YAFDBS - Yet Another Filament Dry Box System

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YAFDBS - Yet Another Filament Dry Box System.

There are many out there but this one is mine.

3 requirements: 

• utilize on hand materials (¾" cpvc tubing)
• require minimal hardware and fasteners
• easy to assemble

Materials:

• Cereal boxes: https://www.amazon.com/dp/B0CFLJCJSF (other similar ones will likely work but not tested)
• ¾" CPVC like: https://www.homedepot.com/p/Charlotte-Pipe-3-4-in-x-2-ft-CPVC-Water-Supply-Pipe-CTS-12007-0200R/203019298
• Desiccant like: https://www.amazon.com/dp/B013L31PQ0
• PTFE Tubing and M10 fittings: https://www.amazon.com/dp/B07PV8754Z
• (OPTIONAL) Hygrometers: https://www.amazon.com/dp/B0CXHS6CYS

2 Printed parts from “Ultimate Filament Dry Box" by @Krieger_225259 →  https://www.printables.com/model/453772-ultimate-filament-dry-box/files

• 1x M10x1 Threaded Thru Fitting 
• 1x M10x1 Threaded Nut

Tools:

• 3d printer :D
• ratcheting pipe cutter OR saw or some other means of cutting PVC/ CPVC
• 7/8" hole saw (about 22.5 mm should work) like https://www.homedepot.com/p/DIABLO-7-8-in-Bi-Metal-Hole-Saw-with-2-3-8-in-Cutting-Depth-DHS0875/301697709
  • there are likely other easy methods to make this hole, I found this to be the easiest as I already had the hole saw. You could potentially drill a smaller hole and use a drywall “jab” saw or possibly a stepped drill bit. Other tutorials use a piece of metal conduit and a blow torch. The hole saw is safer and easier than that method.

There are 4 variations of spool holder: 2 with desiccant storage and 2 without. 

Symmetric with desiccant: 

• 1x symmetric pylon - left
• 1x symmetric pylon - right 
• 1x symmetric base with desiccant box 
• 1x desiccant box lid 
   

Symmetric without desiccant: 

• 1x symmetric pylon- left
• 1x symmetric pylon- right 
• 1x symmetric base - no box 

Asymmetric with desiccant: 

• 2x asymmetric pylon 
• 1x asymmetric base with desiccant box 
• 1x desiccant box lid 
   

Asymmetric without desiccant:

• 2x asymmetric pylon
• 1x asymmetric base - no box 

Optional

• print one of these guys to hold the loose end of the PTFE tube while not in use.

Assembly

• (BOX version only) Fill the box with desiccant (you should be able to fit close to 50grams). Then slide the lid carefully into the groove. You may have to settle the desiccant granules while adding the lid.
• Press fit the 2 pylons into the base you selected. You should be able to do this by hand without too much force. Take care press evenly on both ends of each pylon, there is a chance that things could bend and break the joint. They should click into place with only a small gap at the joint
• cut a piece of the ¾" tubing to appropriate length for your containers (about 85mm for the containers I linked above). I used a pipe cutter tool (like: https://www.homedepot.com/p/Husky-2-in-Ratcheting-PVC-Cutter-16PL0805/304217599) but you can use a hack saw or a wood saw or power tools if that is what you have available. 
• make sure the tubing is short enough to fit into your chosen container.
• slide the tubing partway into one of the pylons, then add your filament spool and push the tube all the way through to the other pylon. You may have to turn the tube while pushing to get it to slide into both pylons. You may have some tube sticking out each end, just make sure that the pylons are not too tight against the spool.
• (optional) fasten your hygrometer to the inside short wall of the container, down near the bottom is probably best location. I used tape for now and will revisit if I have issues.
• pick up the spool / mount assembly by the spool and place it into your container
• (optional) if you will be using the PTFE tubing and fittings by Krieger
  • drill a hole in the lid 7/8" or approx. 22.5mm in diameter. DRILL SLOWLY. For the containers I used there was a thicker section of the lid that I drilled through. If your containers are thinner, you can put a block of scrap wood under the lid and drill into that. This will reduce the possibility of the plastic splitting.
• close the lid
• done!

When you are ready to use the filament open the lid and feed the filament throught the ptfe tube and into your printer, then close the lid.