If you want people to be able to use your modeling files effectively, you need a process called 3D Product Documentation. This essential process involves taking down information and leaving it in a folder along with the STL files.

I struggled mightily with the concept of two-point perspective, up until I found a blog post explaining it. Then I merely struggled. Anyhow, here is an attempt at a two-point perspective sketch, made especially impressive by the fact that I kept drawing while the cat tried to wrest the pencil away with his teeth.

Having technical drawings made the work SO much easier, goodness. It took far more time initially, but I was able to anticipate most potential problems before they saw the light of day. I realize mine are baby steps, but I feel really good about this. Creating a technical drawing for each of the 3D printed parts helped me avoid some of the earlier problems.