Internal Spool Desiccant Packet Holder - Inland
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This is a threaded, 2 piece design for securing desiccant packets inside the hole of a spool.
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- Creative Commons — Attribution
I designed this internal desiccant holder so that my spool can make use of desiccant packets while drying in my filament dryer (a Sunlu S2). This is mostly a proof of concept, as I have yet to determine if this is effective or not, but it's worth trying.
Printing
- Filament: PETG or any other high-temperature filament.
- This largely depends on what temperatures you'll be running your dryer at.
- Infill: 20%
- Walls/Perimeters: at least 4
- Layer height: For best results, 0.20 or less
- I printed at 0.20 and needed to use some lithium grease for the threads, but your mileage may vary depending on how well calibrated your machine may be.
- Supports: None
How to Load
Insert the end with the threaded rod first into one side of the spool. The lip on the inside of the threaded-rod piece should fit snug into the hole of your spool. With the rod centered and facing upward, stuff in your packs of desiccant. Using the packets provided with my spools of filament, I was able to fit about 6 packets comfortably. Once filled, thread on the other side until tight enough that the lip fits into the hole of the spool. If you over tighten this piece, it may be difficult to remove when changing spools. If this happens, you can use a pair of small metal screwdrivers or chopsticks as a breaker bar to unscrew it.
WARNING: MAY NEED TO ADJUST DIMENSIONS
I designed this for the filament that my local Micro Center kept in stock (Inland), so you may need to adjust the proportions to better suit your filament brand of choice. I have included the .f3d file so that you can make your own adjustments.