Fixed it! Turns out it was my lack of knowledge in electrical engineering. It just so happened that i was looking at a PC motherboard today, when i noticed that all the MOSFETs where laying flat and the drain whas not connect to the board, buuuut, the tip of the MOSFET, where you would screw in the heatsink, was soldered to the board. Five seconds of googling later i found out that the tip also aby 3d.man - Reprappers
Hello! i'm building my first 3d printer, witch is also my first arduino project, so i am pretty new when it comes to all the electrical stuff. The first time i tried to heat up the bed in pronterface, just for testing purposes, the mosfet started smoking and slightly melted the blue connectors(now i know its a standard fault with ramps). I changed the mosfet and added heatsinks and fans to keep tby 3d.man - Reprappers