Silica Gel Dryer Spool

While messing with my silica gel to get it restored I realized that I had a dryer source sitting right next to my printers.  I went looking for a model that would allow me to use my single spool filament dryer to restore my silica gel and was unable to find anything that fit my needs.  I took to OnShape and did my best to model up an object the approximate size and shape of a filament spool.  Because I'm still really new to CAD I couldn't figure out an easy way to punch a bunch of holes through the object to allow good airflow that wouldn't let silica gel come streaming out so I ended up settling on using the “0 top and bottom layers” trick to let the infill do the job for me.  The final project came out really nice.  As always, I've included the step files so you can modify it appropriately to fit your situation.

Print Settings
PLA (PETG or ABS may work better depending on how hot you run your dryer)
0.2mm layer height
6 Wall Loops
0 Top Surface
0 Bottom Surface

The 3MF I included has the correct orientation and settings already applied so use it for reference.

Usage
After printing simply fill the container section with silica gel then snap the lid into place.  As long as your dimensional accuracy is good you should be able to press fit the lid without issues.  It maybe require a little finagling to remove it as I haven't figured out a good way to put any sort of handle on it, yet.  Then simply place the spool in your filament dryer as normal. I have set mine to PLA temps to start (Eibos Easdry) for testing but you could probably go higher.

Note
I'm testing this for the first time as I submit this so I'll provide any updates based on how well it works.

Update
I came back after 4 or 5 days at around 65C to find that my PLA printed version of this had warped in the filament dryer.   I was afraid this might be an issue.  I'm going to print a version in ASA to see if it works better but going forward you might want to use PETG or ASA and/or lower temperatures in your dryer.

Update 2:
I've updated the models a bit to add some chamfers and make the center hole a bit bigger.  I also made the walls a little thicker, as well.  I'm testing another PLA print with the lowest temperature my filament dryer will go to see if it holds up.   Look for the V2 models for download.

Update 3:
I've tested the new model at ~60C for 3 days and it held up with no issues.