And one more thing. Perhaps I am wrong, but I suspect that the secret technique is based at least partly on the ideas and solutions of a cnc4free man who disseminates his knowledge and skills for free.

https://www.youtube.com/watch?v=9zurRXrntJs

His motto is "FREE CNC methods for small business and the serious hobbyist"

cnc4free.org

Regards.
- Marius