Quotestephenrc Look for a short between T0 & T1 on the RAMPS board. Thanks for your quick reply that directed me to my problem. There was no short between T0 & T1 but because of your prompt leading me to check I discovered the RAMPS board was not seated correctly on to top of the Arduino board. Pushed into place and now all is in order and working correctly. Thanksby Robny - RAMPS Electronics
Hello All I'm hoping you can help me. I'm using RAMPS 1.4 with an Arduino Mega on a home built system. Everything is working as it should except for the temperature control. When ever I heat the extruder ( I use simplify3d) you can see the bed temp rise despite the bed being off and staying cold. The bed is mimicking what ever I \tell the extruder to do. However the bed remains cold regardlby Robny - RAMPS Electronics