Engine

Start 3D Model Builder (Geometry Pack)

Create the piston model

(click here to build)

Create the conrod model

(click here to build)

Create the crank_balance model

(click here to build)

Create the crank_bearing model

(click here to build)

Create the crank_shaft model

(click here to build)

Click on and Project OpenEngineeringEngineEngine

Add the crank and conrod

Add the child model crank_shaft

Add the child model conrod

Position the conrods

Copy and move the conrod models into position as illustrated

Rotate the conrods

Position and rotate the conrod models to be in line for the cylinders

Add the pistons

Add the child model piston

Copy and move each piston model into position

Press Save to save the model