Hi Tony

It is my understanding, that first, a 3D model is created, in MoI for example.
The 3D model is imported into Cut3D, using the correct file type, one that Cut3D can read.
Cut3D creates the tool paths, (gcode), using the 3Dmodel, which tells the CNC machine how to move the cutter blade.
The piece of wood has to be mounted in the correct orientation, and turned over, with proper alignment "holes/pins", to cut the 2sides, (or 4 sides.)

I believe there is quite a learning curve, with practice on some cheaper medium, say mdf, medium density fiber board, or some rigid foam...

(I have Aspire, a similar program to Cut3D, but have not spent much time learning how to use it.)