hi, sscartwright, welcome to BlenderArtists.
What you want to look into to do your cube to cone animation is shape keys. In a nutshell, you set your cube as the “basis” at frame 1 on the timeline, then change it to a cone and set a shape key on some other frame (usually frame 11.) You’ll find the Shape panel in the Buttons Window under Editing (F9) and a lot more information in the wiki.
Ummm, btw, people who actually use CAD software for a living don’t usually think of Blender as CAD software :rolleyes: . Trying to use Blender to do design work (other than concepts) can be clunky and difficult, compared to software that’s custom made to make the design process easy. We like to think of Blender as a 3D Compter Graphics program.