Insulation Hatch Pattern — Harold Detlaff — What better way to start off 2013 than with a new hatch pattern for AutoCAD?
Perform Dview Twist Quickly — Forrest Judd — This LISP routine automates AutoCAD's Dview command with the Twist option. All you have to do is pick a line; the LISP code does the rest.
Copy an Array of Items — Phil Clark — Quick Array lets you perform a quick array in AutoCAD. It's similar to the array option of the built-in Copy command, except that QA requires you to specify the spacing, while the Copy command expects the number of objects.
Three Polyline Stationing Functions — Raymond Rizkallah — These functions all operate on entities such as a polyline, line, arc, and spline.
Find the Fermat Point — Owen Protheroe — This is a neat routine that allows you to join any three points with the shortest path.
Migrate Drawing Settings — Dave Kimme — Export drawing settings to a file, then import them into a different drawing.