Hi,


I am using my MK3 heatbed at 12v right now and it cannot hit 110c. It maxes out at 103c and struggles to get there. I am using heavy gauge, high strand RC truck wire, soldered the 12V pads 2 and 3 to one cable and the other to pad to power. I am running through ramps at 12v. Bed just does not want to get hot. I checked resistance and it seemed to be within spec, somewhere around 1.6-1.8 ohm.

What am I missing?