The drop down board lays out parallel to the floor when the droid is in 3 leg mode. It makes a nice work surface. When not in use it folds up neatly with all wires out of the way. I also used PCB boards on the side supports for the motor controllers like the Vantec RDFR23 main drive motors and the RET 411P Dome Controller. The large Vantec controller you see in the blue droid is a Vantec RDFR36. I found that it is more efficient with battery power useage than the RDFR23 and it can handle more amperage. A more powerful handling controller than your usual droid controller.