I was in the middle of a 5 hour print and realized my spool of the color I need in my AMS was running empty. I caught it as the spool was bare but still some filament coming out of the head.
I pressed pause on the printer and figured it would just sort of shut down until I could put a new spool in it that I’ll get tomorrow.
What it’s doing though is keeping the nozzle heated up and the plate heated up, with the fan blasting.
Is this bad to leave like this for another 15-20 hours until I get another spool to replenish in the AMS? Not the END of the world to kill the print job and start it over later if consensus is that this is not great to leave it going like that for all this time.
If you want to resume it you do have to leave it in ‘pause’ as that’s the only way it can keep the bed warm (if it cools the print will release) and also the only way it can know where it’s at in the print to be able to resume it.
The bed staying warm should be no issue, but I’m not sure why it would have the fan running constantly. You could probably use the settings option to manually turn the heat off to the hotend and then turn the fan off, but I’ve never tried it so I don’t know if it would stay off or heat back up at some point.
You may also be able to just manually unload the filament and leave it that way - that should shut down the heat to the hotend, which should then let the fan back off also.
You can still try a manual unload. Just use the filament control panel in Bambu Studio or the filament control on the printer screen. Go through the ‘unload’ process and see what happens. If it’s all the way inside the extruder, the unload may or may not work. If it doesn’t, try turning the nozzle temperature down using the controls (Bambu Studio or the printer screen, either one) and then when it cools the fan should go down also (but you can also manually turn it down if it doesn’t).
When I do a long pause on an x1c I manually set the print head temp to 35, If the fan does not stop when the temp gets down below 50 I manually turn off the print head fan too,
When ready to resume I would first turn the fan back on then set the temp to 220, then resume once temp reached.
You will need to leave the print bed heater on,
In your case I would then just let the filament run out and replace if with the new roll.
Thanks. I just changed the print head temp down to 30
Bad news is that I forgot what the temp was set to before I lowered it. Did I mess it up but not remembering the number it was on so I can set it back to it? Or will it go back to the correct temp once I unpause the job? Hoping I didn’t mess with the “profile” of my printer printing PLA.
FYI so far it’s cooled down to 36 but that fan is still ripping.
What I have found is that if you pause during a colour change then the fan stops when you go below 49. Otherwise if you pause at another time then you need to manually pause the fan.
Not sure if it will set the correct temperature when you restart - for PLA I always just set mine to 220.
from your experience is there any chance to create a better “pause mode” like for example you said during a color change, or during a infill process? I mean automatic.
I followed your process that you described in another thread, for me worked quite well but I think it would be a needed function to be added, what do you think?
Thanks
I agree that it would be good if both types of pauses brought the nozzle temp down below 49 degrees automatically. And that the pauses during non colour changes paused the fan too when it goes below 49 degrees. I would have thought that would be a fairly simple firmware change for BL to make.
I think I saw an option somewhere to change the gcode that executes when the printer pauses - will investigate.
Will try changing it to lower the temperature to 35 degrees by adding an M104 S35 before the M400 before I next start a long print that I am planning to pause to see what happens.
Paused a print all night last night and forgot to lower the temperature to 35 - so fan must have run all night - so will definitely try proceeding with this change.
In the first instance I am going to try
M104 S35
M400 U1
M109 S220
Update - tried above GCODE, did pause via BambuStudio - and it still targeted 90 degrees - not 35 - so the gcode override does to appear to be used by the pause buttons - maybe it is just used by inserted layer pauses.
So a firmware change would be required to change the colour change and non colour change pause behaviour. Might raise it as a request with X1Plus.
