Oooo 4x8 carriers. If you dont mind sharing, how is it compared to this one?
I like that one and it works, but somethin about it my wrists disagree with; and now I’m remembering I want a new one!
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Mine is different and based upon a model made by a woodworker. I want to amend the design a little, (it was one of the first things I ever designed in tinkercad and I am using that idea to help learn a CAD program) and then I will post it on makerworld.
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Hands down. My air dryer for my filament dryer sees every spool of filament that comes through my door. It has made it where I just don’t have water issues, don’t have to chase filament tuning, saves time on the dry, and provides filament that when placed in a poly cereal box pulls the humidity somewhere into the low single digits at room temperature.
Saying that, this print is outdated now and I’m working on a new version that adds fixes/changes to make it work better, easier/faster to print, and less fiddly to complete. But without a doubt my air dryer has been the most useful thing I’ve printed because it ups my game on literally everything else I’ve printed.
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Same as MZip, but not as advanced as his solution (I might look into more details of his solution).
I got a cheap shoe dryer and built a desiccant dryer around it => Desiccant drying with a cheap shoe dryer.
For me that is the fastest and easiest way to dry the desiccant for re-use.
Not published, but I am using the same shoe dryer to dry my filament when it arrives.
Using a sealed box with holes for the dryer’s hoses and some holes to let the air out on top. No regulated temperature or time control (dryer offers 30/60/90/120 minutes) but I get ~55 to 60 degrees inside, which is ok for PLA and PETG.
Printed parts are the connectors for the hose on the sealed box and the lids to led the air out (and close the box when drying is finished. And of course the stand for two filament rolls inside the box.
With a costs of only 849 PHP, that was at the time I build this desiccant dryer only ~15 US$ or ~13 Euro, this is the cheapest dryer I could find.
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One thing is since it looks like that recirculates water liberated from the spool through a generalized bed, all the beads will pick up water at about the same rate. That’s very similar to loading the dryer with beads and carries the same issues of repeated use - the water in the beads will limit drying.
But I’m assuming from what you said that you probably then run a dry cycle on the beads between spools so in practice it should work well and I’m guessing that’s the way you do that. 
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I’ve had my printer for all of two weeks, but my favorite useful print so far is a light switch cover. Much nicer-looking than the previous solution I had (a few haphazardly attached strips of painter’s tape), with convenient little holes that make the switch accessible in case I do need to cut off power to half my room for some reason.
(My account is too new to include actual links, but it’s the “Rocker Switch Light Cover w/ pinholes” remixed by Kallea.)
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Glad my Makergear failed, so I could justify my Bambu. Years ago, I designed a holder for the Dryer Sheet box above the clothes dryer. Every time I refill the dryer sheets, I realize that’s likely the most-used item I have designed, and it’s simple. I’ve designed some pretty cool things, but it’s the stupid things, like the box holder, that make life simple.
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When are you ever done acquiring board games?
The “pile of shame” (of unplayed games) must grow.
How do you measure “useful”? The most downloaded thing I ever published personally was templates for Warhammer back when 3d printing was newer and no-one knew how to do CAD. The thing I published that affected my life most was a part for a nerf blaster. I occasionally get tagged (taken out of play) by own model at games.
