I have a prusa i3 with the ramps 1.4. I powered it up last week and saw a spark by the extruder heater wires, maybe they touched. The z dvr8825 driver burnt up when this happened. I ordered more and replaced it. Every time the z axis went up a step it would make a weird straining noise on the Y axis and the Y axis would be way off. While troubleshooting this I powered it back up and the Z driver burnt out again, no sparks from the extruder wires this time... Any ideas? Do I need a new ramps or mega 2560 maybe?
