I have been using Fusion 360, MeshMixer, and 123Design, For about a year know. I transferred all of my designs over to CAD/CAM and now have quite the library that are all set-up to cut in a matter of minutes, Last pic is the design I did yesterday for the jig that I am going to use to cut the lip slot and drilling operations. The more you use the software the easier it becomes. I had no previous CAD/CAM experience before starting last fall