Brains Board:
This board contains the "Brains" being the ATmega328p 8 bit Microcontroller pe-flashed running GRBL V1.1. The USB Interface and Auxiliary Serial Input helps makes the BlackBox so "Plug and Play".
Muscle Board:
This board has the 3.2A Stepper Drivers (Max rating 4A) built into the board. The power switch and main head sink is attached to the Muscle Board.
AVAILABLE FROM:
Maker Store Australia: https://www.makerstore.com.au/product/elec-ob-bbmcs/
Maker Store USA: http://makerstore.cc/product/us-elec-ob-bbmcs/
The Wall