DOES NOT PERMANENTLY ALTER TOTE
Semi-permanently alters 1 lid if you want to print out of dry box. 

A little different take on the 20 qt Sterilite filament dry box. I repurposed a 1" (.095") plastic pipe from one of my kids' toys and the 4mm PTFE tubes that come with the bambulab X1-carbon combo to make this "AMS". It will likely work with any 1" pipe(the smoother the better). If someone supplies the measurements I can adjust my model to fit ANY size pipe/tube you may have .

The filament will feed out of these boxes as long as you are feeding off of one of the middle rolls(it works on the end position but I wouldn't recomend it). The model uses the already existing lip of the tote and tension from the appropriate length of pipe to make a very secure "rack". 

-Cut pipe approximately 321mm(12 5/8")

-Drill 4.3mm (5/16ths") hole centered and in the proper location to allow totes to maintain stacking function. (see pic)

-Insert 4mm PTFE tube into lid and glue/seal. Make sure to leave about 127mm (5") of PTFE tube protruding into tote.

You really only need one "printing lid" so if you just wanted to modify a single lid with 4 holes then you could print from all locations with ease and just swap lids to print. So far I've fed TPU,PLA,PC and PLA_CF successfully. It is currently holding the same humidity as my AMS (10%) I just poured desiccant beads loosely into the bottom for now, but am currently working on a trap. 

-UPDATE only print revised attachments if you plan to use my desiccant trap. As I had to adjust the profile to accommodate the bead trap. The desiccant trap design is complete it does have a few bugs to work out, but it is functional just needs some tuning on the print profile. You can see results in photos. It is a long print with support but the capacity of the beads is worth it in my opinion. It also gets the beads and the sensor up at the top of the box where the moist air should be while maintaining zero mods to the tote. I haven't finished the lid that will house the hygrometer so I have just been setting it in there for now and am having no problems maintaining 10% humidity. I will get around to designing the lid and C clips w/washers in the next week or so. I haven't needed them yet as the two sides click together very positively.

Printed the full circle pipe mount WITH support. Half circle version prints fine without. Pipe supports are printed out of PLA and the tube caps and couplers were printed with TPU. 75g of material to print both pipe supports. 
*new supports only use 65g of material

edit- The Elmers glue did not hold up. I am trying hot glue at the moment because I'm too impatient for silcone:) it seems to be holding up just fine and can easily be removed if I need to repurpose the PTFE tubing or tote, later down the road.****

filament storage dry box

drybox attachments v3_PLA_59m3s.3mf

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filament storage dry box