Hi all,

If you are looking for a BOB and want decent features without built-in drivers, have a look at DIY-CNC's optoport BOB. Fully opto-isolated and comes with charge pump and spindle/coolant relays all on the board. It's only real limitation is four axis. It's a very well put together circuit board, feels like a quality item if you know what I mean and its been flawless up to now in my testing.

Have a look and see what you thnk. I'd be interested in others opinions.