Cylindrical Desiccant Tray
grabcad
A few versions of desiccant holders which I designed for the filament box atop my printer. They are designed to fit 50mm fans and 2.5" PVC/aluminum hose/duct. One version is completely passthrough and the other terminates inside a dry-box. All interlocking pieces connect bayonet-style. The base of the inner, slotted tray is printed separately from the body and glued in place. All other parts can be printed with no supports. I've made these with all types of filaments with no problems, but I'd recommend staying away from anything brittle like PLA. I like to use clear PETG as it allows for a good view inside as the silica becomes saturated and changes color.
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