In the old AMS i had a descicant box in the middle with a humidity sensor. Now with the AMS 2, i feel i don’t need that anymore, as a sensor is build in. Is that a correct enough assumption? I do realize that with the normal bluetooth hydros i have matter integration etc, but I think i rather put more desicant in the AMS.
Any opinions about this? (i am sure there are some :))
Frank
I just set up my AMS 2 Pro. Do I need to configure it again in Bambu Studio? I can’t find a tab that shows me my humidity level.
i would love to have any kind of descicant box in it… this little plasticbags cant be serouis
I recommend picking up some stainless shakers on Amazon, and dropping them into the filament spools. These fit very well (2.8 inches tall = ~7cm)
https://www.amazon.com/dp/B0824XK6PN
These 5cm x 6cm ones fit even better.
https://www.aliexpress.us/item/2251832711595145.html
I prefer to use activated alumina as a desiccant, but the color changing silica, 4A molecular sieve, or calcium oxide beads all work.
Activated Alumina : https://www.amazon.com/dp/B0B81VM24F
Or if you prefer to print a solution, I like this model:
In clear PETG they’re beautiful, quick to print, and functional. If your slicer (I’m new to the Bambu ecosystem) has sequential printing and you space them correctly you can print several at a time. Just avoid PLA and likely ABS/Asa. When you accidentally drop one, if it brittle, it’s like a desiccant bomb lol.
Also I’m reading the ams pro 2 is causing filament rolls to hop and flop. I’m hoping when I get mine these will help hold them down.
Hope that helps! It’s a great model.
One more note, I HAVEN’T tried these in any Bambu spools yet.
Does anyone have problems with moisture in the ams 2? In tne ams 1, i got a humidity of 15% with all this little silica containers. Now i have about 25%…
Not one bit. I am curently printing and it states a 5% value. And that has been true most of the time since the printer arrived like 2 weeks ago.
I have 3 sets of silica in there. But i think the main reason is the heat from the printer below it 
Oh and is that was mentioned above. You should print those containers not in PLA. If you use the AMS2 for drying you can have temperature in there that will make them loose their marbles…
I set my H2D and AMS 2 Pro up per the quick start guide, loading four new spools of BL PLA Basic. The lowest reading I’ve seen is about 30% humidity. I have the stock desiccant installed. Could I be doing something wrong? Why isn’t this thing doing a better job keeping the humidity down? I haven’t tried to run a drying cycle yet, but my brother lives nearby and his OG AMS stays under 10%.
Can anybody help with this? Brand new AMS 2 Pro and I’m only seeing ~30% RH inside. Room is always 45-50% RH (I’ve always owned acoustic guitars so I’ve always watched room RH very closely and use a humidifier over the winter months when electric heating is being used). The desiccant beads in the AMS 2 Pro are also darkening pretty rapidly.
A filament dryer without desiccant does 3 things. Its raises temperature, moves air, and lowers “Relative Humidity”. Relative humidity is directly related to temperature. When the unit heats up it will naturally lower relative humidify. As it cools down relative humidity will increase. This alone doesn’t do much long term without something to absorb the humidity. These 3 things working together will allow your filament to release moisture. But the humidity in the dryer is still there, the vents will help with some moisture but not removal of humidity. The AMS2 has factory desiccant packs to absorb that humidity that is released by your filament. Desiccant by nature likes to absorb humidity. The factory desiccant packs in my experience are not large enough to do a great job of absorbing enough humidity fast enough to lower absolute humidity in the AMS. I added 3 of the large desiccant holders to the AMS2, and I went from a best of 20% humidity down to 7-9% and it stays there even after the temperature lowers to room temperature.
Simply put you need more desiccant.
Thanks. I just ordered the Slice Engineering activated alumina canisters that go inside the spools. We’ll see how those work out.
If those work out well you can get the metal containers on Amazon for $1.60 each and the activated alumina by the pound there too. Don’t get me wrong, I love Slice Engineering, but I’ve seen sites selling them with a huge markup.
Thanks… I was able to change my order and save a fair bit of cash (enough for a couple more spools of filament).
Would love to get some of these as well, but I’m having a difficult time finding a reliable store selling them in Europe.
How about these? They aren’t as cheap as the ones I posted above but still somewhat cheap.
https://www.amazon.de/-/en/RTBRCG-shakers-shaker-cinnamon-matcha/dp/B0CLRR4FL2
Oh, I meant the activated alumina desiccant 
Ohhhh, sorry lol.
I’ve had the stainless steel shakers with activated alumina in all four spools inside my AMS 2 Pro overnight and humidity is still 25%. Is it possible (probable?) my AMS 2 Pro has an air leak somewhere?
I’d get a second opinion on that RH reading. You seem like a person who will have a hygrometer handy, what with the git-fiddles. Stick one in there to verify whether it’s actually as soupy in there as the AMS is reporting