This is a complex rig to control a mechanism of engine. The system is made up of four pistons (a crankshaft with cams and connecting rods), two gears and a chain. I used skinCluster and joints to deform the meshes of pistons and gears. Node Editor and Maths were used to create the automatism of these pieces. Also I used Wire and Lattice deformers to control the chain by means of a curve. I hope you like it.
Model: Sergio Díaz Albendea