I’m considering updating from an A1 to a X2D. I already have several AMS 2 Pro’s, so I’m considering the non-combo version.
The Bambu Lab Wiki states that both the combo and non-combo versions of the X2D come with a filament buffer, but the Bambu Academy Course for the X2D states that the filament buffer is only included with the combo version. Which is it? Do I need to purchase a separate filament buffer?
The X2D comes with a filament buffer, since it’s equipped with two nozzles. You can see this in the manual as well. “non-combo” guide:
In that case, you’ll probably need a filament track switch. Please read the description to see if this setup applies to you. It’s not absolutely necessary, but it might be appropriate for your use case.
Thanks for the reply. Everything I read on the wiki and the manual indicated that the buffer is included, but the H2D course on Bambu Lab Academy said it wasn’t on the non-combo.
Yes, I will be getting a filament track switch.
One question on the track switch. As I understand it, if I have one AMS feeding both nozzles, and switch nozzles during a print, the AMS would have to retract the filament from one nozzle, the track switch would switch and the AMS would load the other nozzle. This would take essentially the same time as switching filaments on the same nozzle, so no benefit of the second nozzle (except reduced purging if the second nozzle was already loaded with the same filament).
On the other hand, if I am feeding each nozzle from a separate AMS, can the two filaments can stay loaded resulting in a quick switchover? Can the track switch keep both extruders loaded if feeding them from separate AMS’s?
Thanks,
Mark
Correct. The Filament Track Switch simply frees you from having to move the filament from one hot end to the other. A single AMS cannot feed two hot ends at the same time. So in your example, if the AMS has slot 1 loaded on the left direct-drive nozzle and then you want other print slot 2 to the right Bowden-driven nozzle, it will have to retract slot 1, track switch changes to the Bowden nozzle, AMS feeds slot 2.
Yes, if AMS 1 is feeding the left nozzle and AMS2 is feeding the right Bowden nozzle, then the filament stays loaded. You’d only have to unload both if the Filament Track Switch needs to swap heads. In your scenario, you don’t “need” a Filament Track Switch. You’d just have AMS1 on the left nozzle and AMS2 on the right nozzle. No switch needed.
You only really need the filament track switch if you don’t want the manual task of moving filament between nozzles. In your case, AMS1 on the left, AMS2 on the right, you’d have to move filament between the two if you wanted to print on the other hot end.
My personal use case is I have 2 AMS2 Pros connected to a 4-in-1 PTFE Adapter into the Track Switch first input. I have an AMS HT on the second input on the Track Switch.
