky) mating of the other slide. All credit goes to REV Robotics: http://www.revrobotics.com/ for the files, All I did was make an assembly for them, as I couldn't find one on their site.