I've got a set of Makerbot Gen 3 electronics (1.2 motherboard) laying around unused. I was thinking about making a simple hot-wire cnc foam cutter and thought they would work great.
I've managed to get GRBL installed and I think I've got the pin assignments worked out for the step/dir. However, I'm stuck trying to get the PSU to turn on. I've poked around in the reprap firmware but I'm not a very strong programmer and I quickly got lost. Could someone put in laymans terms what needs to happen to turn on the PSU or at least point me to the relevant code?
