Sometimes the stars align and everything goes wrong all at once. This is one of those times. All of the 3D printers are down and out. The Creality and the Ultimaker are having extrusion issues, the Rostock had a power supply failure a while back, and the Prusa has a broken heater cartridge due to a failed print that globbed all over everything (first layer didn’t stick completely; you should always watch until the first layer is done).
So, if anyone is free on Wednesday afternoon/evening and wants to help get them working again any help would be appreciated.