Hi there, I've followed the instructable to add a heat bed to the Type A Machines 2014 but I cant get the heat bed to work. According to this diagram the heat bed goes in "HB Out" and that is what I did. After changing the setting in Marlin I can get the thermistor to work and display the temperature but so far no success with the heat bed. My only chnge in Marlin's configuration is: #defineby Matienzo - General