I am currently compiling a collection of problems together with Eva-Karin (spouse), including about 300 problems covering statics, particle dynamics and rigid body dynamics. The collection features similar high-quality 2D and 3D illustrations as Lectures on Engineering Mechanics.

The 2D images are created using xfig together with LaTeX, e.g.
For three-dimensional problems the illustrations are created using the POVRay raytracer, and adding a vector graphics layer using xfig and LaTeX, e.g.