Last night, after updating Bambu Studio to the latest version (V1.7.7), I tried to start a PETG print on an X1CC. However, I encountered the error message displayed in the image. Upon reviewing the update’s Github page (Release V1.7.7 · bambulab/BambuStudio · GitHub), I noticed a change listed under the “Improvements” section, specifically point 3.
To be honest, this change feels like a step backward. With the AMS, removing the top glass is not possible. Leaving the tempered glass door open throughout the entire print doesn’t seem practical and poses risks like breakages and potential accidents.
This situation has raised several questions for me:
Why is this notification appearing now and not earlier?
Have previous incidents occurred where printers jammed due to this issue?
Shouldn’t the enclosure’s fan be regulating the enclosure’s temperature?
Is it possible to monitor the enclosure’s temperature from within the slicer?
I’m curious to know about your experiences with this matter.
I’m confident that Bambu Lab has valid reasons for making this recommendation, given its expertise and knowledge. However, I hope a more effective solution can be found for this concern.
I’m eager to hear any insights or comments you might have regarding this issue.
Opening the top or door has always been a recommendation for certain filaments like pla and petg when using higher temperature plates. With many people abandoning the cool plate in favor of pei/pex/g10 I can see where they could have had an increase in clogged nozzle cases.
I think that is because you haven’t set the filament type on the AMS. PETG should be fine in a closed BBL printer’s chamber. It can be on the edge but should be OK. I think if you set the filament type in the A3 slot, it may fix the error message. I’m guessing it is assuming the filament type is PLA (because its blank) and the high bed and nozzle temps of the PETG profile is possibly triggering the error.
The fear is, PLA softens around 50C, and at those bed temps, when the chamber is closed off the temps will be easily 50C or higher. That almost guarantees the heat creeping up from the hot end will cause the PLA in the tube to melt and jam.
PETG on the other hand softens around 68C, which is a little too high to be affected by the BBL printer’s chamber temps. For that to be an issue, it will require the hot end fan to have an issue. So, update the AMS filament slot to show that it is PETG and see if the error goes away.
Also, yes I believe the X1 will have a chamber temp reading on the slicer (however I use a P1P so I can’t say for sure). The first larger reading should be the chamber temp, and the lower smaller reading is the chamber fan speed.
If you have added a filament type to the AMS, and its just covered by the dialog box, maybe your bed temp is very high and triggering the error. Same idea, too much chamber temp can create issues with softening filament. Even though PETG softens way above the chamber temp, its possible (but not likely in my experience) for the hot end to push up a little too high.
I just reported this in the bug thread. Mine has been sending this warning with every print on my P1S, even with the bed as cool as 20 deg C. Like you, it started as soon as the new version was installed.
I feel opening the door or top is completely and utter nonsense.
Turn the bed temp down and work on G29.1.
It’s pretty simple.
I feel like the majority of folks here haven’t had an enclosure before.
There’s really no need to open the enclosure.
Worried about it not sticking to the plate because the plate says ‘use higher temp!’ Ignore that. Put the dam nozzle closer to the plate to super squish it. It’ll stick.
this is the real fix. The hot end cooling design sucks. I havnt had a single extruder jam since doing this. Now I can run pla with everything closed and the bed at 65. The “chamber temp control fan” was a scam. Just like the filtration is just for looks and advertising.
I have never been inclined to independently make modifications to a machine, especially something as significant, and particularly when it comes to a complex machine.
In the Bambu Carbon X1, I’ve accumulated approximately 1000 hours of printing using PLA, PETG, and even a bit of PAHT-CF, and I have never encountered a blockage.
My initial concern was solely triggered by the pop-up message that appeared in the slicer, as I mentioned in my initial post. However, it seems that version 1.7.7.89 has addressed the problem, or at least the message has disappeared… hehehe. I would appreciate knowing how they resolved it.
