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Your old desiccant was probably just pinning for the fields.

This is much better than what i have. What do you think of those bags that you vacuum seal? I have been using them with descant containers in them, but not sure if that is effective or not.

Printed my containers out of polycarbonate. I just pull out the containers and stick them in the oven at 190 f (88 c) No more spilled beads all over the house. ABS and ASA would work and PTEG probably would.

Great video! I intend on doing this project. However, I don't see the dry box files for the Rectangular Hygrometer.

thanks dude

but you not say in video the stars will hide when u touch it there any way to keep it ? not hidden in future ?

Yep have to buy 4 sets to be able to use all 4 lol

Just a small update for those who've asked: 9 Variations have been added for hygrometer variations, including different snap mounts for this round hygrometer (horizontal, vertical and 45 degree)

Cool trick with the infill. I use the ones from needitmakeit on YT. They look funny in the slicer too, but are printed in vase mode for my P1S combo.

I’ve had my P1S and AMS for a few weeks. Very pleased. I understand relative humidity and how to use SG. So I looked, and discovered holders on MakerWorld and printed the 5 front ones, centre with humidity gauge, and fillable ones for the 2 rear slots. A bag of SG costs about £6 in the UK, and this is twice as much as is required. The benefit is this allows the SG to be rotated once the RH goes above say 15% and the used SG dried, ready to be reused when required. 😊.

I think Stoli is an anagram for "I lost"

Good idea though they do make rechargeable desiccant packs now.

Quite too many words and too much importance for the simple design solutions used to keep desiccant into AMS. There are probably 20 variations for these boxes everywhere. Other solution is to have spools with dessicant towers - and you have protection for material even when it is not placed in AMS.

I've installed orca-slicer because it has this scripted... but orca slicer failed to start (core dumped) That brought me to you... Subscribed!

Recently I got a Dry Cabinet from Production Automation Corporation (PAC). They are made by eDry. So the smallest one is just $200 and keeps 4 filaments very dry. Currently mine is at 4.7% humidity. It CAN dry wet filament, but it does take a few weeks, but no heat. And unfortunately it doesn't work for an AMS, but it is very handy to keep those filaments lying around very dry. Indoor air is about 40% and in the cabinet, under 5%. Nothing to heat, replace or recharge.

Can you leave it on when printing?

Oh they can leak!

Does it matter which type of PLA? Great video.

The Bambu Lab dessicant can leak, found that out on the weekend. Comes out an oily consistency. Printed the in desiccant holders already, adding these in now. Already had colour beads for spool wieght.

Been using these beads for months in small jewellery bags, then put them in the filament vacuum bags with the dry filament spools. ps. the humidity here in the west of the UK is constantly 70%.

So far im also using the color changing ones, but with the hygrometer inside i start wondering if the ones without the color indicator wouldn't be more effective / last longer. I've read that a few times, but haven't done a A/B comparison yet.

I’ve heard with this design that the Hydrometer can read more dry than the spools are experiencing. This is because the hydrometer is against the desiccant. I’ll probably leave the center pocket either half full, or even empty to compensate.

Why limit this to a AMS? I use plastic storage totes (zip lock, they have the best seal) i do not have a drying issue, this is just something i have done sense i started 3d printing. when i open a new roll i just toss the packet in the tote. on some of the Qidi filaments with CF I use a SH02 and dry it from 6-12 hours depends on what filament im using. Im going to make one and put it in the tote.

Wait is it a dessicant or a parrot? 🤔🤪

1. I recommend the oven for drying silica gel. I found the microwave made the beads sticky and clumpy. (I could just be my microwave). 2. A friend just recommended activated alumina which he says works better and last longer.

I use tea infuser/strainers made from stainless steel as containers for the silica gel. The ones I use are cylindrical with 4 cm diameter, 6 cm height. I got them from Aliexpress, I guess Amazon has them too. That way I don’t have to empty out the containers to put them in the oven. BTW, you shouldn’t microwave silica gel, because the microwave creates hotspots and degrades the silica over time.

THE PARROT SKETCH

I've noticed is that the desiccant trays at the bottom of the AMS (I have both) soak up moisture significantly quicker than the front set. I guess this makes sense since moisture is heavier than air and should thus naturally sinks. Who knew? :P In short, my ANS finds it easier to stay dry with the bottom trays and I'm not sure the front ones contribute much until the bottom are near saturated. A shame, since they hold a LOT more beads.

Microwaving is quick and nasty and will damage the beads or risk burning people. Oven is much safer. If you are paranoid about having cobalt chloride dust in your domestic kitchen oven, buy a small digital fan forced oven such as a Breville Smart Oven, there are many others on the market. Avoid cheap infrared toaster ovens, those have very poor thermal control and monitoring (about as poor as your microwave ;) )

I printed a different design of holders for the front of the AMS using polycarbonate and the whole thing goes in the oven. Works perfectly at 105 degrees C. I dont have anything in the original dessicant things in the bottom of the AMS.

Watching that % drop......wow.....

Please test with the hydrometer in an opposite corner from the desiccant.

Missed a chance to paraphrase A Knight's Tale at 2:00. "His spirit is gone, but his stench remains." which could be changed to "It's usefulness is gone, but it's slime remains."

Thanks Bryan for sharing. I have been using AMS Desiccant Boxes for about 2 months and works gr8. Have not needed to recharge yet - still hovering 10% humidity inside the AMS and no issues with PLA filament breaks.

imo don't microwave them. too easy to burn the indicator dye. burnt about $5 worth of beads. bake them instead.

Hi Brian, would love to see what you could come up with trying to print "glass" with clear PETG.

I've been using the older style Bank of squarish boxes that go in the front of the ams. I like the new additional ones to go on the left and right edge. Also running cylinder-shaped canisters that go inside each spool. That comes in handy on very light spools that tend to lift out on rewind

Just a little suggestion when using the rechargeable beads. Be sure to use a stone or ceramic bowl if you microwave them. they'll melt into a plastic dish and ruin themselves and the dish.

Reusable stuff is always better not only due to reduced cost, butt also significantly reduced waste 6.6

Love your videos. I think I'm just going to store my saturated beads in a gallon jug until I get a bunch of them, then just dry them all at once. Then I can simply microwave them on a low setting in a 9x13 lass pan (stirring occasionally) until I get a nice even orange.

Wake up, Polly Dessicant!

Surrounding the hygrometer with desiccant measures the humidity of the desiccant. Your AMS did not reach 10% RH in 20 minutes. You would likely get the same result if you didn’t put the unit in the AMS.

Instant win for ex-desiccant rant <3

Great video as always. Let me offer an alternative. After experimenting with various printed containers, I ended up settling on small drawstring mesh bags. A 100-pack is under $7 on Amazon. I measured 50g of beads per bag, then triple-knotted them. They can easily slip into the front of the AMS or the center holes of the spools inside the cereal boxes I use for storage. They can also be thrown directly into my filament dryer (a jerky maker) as well. No concerns about spillage or melting. For the hygrometer visibility issue, I use a Zigbee sensor and an external display, all powered by Home Assistant. That also gives me graphs of the humidity over time, and phone notifications if the AMS or any of the cereal boxes gets too moist.

G'day Brian ol son.... i use my Sunlu S4 as a AMS system and love the machine......im not a fan of Bambu, with their Apple type of ecosystem, with a semi closed system. this vid about the basic de moisturising of the AMS and using the propriertry sylica is just one case. I use the desicant from all my filament rolls and dry as need be, im on the poorer side, being on a disability pension so i must save every cent as costs here in Australia can be expensive for all things makerspace. Cheers for your insight, From A M8 Downunder

I am blessed to live in Denver where the relative humidity indoors is regularly <20%. I very rarely have filament moisture problems. I store TPU on the shelf and never have to dry it. I only regularly dry the engineering filaments.

Also, for rejuvenating the beads, there is also a printable "screen" you can put on a Bambu reusable spool to pour the beads in and then use in any normal filament dryer (home-made from a dehydrator or consumer product). The screen also lets the small chips and bits fall out, keeping only the larger beads (and the large chunks of broken beads).

The only issue with desiccant is that even when you’re not using it it’s absorbing moisture from the air, which is why I keep it in a dry box with some desiccant

One thing to note, it may have already ben said - Using the desiccant beads in the same container using the hygrometer is in will give it a false reading. this is because the sensor in the hygrometer sits deeper in than the container, so "drier" surrounding air effects its reading. To prove this, use the system with desiccant in that box, note the reading, then empty it and put the container back and note the difference. Without the surrounding desiccant, you should see a higher reading since it is sampling "untreated" surrounding air. You will also notice a slower lowering of humidity as the overall air is dried versus the immediate nature of the just the surrounding air. - I learned this through trial and observation using 3 hygrometers in the AMS unit in different locations.

Check out the Eva-dry E-333 Mini Dehumidifier. You can plug it to dry it out. Someone needs to design an enclosure so this can fit on the AMS.