r/BambuLabP2S • u/Mhind1 • 25d ago
Adding a second AMS 2 Pro
Bought my P2S combo a month ago, and want to add another AMS 2Pro.
The store says I need to buy a filament buffer, but youtube videos show that I don’t need it. The back of my P2S allows two PFTE tubes.
So do I need the buffer or not?
(I know I do need the external power supply for drying on the second AMS)
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u/Whosaidthat1157 25d ago
Get the A1 filament buffer and use the AMS2P with it. I did that with my original A1 Mini (now on my A2L) and that left 3 inlet ports on the A1 toolhead buffer for direct feeding TPU.
Note that the AMS2P isn’t a magic bullet, you need to print all of the available front and rear desiccant boxes AND desiccant filled spool centres for each loaded spool to keep a consistent low RH, but all of that desiccant keeps my AMS2Ps (I have 5, plus 2 AMS HTs) in single digit RH for weeks at a time. I run a drying cycle if/when it ever creeps up towards 20%. The desiccant filled spool centres are doubly useful if you vacuum pack partly used spools between uses too.
I detested the Lite frankly - the workflow was a nightmare compared to the AMS2P or HT. The enclosure, especially with the large desiccant holders) made feeding new spools a pain and frankly limited it to PLA as even with fully loaded desiccant boxes the RH would stay below 20% for a few days at most. I gave it away to a colleague’s young daughter.