I just retired my old techzone electronics and upgraded to Ramps 1.3 with RepSnapper.
I am trying to do calibration and test prints, but I keep running into the same problem again and again, the machine glitches and stops after a few minutes of printing. It will do the first layer and then somewhere in the second layer it hangs up and freezes, but not in the same place each time. I have repeated the glitch 5 times now with 2 different gcode files. Nothing feels like it is overheating, and I even put a fan on the Ramps board just in case but it keeps happening.