I’m not sure but it could be because the bottom input is the same as the dedicated tpu nozzle? If you’re only running one ams it makes sense not to put it on that one.
You’re supposed to be able to hook up 25 colors including the external full. I assume tha t the only way to do this is just by using 4 - 1 adapters. Otherwise that would be a heck of a lot of hubs.
So are you still you can put three AMS units to one nozzle without a hub?
Thought the dedicated TPU entry is a separate different nozzle…
It is a different entry but that entry has to connect to a nozzle right? It makes sense to not have it on the same nozzle as your AMS if you’re only running one ams.
That is incorrect. The filament buffers that are usually in the hub are built directly into the H2D, so you can use as many AMS units as you like (up to 4, and 8 AMS HTs) with just a splitter. I dont think the hub would even work if plugged into the H2D as it was not designed to operate with it, and there is no place to mount it either.
Here is a direct quote from Bambu wiki:
This is how you connect them, with 4 into 1 splitters or you can even print one. I used a printed splitter on my P1 and X1 with 8000 hours of problem free operation.
3 Likes
Thank you for the info! I stand corrected. This is great
1 Like
Yes - I have done exactly that.
The answer is quite simple, the main positive of the second nozzle is multi-material as type not as color. In a multi-color print environment you’ll have few dominant colors and more to change. Are they all on right or left nozzle AMS makes no difference so better to put them on one side only, as the second nozzle will spare you the material of only one color change. However if you want to print with few colors of each material type, then you’ll need AMS on each nozzle.
H2D comes with only 1 AMS as this is enough for most use cases.
You cannot even compare BambuLab and Ender 3. If you want good prints with little to no failures and a little set-up P1S is enough.
If you prefer having more sensors then go for X1C.
If you want the capablity to print with different materials in one print like PLA+PETG (yes you can do this), PLA+TPU, etc. and aditionally you believe that BambuLab will update the firmware so 0.4 + 0.2 nozzle print is possible, then better invest in H2D.
As for me I landed on this post because I want AMS-HT on one nozzle and AMS 2 Pro on the other.
Can I print without the AMS-HT - yes I can, but I want it for the drying functionality.
1 Like
Thank you for your detailed explaination. I was starting to debate a setup similar to what you describe due to the higher heating of the single roll HT and looking into despicable PVA which needs this. Such a shame the AMS2 can’t reach those slightly higher temps.
In my mind it logically makes sense that AMS2 across multiple heads must be quicker if you plan which AMS to put which colour in (and apparently the software auto does this) I.e. if the print is mostly white but has red blue and green in it, then having one head do white + support and another doing colours would surely be quicker than one doing white+colour together and changing constantly? but I’m FAR from an expert.
We are still trying to work through with the ender, although did just have to buy a replacement hotend as a PLAsilk print completely destroyed it. But if I do buy I think it would be only the H2D or X11’s, probably H2D as always like latest tech and seems silly to get something older, though my only concern is obviously proven reliability vs new and potentially buggy. We shall see. Thanks again though.
1 Like
Hi,
this is still not clear for me. And I what to extend the topic a little bit.
I plan to buy a H2D and I want to use 2 AMS on each nozzle (hotend). - Also 4 AMS in total (see symbol photo)
Nozzle 1: AMS 2 pro + AMS
Nozzle 2: 2x AMS
Is this possible?
Do I then need 2x “Bambu Lab AMS Hub” (one for each nozzle) or?
As ther is only 1 6-pin connection on the printer, how does the printer then know which 2 AMS is connected on nozzle 1 and which 2 AMS are connected on nozzle 2?
BR Martin
First, you don’t need a hub, you only need 4-in-1 splitters.
- You connect one of the splitter to nozzle1 and an other to nozzle 2.
- You connect the AMS2 pro to one of the splitter entry of nozzle 1, you connect the AMS to one of the other entry of the splitter to nozzle 1
- You connect one of the two AMS to one of the splitter entry of nozzle 2, you connect the other AMS to one of the other entry of the splitter to nozzle 2
- You connect a 6-pin cable from AMS2 to the H2D, you connect the first AMS to AMS2 with a 6-pin cable, you connect the second AMS to the first AMS with a 6-pin cable, you connect the third AMS to the second AMS witha 6-pin cable.
Note that you don’t need a power supply to AMS2 as that’s the only one capable of drying of all your AMSs and the H2D can power one for drying (one only). You may receive a message that you have multiple AMS and no power supply but that’s OK.
The printer will pull a length of filament from one of the spool in each AMS to know which AMS is connected to which nozzle and store this in memory until you change the order (if you do) and then you can force a re-mapping of the AMSs from the screen.
2 Likes
Thanks - sounds great!
Are you shure it works without the hub and just with the 4-in1 splitter?
Whats the advantage if I would use 2x the Hub instead of the 2x 4-in1 splitter?
BR martin
Since the hub is already integrated, there’s no need to add another one. It only functions as a buffer, and when using H2D, the 4-in-1 TPFE is all you need.
2 Likes
It will be more expensive 
but I don’t know if 2 hubs in series (one in the printer and one separate) will not have them work against each other. I think it will work though and if you already have one why not try it.
Hey there! I have this setup but my Bambu Studio and Bambu Handy are not recognizing the additional (left nozzle) AMS 2 Pro despite the unit itself seeming to ‘accept’ the spools
I have this same issue. Not sure what the problem is!
I have 2 AMS 2 Pros with my H2D. I finally understand how to connect the tubing and all, but I don’t understand what to do about the 6-Pin connector for the second one. I have the first connected to the printer, but what about the 2nd? Where does that connect?
You daisy chain them, there are two plugs on each AMS, you plug the second into the first.
Martin, did you get to test out 2 PTFE adapters on the H2D yet? (One on each nozzle with multiple AMSes on each nozzle?)
I’m looking to get 2x AMT HTs, but it’s only appealing if I can have 1x of each with 1x AMS 2 on each nozzle… Putting all my AMSes on 1 nozzle seems silly.