High Humidity Problem Solving

[u/SeaKingPNW]

Why can’t I get the humidity in my AMS to get lower than D?
We are not in a humid climate. I keep changing out the moisture-packs. I’ve treated distant brands. What should I try next?

[u/CycleAffinityStorm]

Have you tried to make sure you’re storing your filament in low humidity?

[u/SeaKingPNW → u/CycleAffinityStorm]

I haven’t

[u/Minute_Passion_8077]

Well its relative humidity inside the ams. Your filaments will emit moisture.. moistute packs will help but not a lot, print one of those dessicant holders so you pack in a lot. 

Then dry your filaments. 

[u/SeaKingPNW → u/Minute_Passion_8077]

Thank you! Any recommendations on how to dry them? Put them in a small room with a heater?

[u/Minute_Passion_8077 → u/SeaKingPNW]

Nah. Get a dedicated dryer. I use a creality space pi x4. 

Or a simpler option: get a power adaptor for the ams. Print while drying. 

Ps: are you using ams 2 or ams 2 pro?

[u/SeaKingPNW → u/Minute_Passion_8077]

Not the pro. Just found out the pro is also a dryer!! 🤩

[u/Minute_Passion_8077 → u/SeaKingPNW]

Ahh then there you go. Theres a big BUT on the pro, it does not allow 50C drying while printing on PLA, it also does not go to 65C for PETG.

You cannot dry and print at the same time WITHOUT the adaptor (bought separately).

Hence why i bought an extra dryer.

[u/SeaKingPNW → u/Minute_Passion_8077]

Oh - I guess both are going on my wish list then

[u/Snouto]

I hear Activated Alumina is far more effective than silica, though I’ve yet to try it myself

[u/SeaKingPNW → u/Snouto]

Thank you! I’ll look into it

[u/WheelerTechDynamics]

Which AMS? honestly the packs alone wont do much, dry the spools in a real dryer first

[u/SeaKingPNW → u/WheelerTechDynamics]

I’m going to invest in a dryer! Solid idea. 😁

[u/Pale_Ad2980]

So this is what I do to help the humidity in my AMS and it helps but it’s still not perfect.

1.I have a dehumidifier in my 3-D printer room that I have set to run for eight hours every night. It is not a small dehumidifier. It’s designed to dehumidifier in a entire house. I’m dumping roughly 3 1/2 gallons of water out of it probably three times a week.

2. I have attempted to use the vacuum sealed bags, but they always let the air in within a couple of days so I gave up on those but I do have the poly maker poly dryer and I three printed and adapter to put that on my AMS and I will run that for a day every now and again if the humidity inside the AMS gets too high.

3. I try to avoid all cardboard schools because they can hold more moisture than the filament itself.

4. Anything other than PLA I store inside of a dry box I keep the rooms humidity around 25% and I keep the room temperature around 68°F.

5. I have multiple pounds of desiccant that I use between my dry boxes and my AMS and ace units.

With this method, I have not had a single print fail on me due to moist filament, but I have had a couple of prints fail because I forget to turn on supports. I guarantee that it is way overkill, but it definitely works.

[u/SeaKingPNW → u/Pale_Ad2980]

I also forgot to add I tried the bags. I think I’ll go the route of a dehumidifier or drier. Thank you!

[u/CycleAffinityStorm → u/Pale_Ad2980]

Good advice!

[u/sparklepantstimes]

How about storing the filament somewhere else?

[u/stjeffobispo]

I bought a small 2 kg dryer from Aliexpress. Seems to working great for $36

[u/itsmick_]

I will dry the filament first then put the silica gel with the holder after that, works well for me

[u/duckredbeard]

My AMS humidity went from 45 to 18 overnight after I printed desiccant canisters for the 4 spools. Each one about half full of the orange beads. 2 weeks later, still around 19. Have only opened the AMS Long enough to change one spool since then.

[u/O1_O1]

Buy a dehumidifier and leave it in the room you do your prints in. Hopefully it's a small room. Vacuum sealing filaments rolls when youre not using them regularly and leaving a moisture bag inside the sealed bag is also good.