CAD is great when you want to make a nice parametric model that you can edit as requirements change. But for a simple one-off part, I can often whip one up in Blender in a third the time it would take me to dimension everything in a CAD sketch.
You and I must make very different parts. Unfortunaley even my one-off 3D prints are never one-offs. I almost always have to go back and tune a dimension or two.
