Hi,
If I get one of those motion controllers do I still need the BOB?
Yes, depending on the model of controller you get. The Ethernet SmoothStepper (Warp9) and the UC300 (CNCDrive)
both require a BoB. The Hicon (Vital Systems) does not.
I've never used UCCNC but understand it works well. Mcah3 is still popular but it is no longer being developed. Mach4
is the current and developing product, I use it and believe its light years ahead of Mach3. I don't have any hard evidence
but believe Mach4 is more flexible (better?) than UCCNC.
Craig