[MrForbes]

Thanks for expanding on the info I provided. Note that I included a picture, which shows the LM7805 mounted to a piece of aluminum, which is a heat sink. Note also that the heat sink is mounted to a wood part, so it is insulated from the metal robot chassis, as required by the rules...since the metal tab on the LM7805 is connected to the negative battery terminal, through the PDP and Spike