Herb Dryer 120mm – Honeycomb Magnetic Box

A compact, fully 3D-printed herb dryer designed around a standard 120mm PC fan. Perfect for gently drying culinary herbs, tea leaves, chilies, mushrooms, or flowers at room temperature — no heat, just airflow. The honeycomb fan grille snaps onto the main box with four neodymium magnets, so changing the fan or cleaning the box takes seconds. The perforated inner tray sits on a raised lip and provides uniform airflow across the whole drying surface. Features Snap-on magnetic fan grille (no screws) Honeycomb top grille — maximum airflow, finger-safe Perforated bottom tray for even drying Fits any standard 120mm fan (tested with Arctic F12) Two-color prints look great but not required Hardware needed 1× 120mm fan (USB, 12V adapter, or fan controller to power it) 4× neodymium magnets, 8×2 mm (press-fit + a drop of superglue in the corner pockets) Recommended print settings Material: PLA or PETG Layer height: 0.2 mm Walls: 3 perimeters Infill: 15–20% Supports: not required Orientation: print all parts flat on the bed Assembly Glue 2 magnets into the corner pockets of the box and 2 into the grille — mind the polarity so the grille snaps on in any orientation. Place the perforated tray inside the box. Load your herbs on the tray. Drop the fan onto the grille and snap the grille onto the box. Power the fan and let it run for a few hours to a day, depending on the herb. Tips Blowing air down onto the herbs (fan on top, pulling air from above) works best — dry air enters through the honeycomb, passes over the herbs, and exits through the perforated tray and side gaps. For quieter operation, run the fan at 5V instead of 12V. Scale the model in your slicer if you want to fit an 80mm or 140mm fan — the honeycomb pattern holds up fine. Enjoy, and please post a Make if you print one!