The future is here my friends.
I bought a 3D printer still in development for $400.
Sure, it had a few issues at first but I have printed a Picnic table, some pallets and a BTTF2 Delorian for my layout.
And current versions sell for a mere $600. Google Solidoodle to see them.
Now, the CAD is a different issue. I am fortunate to use SolidWorks at my job and have the home copy on my Computer here. Excellent software but very pricey for a hobby.
Try Sketchup or FreeCAD or others, Google is our friend here.
Actual use of them is unknown, I have SolidWorks, have used AutoCad Inventor and much prefer SolidWorks. It is much more intuitive to me.
Solidworks is also easy to get a drawing out of. Drag the view you want and drop it on the sheet. Pull out 3 views from it just by moving the mouse in the desired direction and clicking. Go up and left for an Isometric view. Rt click to stop adding views.
Click the Dimension Icon and pick points to put dimensions on. Move the mouse orthagonal and click to place it. Pick the next pair of points or the same ones to dimension in the other plane.
