If you’re of a certain vintage and have ever done any technical drawing, chances are good that you used a r0tring of some kind, be it pencil or pen. Well, r0tring makes more than writing implements.

On a technical drawing, the dimension that you want is called the nominal. But, no manufacturing is ever perfect, so you have to allow some wiggle room in what you’ll accept. That wiggle room is ...

Drawings can be created at any stage of the design process. They can range from rough sketches of first ideas to more detailed technical drawings. A technical drawing is a detailed and accurate ...