They hold together everything from the most delicate watch to the largest bridge. The world is literally kept from coming apart by screws and bolts, and yet we don’t often give a thought to these ...

Advanced machine tool and cutting tool technologies reduce the cost and boost the quality of producing internal threads in aerospace materials. The diameter of a thread milling cutter is smaller than ...

I want to write an AutoLISP routine to help me unfold some 3D assemblies into flat (exploded) layouts. Yes, there are software packages out there that can do this automagically for 3D solids, but I ...