No.
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Sounds like you are not flushing enough of your main material. If there is any ASA left over in the nozzle when PAHT CF starts extruding, you will have contamination. And as we see, the two materials donāt stick together.
This means the ASA flush doesnāt need to go too high, because a little contamination there is not a big deal, as it is not load bearing. But if there is any contamination of the PAHT CF, youāll have issues with layer adhesion in various points.
Personally, I would have thought 600 was close to enough, just make sure that is the PAHT CF and not the ASA. Also note, 400 would probably be too little if things are mixed up. If Iām honest, Iād start at 700 if this problem started. Also, I believe the slicer is looking at color not material, and the base flush from black to white is 667 when re-calculated. Meaning that should probably be the minimum value for your main material.
To be safeā¦ but wasteful with expensive material, Iād say start at 800mm3.
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Ok maybe Iāll try bambu Asa settings instead of generic
Thatās what Iām using 800 on transition to the Asa and to the pahtā¦
Iām thinking maybe it could be temp/fan settings when switching from one to the other on the same layer?
Sorry, thought I saw 600 and 400.
I mightve typed that but Iāve since resliced and reprinted at 800 and still appear to have the issue unfortunately. Sorry for the miscommunication
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Does anyone know if ASA will make a good support interface for PA6 GF also?
Did you use AMS for that? Wasnāt there any problem with PA-CF going back and forth through it?
Is there a way to not use AMS and use different material for the support interface?
You can but you will have to edit the GCODE.
Thatās not answering my question. Is it safe to use AMS with pa-cf filament?
Modyfing gcode is a no-go.
No, it is not. Bambu specifically says which types of filament are not compatible with AMS.