I got a Kickstarter BBPro and built it up and ran it a few months ago. I couldn't get the little boat to stick to the plate and I had other things to do so I ordered some Kapton sheets and lost interest for a while. I put the sheets on yesterday and fired it up. After recalibrating the Z axis, I ran the boat. 2 things happened: 1 - the first 15 or 20 layers printed beautifully after which the boat was warped enough that it hit the print head 2 - I got a thermal runaway warning I shut it down and went home Today the nozzle won't heat. I assume I blew something. Apparently the PID (which I think is the temperature feedback controller). a) Is that right? b) Are there schematics and layouts? c) Is the firmware that shipped with the original BBPro the most current, and if not where do I get an upgrade?