Hello,
I have chamber temperature failures by combining ASA with HIPS Support. Both filaments are set to 60C chamber temperature but the printer will always try to reach 0C for the HIPS (initial value before changing was 0C)
So after each Layer the printer tries to reduce the chamber temperature to 0C and sends an error (please open door, chamber temp too hot)
Has anyone made an successful print with those or similar Materials?
Best regards
Mario
I was just able to reproduce the error again with PC CF (Extrudr Durapro PC PBT CF) and HIPS Support. Has anyone printed same or comparable Combinations yet.
Unrelated, but why do you have to send it back?
It was shipped with damages (see post in “shipping status”)
However Bambulab only offered me spare parts and wanted me to fix it by myself (without any partial refund, warranty or anything else).
Now I need to return it. But since printing with support didn’t work so far the printer is pretty much useless right now.
Since it seems that nobody has tested my use case or experience I have opened a support ticket and will keep this Thread up to date (at least as long a I am waiting for the return of the printer)
Thanks for that. I’m interested in how your case progresses because I ordered “Support for ABS” - which I think is HIPS - just for using in the H2D with ABS-GF.
Hi,
This should work for now until they fix some of the project filaments. I haven’t received my printer yet to test it, but give this a try.
Edit the HIPS chamber temp:
Change the G-code for heating mode:
The other option is create custom ASA filament then put the HIPS settings for the Filament / Cooling / Overrides:
Keep us updated 
Thanks a lot! I will try it and give feedback. I am just very curious that issues like that did not occur during Bambulabs “long” testing phase or that none of the YouTubers tested things like this.
they may have just tested with their “Support for ABS” profile instead of HIPS - maybe you can tell the slicer you’re using “Support for ABS” to see if that does the trick?
@3DTech: Thanks a lot for the help!
I just had to copy the ASA (or probably also PC)
starting gCode into the HIPS starting g-code (which forced the cooling target and by this caused the error).
Now it works perfectly!
Tip: If you add a custom filaments you can change the filament adhesion in Bambu Lab Studio, you need to enter “Develop mode” first and then modify the “Adhesiveness Category” within the filament-related options.
What does “Adhesiveness Category” modify?
Never mind, found it in the wiki, its how they adhere to each other.
Go to Intelligent grouping
I REALLY wish BambuLab would give me full control over my chamber temperature settings. I am constantly fighting error messages with the printer trying to force me to use their recommended chamber temp settings. What I want is to be able to put in a target chamber temperature, and the printer use its heater or fans to maintain that temperature. That’s it. EASY. But they have gone and made it overly-complicated by trying to hold my hand and tell me what I can and cannot do. @BambuLab PLEASE let me control my chamber temperature without constant road blocks. I am no idiot - I don’t need constant warnings and errors when I try to use my printer the way I intend. Maybe a single pop-up is warranted for those inexperienced users, but an outright denial of allowing me to control my chamber temp is insane to me. I know exactly what I am doing.
Hello,
I received feedback and official help from the Bambulab support, which was quite useful (and fast). In the core, the issue can temporarly solved by the advice from @3DTech. In addition the Bambulab support also provided some more detail I will share with you (copy and paste from the ticket):
"…Upon further review, it appears the G-code may need to be adjusted. This is more of a temporary fix until a future update resolves the bug.
You can adjust the G-code by referencing the photos below:
When one print task uses medium-temperature filament and high-temperature filament at the same time, errors like this may occur.
Medium-temperature filament include:
** “HIPS”*
** “PETG”*
** “PETG-CF”*
** “PE”*
** “PP”*
** “EVA”*
** “PE-CF”*
** “PP-CF”*
** “PP-GF”*
** “PHA”*
High-temperature filaments include:
** “ABS”*
** “ASA”*
** “ASA-CF”*
** “PC”*
** “PA”*
** “PA-CF”*
** “PA-GF”*
** “PA6-CF”*
** “PET-CF”*
** “PPS”*
** “PPS-CF”*
** “PPA-CF”*
** “PPA-GF”*
** “ABS-GF”*
** “ASA-Aero”*
The current temporary solution is to change the G-code for medium-temperature materials to chamber temperature heating mode. However, please be aware of the risk of nozzle clogging due to heat creep when using such materials. Since the nozzles are positioned close together, if one material has a lower melting point than the other, it may cause clogging. We are continuously working to optimize these profiles for future updates.
…"
For me that explanation helped to understand the issue and I appreciate that the issue was taken serious.
Best regards
Mario
Seems like a true fix would need to reduce the thermal coupling between the two print heads.
