Hi, I was recently given a cnc machine with a Endurance laser on it from a friend who has upgraded to a more commercial machine, there is a question that i would like to ask and that relates to the Motion Control Board, I would like to know whether I can retro-fit Limit switches to the cnc frame and the board, I have found that before on another machine I had these and now miss them on this machine please. A picture of the machine and board is here for reference, the board seems to have the sockets for them but to be honest I do not know and also would I need to flash the firmware on the board to make these work. Many thanks for any responses.