For me, the following features would be really useful/game-changers:
Two or four outputs. So, an integrated hub.
An active module for filament detection at the printer input.
These two things would minimize one of the biggest drawbacks of the AMS in general: that it has to completely retract the filament every time. With the AMS3 Pro, it would essentially just pull the filament out of the printer and park it there. For the H2D, and especially the H2C, this would be a huge performance boost.
Then it’s just minor things for me, like automatic drying when a certain humidity level is reached, and so on. But those are software features that could already be implemented in the AMS2 Pro.
I’ll also add that I would love to have the ability to add custom user defined filament types to the AMS so I don’t have to pick a proxy. Example, picking Generic PC when the filament is POM
Delete the built in hub, pack an external hub in the shipping box with it, only ever allow hub to be an accessory [if used at all!] strapped to the machine near the toolhead, or be the toolhead itself
Give the same slightly more powerful motor to all 4 hoses now that theres no internal hub motor
I would prefer it to be core-held spools instead of standing-on-rollers but I dont think bambu will do this for brand reasons. Core-held spools only bind up when theres a REAL knot.
Misunderstanding, I do want 4 lines, the internal hub being located a meter of PTFE away from the nozzle, with only one output, is a poor design choice for the next era of tool-and-nozzle changers. Put that hub closer to the toolhead, [if its needed at all], and you will waste less time in AMS tubes. Even the A1 is faster at filament changes than many of the current single nozzle offerings because of the location of the cut line and the location of the pullback line. Cut and pullback 4cm is way faster than cut and pullback 60cm, and one tiny spring makes it so you dont even have to worry about the complexity of respooling the slack.
The new AMS fills the PTFE tube with hot air so it dries the filament in line as it sends to the printer
(have seen such a system home made, but it needed a metre long tube and a hair dryer; hoping bambu engineers can invent some hot air vortex magic to reduce the length)
I want it to be able to print during the drying cycle (obviously not THAT AMS) but if you have 2, or need to print something while drying and can use an external spool.
That would entail either a. a firmware update or b) (my preference) an independent push button dry cycle on the AMS itself that will initiate the dry cycle and functionally disconnect it from the printer.
Hey I got a surprise for you - SirayaTech’s 85A TPU is manufactured with smooth walls on the filament, [not the kind of zigzag crazy curlyhair bends in lots of cheaper TPU spools] and will feed thru tubes fairly well and print like a normal TPU. It will not do AMS switchouts mid-print [jams], but if you load it, lie to the machine and say its PLA or TPU/AMS, and set it up, it seems to handle it nicely.
Thank you, that sounds promising enough to check out for at least the all-TPU air ducts, @Bullocks . There is another housing I’m making from ESD-safe PETG with TPU inserts–little bumps in a cylindrical wall to friction-retain an optical calibrator. This one I’ve been doing with the PETG in the AMS2 and the TPU in the overhead HT.
An upgrade kit to upgrade the AMS 2 Pro to 4 outlets, having had a look at the current feeder module, this should be possible. This, together with the filament switcher upgrade with 4 inputs, should significantly speed up the filament switching for any BBL printer.
A flat top to be able to stack the AMS units. I would rather go vertical than horizontal. I am fine with needing to remove the top AMS units to get to the ones below.
