DIY - FlexRig 2 - Building a 4DOF motion simulator

Short video showing how I made my 4DOF motion simulator.
Full aluminium chassis, 3-2-1 system, 3 motors for Z-axis, 2 Scott-Russel links for Y-direction and 1 for X-axis
Upper frame designed for quick changeover between different sim games
Racing, Flying, Trucking,,... and seating and control positions