Single Roll Filament Drybox

thingiverse

https://youtu.be/YriatQOJfEI **Parts Required** (1) 4 inch 5/16 bolt (or 8mm threaded rod) - purchased through a local hardware store (2) 5/16 nuts (or 8mm nuts for threaded rod) - bought from a hardware store (1) PFTE Tube Cap (downloaded in files) (2) Rod End Holders (downloaded in files) (2) 8mm x 22mm x 7mm Bearings - http://amzn.to/2G9QKUU (2) Spool Plugs - https://www.thingiverse.com/thing:2773587 (1) Cereal Dry Box - http://amzn.to/2toGOnq (1) PC4 M6 PFTE fitting - http://amzn.to/2oZLieN (1) O-ring if your fitting does not come with one (bought from a hardware store) (1) Cup of Orange Indicating Silica Gel Beads Desiccant - http://amzn.to/2oUmdCL (#) Any length you prefer of 4mm od/2mm id PFTE tube - http://amzn.to/2oZLieN **Step 1: Prepare the Bolt** Measure the bolt to the width of where you placed the Rod End Holders inside the Cereal Dry Box and cut off the head of the bolt and any extra length. **Step 2: Determine Spool Placement** Measure where you want to place the Rod End Holders inside the Cereal Dry Box, ensuring that the spool has enough room from the top so that you can close the dry box, and far enough away from the ends so that the spools don't rub. **Step 3: Glue Rod End Holders** Depending on what kind of glue you're using, scuff up the inside plastic to ensure a good hold. Then, glue the Rod End Holders inside the Cereal Dry Box. **Step 4: Assemble Spool** Assemble the Spool with spool plugs, bearings, threaded rod made from the bolt, and 2 nuts to hold it in place on the spool. **Step 5: Add Desiccant** Pour 1 cup of Orange Indicating Silica Gel Beads Desiccant into the Cereal Dry Box. **Step 6: Insert Spool** Slide the spool into the Cereal dry box, pushing the sides out a bit to place the ends of the threaded rods into the Rod End Holders that you glued inside the box. **Step 7: Prepare Filament Exit** Decide where you want the filament to come out of the box and drill a 5.5mm hole, deburring it for a better seal. Then, add an o-ring to the PC4 M6 fitting and screw the fitting into the hole. **Step 8: Connect PFTE Tube** Push and lock the PFTE tube into the fitting, then thread the filament end through the PFTE tube. Place the PFTE Tube Cap on the end of the PFTE tube. **Step 9: Secure Lid** Secure the lid of the Cereal Dry Box. **Conclusion** I'm still not completely satisfied with this box, but it's what I've come up with for now. My main complaints about dry boxes are that there isn't a way to re-roll the filament without opening the drybox and introducing more humidity, and there isn't a way to put the filament back through the tube when you go to use it again without opening the dry box... (again introducing more humidity). I'm trying to come up with a way to have the rod that holds the spool come out one side with a crank on it, but I've encountered several obstacles and haven't found solutions that I'm happy with yet.