Here's a desiccant tray I use in the bottom of all of my 20qt Sterilite dryboxes. I pour desiccant in them and they sit under all of my rolls of filament. I like having it open so I can easily see the color of the desiccant to know if I need to dry them. The shape is designed specifically so I can just transfer it straight over to my cheap Commercial Chef food dehydrator and throw it into one of the trays there. With my tray extensions, I can dry a whole drybox at once … 4 rolls of filament and the tray of desiccant.
If you use a different nozzle size or a different infill pattern, you'll have to play around with the infill percentage. It took several tests before I found that 42% was just small enough that the broken desiccant pieces wouldn't fall through, but left plenty of room for the air to go through.
The .3mf I've included has the settings exactly as I print it on my MK4. They are:
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The author marked this model as their own original creation.