I bought a 3D printer kit. The build is finished, but I still need to get it properly interfaced with my computer, and calibrated.
I had taught myself 2D CAD okay, but finding 3d CAD another whole different bag. I am having an awful time getting a handle on it. And, while there are some good low priced 2D cad programs I have yet to find a free or inexpensive 3D CAD I like :-(