Hello,
What is actually possible and what is necessary?
The A1 Hub is currently unavailable; it was briefly available at 4:30 a.m. today and then immediately sold out again.
The AMS hub from the P1 X1 is available, but does it even work with the AMS HT together with the A1?
And then I read that you shouldn’t use the drive in the hub for TPU, so how does filament retraction work?
Quite a few questions, but I haven’t found any clear answers anywhere yet.
I would really appreciate some answers.
Best regards,
Translated with DeepL.com (free version)
According to the product specification page for the AMS HTS, TPU 95A is compatible
Scroll down to the specifications.
I have highlighted the specific section for you.
Filament bypass location
If you are using any TPU that is softer (less than 95), then you must follow the instructions in the TPU printing guide.
https://wiki.bambulab.com/en/h2/h2d-tpu-printing-guide
It’s clear that the TPU 95A is compatible.
But what about the rest of the hardware?
That’s my real problem.
What do I really need?
Is the A1 AMS hub the only option?
Or does the P1 X1 AMS hub also work?
Or does the “normal” P1 X1 feeder also work?
I still have 4 new ones of those here.
And the feeders also have a 4-pin and a 6-pin connection.
I do not think English is your first language, so I will try again.
My clarifications
Can the A1 (or A1 mini) print TPU 95A using the AMS HT?
Yes
Do you need the A1 series AMS hub?
Yes
Can you print TPU 95A using the AMS (or AMS 2 Pro)?
No
Can the P1S (or P1P, P2S) print TPU 95A using the AMS HT?
Yes
Your questions
Is the A1 AMS hub the only option?
Yes
Or does the P1 X1 AMS hub also work?
No
Or does the “normal” P1 X1 feeder (buffer) also work?
No
Or does the P1 X1 external port also work?
Yes
I still have 4 new ones of those here.
Will not work
And the feeders also have a 4-pin and a 6-pin connection.
The A series AMS hub includes the correct cable
Summary
A series
TPU 95A Direct through the 4-way buffer on the print head = Yes
TPU 95A using AMS Lite = No
TPU 95A using AMS or AMS 2 Pro = No
TPU 95A using AMS HT = Yes
P or X series
TPU 95A using the external input (on the rear, top) = Yes
TPU 95A using Buffer = No
TPU 95A using 4-way hub = No
TPU 95A using AMS or AMS 2 Pro = No
TPU 95A using AMS HT = Yes
Hello,
As you correctly guessed, English is not my native language, so I use a translator.
Sorry if not everything is always easy to understand.
In any case, thank you for your answers.
I understand most of it now, but there’s one thing I’m still not quite sure about.
What is
"Or does the P1 X1 external port also work?
Yes"
What is the P1 external port?
I can’t find it in the Bambu shop.
I’m not trying to save a few euros or anything like that.
The main thing is that I want to print TPU for AMS from Bambu with an A1 with AMS HT.
The A1 AMS Hub is not available; it is constantly sold out.
So I’m looking for a way to still print easily with the A1 and AMS HT TPU for AMS.
I hope someone here can help me.
I couldn’t find an answer in the WIKI.
There are two ways the P and X series receive filament.
You have spoken of the Buffer and the Hub, that is the main way.
The alternative way is the external port.
RED TOP RING
OK,
I understand that now, so that’s not an option either.
It’s a shame that Bambu doesn’t offer any other options.
Now I have a printer and an AMS HT, but I can’t do anything with them because Bambu can’t produce the A1 hub or offer any other options.
So either limit everything to one thing or be able to deliver what is needed.
I’ve been using Bambu printers for several years and just bought the A1.
But that was probably a mistake.
Limiting things to your own “universe” can work.
But only if you can meet the demand.
Bambu doesn’t seem to be able to do that.
And there are plenty of alternatives now.
They do produce the A1 hub, I have told you a few times, this is the solution.
Buy the A1 hub
Connect the A1 series to the A1 hub
Connect the AMS HT to the new A1 series hub
You are now printing TPU 95A using the AMS HT to your printer.
You can bypass the AMS HT and print directly using one of the four existing inputs by hooking the TPU 95A to the external spool holder.
Yes, you’ve told me several times that I should buy the A1 Hub.
I’d love to, but it’s always sold out.
Even now, just look at the link you just posted here—it’s sold out there too.
Otherwise, I would have bought it long ago and wouldn’t have asked at all.
I don’t want to use an external supply for certain reasons, and it’s clear that it works, but it’s not an option for me.
And now there’s also the answer that the filament buffer from the P1 does work after all.
And that’s exactly what I wanted to know.
@MalcTheOracle
You’ve claimed several times here that it doesn’t work.
So which is it?
I told you what Bambu Lab tells us.
If it doesn’t do damage to your printer, great.
Hi,
just a reminder that you can use both the Bambu Hub for the X1 P1 series and the feeder that comes with the AMS1 on the A1. It works perfectly, and if the A1 Hub is unavailable again, this is a good alternative.
Nothing will be damaged, and there won't be any problems.
@PMalcThe Oracle
You are completly wrong this is working without a problem.
Regards, Martin
OnShape
February 9, 2026, 5:23am
15
Just to be clear you can’t use the feed feature when printing tpu 95 with the Ams ht.
you must use the bypass filament outlet
From the Ams ht specs
Bypass Filament Outlet: TPE, generic TPU, Bambu PET-CF/TPU 95A, and other filament that contains carbon fiber or glass fiber.
