Recently I have been designing a robot, just for fun, and I've been having some issues when printing my models. Every now and again I print out the model to see the changes I've made but I haven't been able to do so recently. After about one and a half to two hours my printer just shuts off. It's fairly consistent with it's shut offs, they all happen at about the same time and place. When it stops however the LCD remains on and functioning. It even continues to measure how long the print is taking. At the same time however the motors stop dead and the fan and heater turn off. The fan is directly connected to the 5V on the ramps board coming in from the power supply. Oddly though a jiggle or poke of the yellow square looking pieces and a sparking noise gets the printer "going" again. By going I mean it rams into the print, knocks it self out of place, and begins to make plastic spaghetti. I am currently running marlin, I have a Kossel Mini with an SD card reader on the LCD, and I am using slicer to make my g code. Smaller projects seem to work fine though when things get taller and more time consuming it starts to fail. I am certain that no wires are crossing where they shouldn't, nothing is coming out of place and everything seems to be working as it should aside from the ramps board. Is there a quick fix for this problem or am I better off just buying a new ramps board?
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