Trying to use TPU 95A HF with X1C w/AMS and getting the following error on X1C screen.
“Bambu Lab TPU 95A HF” is not supported by AMS
Yeah your going to need to print off the external spool as 95A TPU is not compatible with the AMS
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TPU doesn’t work well with the AMS. Because: you can’t push a rope. 
It’s too “noodley”. It’ll bend and deflect and bind in the PTFE tubing.
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I would suggest a heated spool holder as it really prints a lot better if it is super dry
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What is your actual question?
Sorry, I guess I should have mentioned I am new to 3D printing and was surprised the TPU is as thin as it is. Wasn’t quite sure of my options. External spool makes sense
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Welcome to the hobby.
Filament that is compatible with our Bambu printers is all a standard thickness of 1.75mm - give or take a few smidges either way for manufacturing tolerances. What makes TPU incompatible with the AMS is its lack of rigidity, so it cannot be pushed without easily folding over on itself. The product page for their TPU does call out the limitation.
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Hopefully nobody minds if I bring this back to ask a follow up.
If we have a multi-AMS setup and we want to use something that isn’t AMS compatible… how much of a hassle is that? Can the external spool filament go right into the final PTFE tube at the top, bypassing the multi AMS hub entirely?
Yes. some print adapters that allow either the external or AMS.
For the A1 the hub is ontop of the extruder. You could use any of the empty spots.
A splitter like the one on the A1 is available for $5 for the X/P series on the store, or you can print one of many available on Makerworld.
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Just noticed this, is this the “splitter” you mean? (I have an X1C.)
So we can feed a multi-AMS hub output PTFE tube into one of those 4 slots, and use the other 3 for stuff that isn’t AMS compatible? The description says “1 AMS and other 3 filaments” with no mention of the multi AMS hub.
Also I’m not sure I understand why that 4 in 1 adapter isn’t a 2 in 1. Is it expecting you to have up to 3 non-AMS PTFE tubes going to 3 external spools, and you manually feed whichever non-AMS filament you want to use in? If you have to manually switch the non AMS filaments anyway, I don’t get the point of the extra 2 inputs. Maybe I need to see a picture of this thing in action… the picture on that link is a little confusing.
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Less expecting and more allowing for.
The idea is that you could have the following setup or some variation of it:
Holes (ports, whatever you wish to call them)
- AMS
- Direct external spool
- First external output from a dry box
- Second external output from a dry box
As you have discovered, less is a problem, so, this becomes; more is choices.
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Right, you said what I meant much better.
So basically we don’t have to disconnect the PTFE tubes anymore to switch between AMS and non-AMS - that is pretty cool. The only thing I didn’t find a reference to was if the multi-AMS hub (instead of the single buffer) is compatible… but I guess it would be?
I may have misread what you asked, if I have, correct me and I will give it another go.
- You can plug the standard buffer (which comes directly with the P & S series printers into the 4-port thing.
- You can plug the AMS Hub into the 4 port thing.
The mindset you need is this “If I could plug it into the printers inout, I can plug it into the 4 port thing”.
The 4 port thing is a convenient upgrade (and cheap) to the section of PTFE tubing which exists on the back of your printer and goes into the printer.
The benefit is you can plug in anything that relies on PTFE tubing to get there or in the case of an external spool, filament directly into one of those holes.
You just need to make sure that only ONE of the pathways is used at at one time.
Do not try running the output from your AMS through the AMS hub and into the 4 port thing if your external spool has filament also going through it and loaded on the printer.
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you can run that hub into the buffer, or you can mount it at the top where the PTFE enters the chamber. Either will work.
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Yep, I think we’re in agreement and this sounds good.
So I guess I have one more accessory to add to the order list. At least it’s a cheap one.
I bought one and have yet to install it. £5 isn’t a huge cost, it is surprisingly inexpensive.
No, the 95A HF is not AMS compatible. The picture you posted is the brand new “TPU for AMS”.
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Yep, and in a linked video I posted in this topic about interlocking materials in OrcaSlicer (video not by me), the hardness is supposed to be 68D but tested out to around 60D on a small cube.
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