Updated R 1.2:

Lid marker were added to the to 3MF project file and step file.

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The Canister/containter files do not have the mesh on each end as part of the model. I use a modifier to remove the top and bottom layers of the print in the centers and set the infill to 25% Honeycomb infill.

I recommend printing with ABS or ASA so that the containers can be heated with the spools when drying your filament.

When filling the container only fill it to about 80% as this allow for the desicant to move around while the spool is rotating increasing the exposed surface area of the desicant.

Alumina Desiccant (diameter is ~ 3mm / 1/8in):

https://amzn.to/3vJYevY

I have tested these canisterv to also work with Polymaker cardboard spools.