Embedded Files
The Cereal killer was made with laser-cut Duron for the base and the housing material, while the dispensing mechanism was made with 3D-printed PETG. The front panel for the housing had the necessary holes for the button, an LCD screen, and the potentiometer that served as a dial for the amount of cereal dispensed.
Assembly Notes
The box is made out of laser-cut Duron panels. It was designed to be a perfect press fit and enable easy assembly without any fasteners. However, to improve the ease of operation of removing the back panel to service electronics, the press fits were supplemented with adhesives.
Material Selection
Materials were primarily chosen to create a cost-effective and easy-to-assemble cereal dispenser, using Duron sheets for the box and some embellishments, PTEG filament for the printed dial button, dispenser, and ear model. Many of these were then spray-painted to improve aesthetics.
Cosmetic Additions
Cosmetic Additions
To make the cereal killer more fun and engaging stickers as well as a fake ear model were added to attract more people to the project during the showcase. Beads were used instead of real cereal
Dispensing Mechanism
Dispensing Mechanism
The anti-jam spinner is connected with the rotating wheel, which is driven by a servo motor. The spinner pushes the cereal in the cone funnel into the bowl funnel cavity. This action is also aided by the sloped geometry of the bowl funnel. The cereal falls into one of the four sections of the rotating wheel. As the rotating wheel rotates, the section aligns with the sloped cavity of the base, creating a channel for the cereal to be dispensed. The guide helps guide the falling cereal into the bowl placed underneath.
Hopper removed for viewing clarity
Top View showing four sections (hopper removed)
3D printed Mechanism
PXL_20231204_235936549.TS~2.mp4Video showing the dispensing mechanism
Overall Size
Overall Size
Link to CAD documents CAD Documents
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