Mitsubishi 6G72 V6 CAD Assembly

I wanted practice at two things the robot arm never made me do. The first was working off real part drawings and reference dimensions instead of designing from a blank sketch. The second was managing an assembly big enough that one mistake in one subsystem, a bore diameter or a journal offset, breaks the way a dozen other parts mate.

The 6G72 was the target, a real Mitsubishi V6 SOHC engine that I worked through feature by feature. That meant the cylinder block, the crankshaft and connecting rods, the camshafts and the full valve train with its rocker arms, followers and springs, the timing belt and cam gears, and the intake and exhaust manifolds. Every dimension came off a reference measurement and got constrained with real geometric mates instead of being eyeballed.

I checked the mechanical motion with a SolidWorks Motion Study, so the crankshaft actually drives the pistons and the valve train through the constraints I built rather than sitting in a static exploded view. I did not get to tolerancing given how long the project ran, so what this shows is the assembly complexity and whether the parts move correctly against each other.