Mount Parts
Mount parts are massless parts that attach to other parts. By default, mount parts are fixed to ground. Mount parts represent the vehicle body or subframe and act as place holders.
When you create a mount part, Adams Car automatically creates an input communicator for it of class mount. The input communicator requests the name of the part to which the mount part should connect. If Adams Car finds a matching communicator during assembly, it replaces the mount part with the part that the output communicator indicates. The replacement part is from another subsystem. If Adams Car finds no matching output communicator, it replaces the mount part with the ground part.