Translation of a 3D model into code or how to translate it correctly?

Question

3D

Hello !
Please help!
As a diploma, I took the development of a software complex for a cnc machine
With work in 2D (pictures), I understood and almost finished
How to translate a 3D model? Please help in finding articles, books, source code ... or at least just advice
Thank you all for your help

Answer 1

For example OpenSCAD.

Answer 2

There is a list of various open-source g-code and toolpath generators for 2D and 3D milling and printing.
In general, for a 3-axis router, it all comes down to a series of 2D images. That is, the model is cut into layers along the Z axis and a path is built for the router through empty areas, and for printing through full ones. But for a router, you cannot cut what is not cut through by a level higher. So this must be taken into account.
Plus, it is necessary to take into account the possibility of a collision of the tool (and other parts of the router) with the part, building intermediate paths bypassing the protruding elements.
In general, there are quite a lot of different milling strategies - raster, contour, vortex. Plus, if you have rotating axes, then there is much more freedom and ordinary slicing is no longer quite suitable. Such complexes are very complex and have been developing for decades (PowerMILL, for example), optimizing all processes to speed up production.