I am bumping this as I too have no idea about the board used in 3d stuffmakers printers.
I'm looking into adding and LCD and SD card so you dont have to constantly have it connected to the computer while printing.

So far
- I've upgraded the extruder - added a J-Head Mark IV at 0.4mm
- Added a fan directed onto the print for better PLA printing and a switch to manually keep it switched off for first layer
- Added an on/off switch
- Mine came with a bowden extruder and was looking to change it into a Wades but decided not to due to the inertia and added weight it would bring

Happy printing !