Hi all, I recently melt a ramps 1.4 build in mosfet by trying to heat a Mk2B heatbed to 110 degrees, so I decided to get an external mosfet. I'm kind of new to 3d printing but I watched a lot of youtube videos showing how to set this up. Now, with the external mosfet I burned out the wire that comes from D8 to the mosfet Control in. Everything works just fine without the external mosfet, butby Biridjow - RAMPS Electronics