So a month ago I updated my MPSM V2 with a E3D V6, changed the setting for the thermistor and did a PID tune successfully. Prints seemed nicer and all was well. Spent the last two weeks away from the printer and upon return things are not working correctly.
I was under extruding and all my prints where spongy and tore apart easily. I fixed the extruder issue and found I think that the hotend was at least 20 degrees colder then the system was reporting. I upped the temperature and prints are solid except the last one which was much taller then the rest.
Every 10mm along the entire 70mm height it looks like a ZBand but acts more like a narrow raft as the print easily breaks a the bands.
This is happening on PLA and PETG, though the PLA is worse. Everything is left in a sealed tube with 5 pounds of descant.
Any ideas where I should start looking? (just order a new heater cartridge and thermistor)