Ok i can see your point.
About the plmc-e4. How much is it and where can i get one? Is it russian?
Im a bit afraid that ill get in the Electronics part over my head with a "russian" plc.

Im still a bit confused about BB, motion controllers and so on.
Is it right that the plmc-e4 is a more advanced bb and motion controller in one? Whats the difference if you compare that one with the G540 bb for instance? If you got the time i would appreciate the "CNC Electronics for dummies "version of it all. I got the driver and motor part thats no problem.