AMS Hub needs a 5th slot for external spools. Adding a Y adds friction.
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You donāt need to go through the buffer/hub for an external spool, you can just disconnect the PTFE tube from the hub. Also why would you need an external spool with 16 AMS slots?
because TPU doesnāt work with the AMS?!?
But you canāt feed it through the PTFE tube and buffer anyway right?
Yup, unless one goes for the newer TPU filament version released by Bambu, which (at least in theory) according to Bambu, could potentially be put in the AMS. Havenāt tried this new TPU though, as of 18th of January, Iāve stopped ordering any Bambu made productsā¦ at least until my current stockpile of spares runs out.
Iād be interested to learn if someone has used the new TPU with their AMS and what problems did they face (if any).
āYou donāt need to go through the buffer/hub for an external spool, you can just disconnect the PTFE tube from the hub.ā
- Sure you can. Clunky and not very convenient.
- The tube is scarred every time you remove it and you leave little bits of PTFE tubing behind in the coupling.
āAlso why would you need an external spool with 16 AMS slots?ā
- To run a spool that wonāt fit in the AMS (which also needs some improvement/ rethinking).
- Save the trouble of having to swap a filament out of the AMS
- Run TPU from other manufacturers. Bambuās color range is limited.
- Some of us only have 1 or 2 AMS units. havenāt seen a need for more. Yet. Even then see 1 thru 3
here you go
I only have 2, but I assumed you had 4. Since it seems you donāt have 4, then why donāt you just use an empty slot thatās not being taken by an AMS?
lol. Iāve got the 4 AMS setup, but I rarely get to use more than 8 colors (even 8 not that often), so one could say that Iāve got 2 + 2 units, where the later 2 are practically spares.
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Honestly at that point I would just buy another printer and run 2 on each, I am assuming you already have a bunch though lol.
Iām not running a print farm, if thatās what you are saying, but i do own more than the X1Cā¦like a Prusa XL and an Elegoo Saturn 4Ultraā¦ I was considering going for H2D if proven a worthy and reliable succesor of the X1C and handing over the X1C to my youngest son, but since the firmware scandal, Iāve changed my mind about acquiring anything from Bambu and looking more towards K2 Plus, or the Core Oneā¦ Iām not decided yet.
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I built the Bambu 4-in-1 PTFE adapter in between. It works without any problems.
In the background is the AMS hub for āpoor peopleā.
In the foreground is the Bambu 4-in-1 PTFE adapter. The right hose is for the external coil, the left hose comes from the AMS buffer.
Sorry for the poor image quality.
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What do you mean by built it? Is it 3d printed?
I have supplemented my text once again. Didnāt copy everything the first time.
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Well, dunno! New to Bambu so I donāt understand the function of the hub at this time. I see some are running multiple AMS without it. When I got the second AMS the website redirected me to the hub and intimated I would need it. Obviously it has sensors and an MCU. I assumed the firmware was meant for AMS and not an external spool. Would it prevent a collision if one had an external filament spool loaded and sent a print job for the AMS units?
The 4 in 1 adapter is used with the AMS Lite?
Be a smart move to port the AMS to other printers.
Thatās the point of concern, as tunnng the AMS to work with other printer brands isnāt something to be taken lightly.
I have different uses for TPU that donāt include making golf balls. (Referring to the hardness shown in the video above.) Thatās what Shore 68D is equivalent to. In fact, I donāt even consider a TPU filament thatās measured in the āDā scale. If I need something that hard or tough, I use ABS, PLA or a Nylon.
Thatās not to say it doesnāt have a place. Just not for me. 
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