I ordered one of these kits, y already have water tights boxes (going to use ine to hold 5 spools (some dissecant on the back hanging some rollers to mount the spools in place.
solid state dehumidifier
These should make things pretty easy to set up. They are kinda of pricey
The Rubbermaid brand ones hold really well. I’ve never tried those other ones.
Even without a rubber seal.
I have 4 of them that are still holding, 6 months later, and the silica beads still look pretty close to the same color. All still reading 10%, with my indoor humidity remaining constantly between 50-60% around it
Bought several cereal containers, modded to enable filament to be pulled directly. They work great, but I didn’t like the cost though, and awkward to stack. Eventually ended up buying ~10 “Sterilite 20 Qt. Clear Gasket Storage Box, Blue Latches with Clear Lid”, $7+tax each. I couldn’t figure out a way to make vapor proof containers for less when you consider time+material.
https://www.walmart.com/ip/Sterilite-20-Quart-Clear-Gasket-Box-with-Blue-Latches-Gasket/39916455
Also bought glorified ziplock bags https://www.amazon.com/gp/product/B0CD2MWB1X. Never got into using them, even though they come with an interesting vacuum pump. The 20qt gasket containers have been good enough for my TPU/PETG/PLA.
Haven’t bothered tracking humidity, I will now thanks to this topic and folks here. Am using the less evil/toxic silica https://www.amazon.com/gp/product/B01N7OE6WK.
Am in the habit of putting spools in my heated single spool Sunlu filament dryer before, and after use and removal (before putting back in the water proof container). I don’t have a printer farm or production setup, am just goofing around with basic filament materials, so far…
Order enough sterilite containers and you get a free large Walmart cardboard box for pets/kids to play with, or to use as a jank AF Maker desk lampshade…
That’s what those 3 in that picture are sitting on top of… 54qt. Sterilite. That’s my “Not in use” storage
That what mine sits in, same exact one! I drop in the desiccant sacks from the spools, and if the meter ever gets over 20% I recharge them.
I have been using jumbo ziploc bags with beads. Now i did not realize how long ago i got them i think i need to throw the silica in one of my dryers!!! I have 3 spools per bag!
I use this exact same box. Works great.
I fill up old glass spice/seasoning bottles with desicant and drop those in.
Brilliant, I’ll have to get some of those. I have a large box that my wife bought, and I think it was a bit pricey (Husky brand), and it’s good but not for filament. Also being large is a disadvantage since I can’t easily see what I have and I have to dig sometimes to even see.
I have IKEA 365 Boxes, they work great for two spools or one 2kg spool of Prusament. 
So check out this tube i found about dessicant!! Very informative!
The wild part was where they showed it rose humidity in rolls that were just dried!!!
Neat video, and neat comments too. Some folks mentioning Panasonic microwaves with inverters can generate more fine grained power levels instead of just being full on-off like most microwaves. Active temp/moisture monitoring and power control could minimize time and energy required to dry filament?
You know i do alot of youtube anymore, but i never really lookat comments, guess i should start!
After close to four months, the box with 1kg of silica is hovering around 17% the 200 gram one is at 24%. My conclusion is certainly that more dessicant is better, and that my original somewhat arbitrary guess that about 400 grams per box will be enough to stabilise in the long term
Note that these boxes have not been opened in that time, my filament is presently stored in sealed boxes but no drying material at all and these boxes average 60% RH, which is still around 75% of ambient. I suspect that is because the filament is sucking moisture from the air!
In the meantime I’ve been printing lots of PLA, undried, without a problem, but I think I’d still like to give PETG a cursory touch up.
I’ve noticed the first foot or so of some of my old stock PLA are quite brittle, but it’s not spreading any deeper than that - I am wondering if it’s a combination of “warm from the dryer” pla being close to the hotend for a bit before removing it?
End of musing.
Here’s a Kickstarter that’s a bit curious, because every one on this thread could just build it but there’s obviously a market.
At first glance it looks OK, but will be expensive to build - the kickstarter is for the files and has raised €30,000 apparently.
That seems like a lot of money for just files. Which is not a critique, rather, it makes me wonder if I have any ideas that can be monetized like that.
Or maybe a better path is just opening up a storefront for my printable small-parts boxes and use Slant print on demand to drop ship while I just sit back and watch the money roll in. 
I thought the same, although I presume there are links to the bits and maybe some instructions, or who would the customers be? A lot of people (including me) are super happy assembling Ikea stuff, so there’s that mentality, and even downloading a model and printing it gives one a real sense of “I made it” even though all I did was load filament. I guess my printers are like that - I work hard to think that I “assembled them” rather than “made them”, but I still get that satisfaction of finishing a Lego project!
I have to remind myself that not everyone has @jamiek’s brain - and while I think “mechanically” I am much more comfortable with some instructions when it comes to electronics (although thanks in part to hanging around here I am way up in the novice ranks now).
I think it’s been really well marketed though, and I’d be interested to see if there was any profit at the end of the day. If you can follow their marketing trail, that would be a great start to advancing those thoughts!
On the other hand, from my personal perspective, I don’t want the hassle of having to manage customers, so I’m happy just to watch my download count for stupid little things as people find them useful!
There is a weird phenomenon where the price you charge is the first data point for its value. If you offered up a telescope design for $$$, it must be pretty good to cost that much. I used to sell speakers which are very difficult to evaluate. I swear the selling point of some speakers was just that they were expensive.
So like beats by Dre…
