Where would this tan be pulling makeup air from? If it’s inside your house your pulling 50% humid it in the room.
I’ve never done more with PLA and PETG than put it in a ziplock bag with a desiccant pack.
I have a filament dryer that I use for ASA filament and feed it directly from the dryer.
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The “finishing room” is a special sealed off room in my garage. Basically the garage is quite porus with 3 garage doors. When air is pushed out of this room, it draws air from the garage. Now the garage is quite humid but not to the degree the moisture being released from whatever I am drying.
I must admit, I don’t know all the physical principles occurring. I just know it dries stuff out when you have a wood stove fire.
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David, I feel like I may be overthinking it. I just know there is a chance this filament might be overlooked and that room is quite humid.
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If you’re pulling from the garage and that air is coming from outside that will be the humidity you get. Now if you take cold air and warm it the relative humidity goes down because warm can hold more moisture
I definitely have considered that. That is the other reason I bought the filament dryer.
You know, the X1 has a drying cycle function.
https://wiki.bambulab.com/en/general/bambu-filament-drying-cover
These fit inside the AMS just fine.
https://www.printables.com/model/585282-silica-dry-box-with-window-for-bambu-lab-ams
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@holla2040 I have drying bead boxes in my AMS units as well, but no hygrometer. One comment I’ve seen about having a hygrometer in the bead box itself is that the reading will be as a result of the bead proximity and not necessarily the AMS interior reading. If you have another hygrometer, see if it reads similar or different sitting inside away from the bead boxes.
I like that it has this function but the benefit of the filament dryer is that you set it and forget it. This function within the printer has the disclaimer that “the spool may not tolerate the heat” and you need to turn it over after 6 hours. That is one more thing for this feeble mind to remember! 
That would be true. The beads with indicator color change might be good. I think I will print these baskets. I have the beads for/from plasma cutting desiccant filter.
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Someone else will have to try this. It’s so dry here in Colorado, 23%, that none of this really matters.
Yes, I use the same beads in my plasma drying setup for the AMS units. I can then batch re-dry the beads every few months once I have collected enough that have color changed. I put them in a paint strainer net bag in a dedicated food dehydrator for workshop purposes.
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Yeah, that is why I am kind of lazy about keeping my stuff bagged up. Most of the time I have a full AMS, and 3-5 rolls open sitting on the desk next to the printer.
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My AMS lite is completely open and I haven’t heard or had any issues with filaments. Nice to be organized and store in dry location but past that I wouldn’t even worry about it. You’ll be changing out filament colors on almost every print. The issue might be the enclosed lid but you must need it for some of the exotic filaments.
I had a roll of PLA in my AMS for about 10 months, eventually it became unusable due to constant breaking. I have taken apart my AMS several times because of that now-in-the-trash roll.
So do you think it could be the lid keeping heat from bed inside AMS?
There is no one size fits all when talking about filament drying. Does PLA and PETG require drying, not generally but there are circumstances they might. TPU, CF variants, Nylons and other engineering filaments require active drying. Geography, weather and time of year around the world is also a factor. Coastal areas have higher humidity than other places. If your PLA cracks then it’s wet and needs drying. Excess stringing can be wet filament or too high a nozzle temp.
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Age and or moisture. I have not had to deal with it myself, but I have heard tossing it in an over, or dryer at 60*c for 4-6 hours can cure some of that.
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I have my printer out in my cold garage, 50-60F.
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That is not cold, that is comfortable. Where in CO are you at that you winter temp is 50-60?
Mine is ambient +30 in the summer, up to -15 in the winter if it’s a nice day.
I’m in Montrose, 7F here yesterday. Its our garage which has mild insulation.