Quote Originally Posted by Cousinit75 View Post
So, does this replace the small board at the top of the pic and the three stepper motor drivers?
No the AXBB-E is just a motion controller and Breakout board. So this will allow you to connect to PC via Ethernet rather than parallel port and increase performance slightly. It will also offer more inputs and outputs along with spindle control.

You will still need drives for the motors which connect to the AXBB-E.

There are some boards like the Gecko G540 and Lead shine MX4660 which have drives and breakout boards built into one unit. They don't, however, offer an external motion controller so you'll still need this if you want to eliminate the parallel port.

That said I wouldn't recommend this route because if one drive fails it's not so easy to replace. Wiring separate drives into the system isn't a big deal and an ethernet motion controller is far more beneficial than a little less wiring.