Desiccant Box - Prusa Spool with Flange

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I found using my previous design (https://www.thingiverse.com/thing:3620185) that the cylinder was difficult when I was trying to put the spools back into their storage plastic bags, because it could fall all the way through.

In this version I have resolved that issue by adding a small flange to the bottom of the main body. I now slip the cylinder into the spool core and the flange rests on the top edge. Problem solved.

I now also print it in clear to make monitoring the condition of the colour change desiccant beads much easier.

Intended for 3-5mm dia desiccant - "Blue Indicating Silica Gel" - https://www.silicagel.com.au/1-kg-blue-silica-gel-beads-self-indicating/

This container is designed to be an easy fit in the spool core hole. There are slots all around to provide air contact. I also designed in a core tube into the container to allow more air contact on to the desiccant, this also serves to hold the thread to secure the lid.

With this extra hole (12 mm dia) the container could be mounted with the spool.

No photos of the printed one yet, as I am printing a batch set with will take about 20 hours.

If you'd like to see a smaller version I have already uploaded that - here: https://www.thingiverse.com/thing:3620171

If you'd like the Fusion 360 file I am happy to share it on request.

Print instructions

Print Settings

Printer Brand: Prusa

Printer: i3 MK3

Rafts: No

Supports: No

Resolution: 0.2

Infill: N/A

Filament: Prusa PETG Transparent
Notes:

Do not use supports to print this, it is not required and I find in Prusa Slicer that it still wants to support eh slots. I don't print with any support and done get any issues.

I have used PETG because this is the transparent filament that I had on hand. The material and the colour are irrelevant to the function, and are a matter of personal preference.

Print with the lid upside down so that the flat (outside) surface is on the print bed. The Main body is OK to print standing with the Flange down on the print bed.

Post-Printing

No post printing required. I like to be careful the first time I thread the two parts together and screw the cap off and on a few times to clean up the thread surfaces.
After that it works very reliably.