prrjim said "However, I am not a draftsman."
I was back in the 70s and I've tried to do CAD work on my computer using various free 3D programs, couldn't get anywhere with them. It's a lot different than drawing with pencil/paper. That's the only thing keeping me from getting a 3D printer, well that and I'm almost 70 and just don't have the desire anymore. I would like to make a 3D printed Vanderbilt tender though.