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Line drawing sketch of a classroom communication device made of stacked cubes with messages, shown in front, exploded, and side views on a desk.

Line drawing sketch of a classroom communication device made of stacked cubes with messages, shown in front, exploded, and side views on a desk.

3D product design sketch of a classroom communication device inspired by stacked toy building cubes, placed on a student desk. The device consists of a compact base holding 3–5 interlocking cube panels, each cube representing a different student message: ā€œI need helpā€, ā€œI don’t understandā€, ā€œI have a questionā€, ā€œCan you check my workā€, ā€œFinishedā€. MAIN FEATURE Each cube is rotatable around a horizontal or vertical axis. Front cube is active, showing the message ā€œI need helpā€. Other cubes are stacked behind or beside to demonstrate rotation/flick mechanism. MECHANISM Cubes connected via a hidden axle inside the stack, allowing individual rotation Exploded view: cubes, axle, base with locking tabs VIEWS Front view: Active cube front-facing, other cubes stacked behind Side view: Cube rotation alignment and stack depth Exploded view: Cubes, axle, base SCALE + CONTEXT Pen beside device for scale Notebook on desk Cubes sized for classroom readability STYLE Clean line drawing sketch, black ink + grey shading Active cube highlighted (light color) Labels: ā€œRotating Cubeā€, ā€œAxle Mechanismā€, ā€œBaseā€ REFERENCE draw 2 cubes stacked on top of each other Ver mais