Anvil 1000MD was probably the best 2D mechanical EVER! I used it for many years, and when I had to use Autocad at another company I realized just how good Anvil was! An Anvil user could run rings around a Autocad user. I and two other users complained mightily about Autocad, so the company had an Autocad expert, who had written books about Autocad, come in and show us why we were wrong. After three days, he could not do several things Anvil did right out of the box after he tried writing Lisp routines to overcome Anvil's superiority. When he left, he had a far better opinion of Anvil!