Based on the beautifully detailed model https://grabcad.com/library/rickenbacker-4001-bass-autocad-2008-1 by Carl Garthwaite. I ran the original AutoCAD model through TurboCAD, NetFabb, 3dCoat and Blender, to make it printable.
Make sure to use support under the neck. The tuning keys are beautifully rendered, but they broke off with the support.
We talked about this thing and a whole lot more about 3d printing on the 3D Printing Today podcast available on iTunes, Stitcher radio or direct from the source at http://threedprintingtoday.libsyn.com/