A swash-plate is a device that translates input via the helicopter flight controls into motion of the main rotor blades. Because the main rotor blades are spinning, the swash-plate is used to transmit three of the pilot's commands from the non-rotating fuselage to the rotating rotor hub and main blades.the model is fully mated to represent the motion of the swash-plate. the geometry is also true scale for RC planes and can be 3D printed.