Thanks for the file C1..Here you go Colten. I couldn't locate the original files so I made a new one this evening. It's a medium size stand, so you may need to scale it up for the book and use 1" high hinges.
I never did cut any of these. Toolpaths can be set up for whatever size end mill or carbide router bit you want to use. I would use a 1/4" solid carbide down spiral. Round the outer edges of the plywood and bevel the hinge edges to about 45 degrees.
You can draw straight vectors or a rectangle along the hinge edges of the plywood and use them to profile the bevels with a 90 degree V-bit before doing the final shape profile. I plan to do that, but will wait until I am ready to cut a couple of them. The edge view at the bottom of the drawing shows how the shapes are made and how the hinge is installed.
The .crv and .dxf files are attached in a .zip file.
Update: Replaced the original file with v2.0 which has better hinge details.
Lou