Annycubic i3 mega I have been the proud owner of an Anycubic i3 Mega for some time now. I took over the printer in a defective condition. After smoking and changing the motherboard, no heating at the heat bed. Voltage for heating element is not switched. No continuity after measurement T1. I put on the heatbet with 12 volts and gets warm (manual heating). what else do I have to do about the tempby schmitt-45 - RAMPS Electronics