We have replaced the thermocouple and the heat cartridge on our Dreamer, but we’re still having the same issue - the temperature drops immediately after a print job starts. Has anyone else had this issue? How did you resolve it?

i’ve had this issue with recent versions of CURA and SLIC3R. i don’t know why it happens, but cura 2.x (latest and greatest) creates gcode with this issue for me while cura 15.x (the older version using the older version numbering system) produces gcode without this issue. it might be that the rather old build of marlin firmware on my (our) printer(s) doesn’t support gcode feature being used by these slicers?

my workaround(s):

1. i avoid using the affected slicers where possible. using older cura works fine for me (or using the cura engine in astroprint.com, which is my main slicer and printer control interface)

2. when i HAVE to use a newer slicer (e.g. when features of cura 2.x would result in significantly better prints) i setup my print job then PAUSE the printer immediately after auto bed leveling begins. this completes bed leveling (at least on my printer) and pauses just before filament ought to be extruded. i then set the extruder temp, wait (manually) for the temp to stabilize, then resume the print

as mentioned above, i use astroprint to control my printer. the web UI has a big pause button right on it and that’s where i pause the printer from. i’m not sure if pausing from the printer’s control panel would do the same thing or not (i haven’t tried) but that might depend more on your printer.

in case it is relevant i’m printing with an XMachines Lorei Duo running Marlin (i think it’s version 1.1.6, but i’m not sure. i can check tonight if that would help)

-jared