What's the deal with the stand alone CNC controllers? I assume they just plug and play and use their own proprietary software? Also, can they do full 3 axis simultaneous machining and run g-code?

https://www.automationtechnologiesin...ontrol-system/
https://www.automationtechnologiesin...lathe-milling/
https://www.automationtechnologiesin...nt-hand-wheel/
https://www.automationtechnologiesin...ontrol-system/