Structural Drawing of Cardboard Prefabricated House

The creation of a structural drawing for a cardboard prefabricated house involves four steps: drawing, cutting, assembling, and detailing. By combining basic frame design with adjustments based on material properties, personalized structural construction can be achieved.

I. Drawing the Structure

1. Basic Frame Design: Use a ruler and pencil to draw the main frame of the house on the cardboard, marking key dimensions (e.g., length 20cm, height 15cm) to ensure reasonable structural proportions. The frame should include the outlines of walls, floor, and roof, with a triangular roof structure recommended for enhanced stability.
2. Door and Window Reservation: Mark the positions of doors and windows on the walls, including front windows, suite windows, and skylights. Clearly label the cutting lines for these openings. If designing a multi-story structure, draw each layer separately and mark the connection points.
3. Structural Reinforcement Design: Reserve areas for inserting slotted foam boards at right angles or load-bearing parts to enhance structural strength through insertion, while also providing a foundation for subsequent decoration.

II. Cutting Materials

1. Precise Cutting: Use a craft knife or paper cutter to cut along the solid lines on the cardboard, keeping the blade perpendicular to the surface to avoid rough edges that could loosen the structure. If a mistake is made, cover the incorrect lines with correction fluid and redraw.
2. Layered Processing: For the roof, tear off the top layer of the cardboard to create a slope, simulating the tilt of roof tiles, while retaining the bottom layer as support. After cutting out doors and windows, keep the frames for easy attachment or insertion of decorative materials later.

III. Assembling the Structure

1. Joining the Main Body: Use hot glue or rice glue to attach the walls, floor, and roof, aligning the edges and applying pressure to ensure a firm bond. Control the amount of hot glue to prevent overflow and contamination of the structural surface.
2. Roof Installation: Align the roof slope with the top of the walls and secure the connection points with glue. If designing a roof that can be opened, reserve a hinge or magnetic attachment at the connection.
3. Reinforcement and Decoration: Insert slotted foam boards at right angles, secure them with glue, and cover with cardboard skin for a seamless decorative effect. The foam boards can be cut into strips or blocks to simulate brick or wood grain textures.

IV. Detailing

1. Window Decoration: Cut window shapes from a lunch box lid and attach them to the reserved positions on the walls, adjusting the angle of the lid to simulate opening windows. For a translucent effect, attach transparent plastic sheets to the inside of the lid.
2. Tile Making: Cut foam lunch boxes into tile shapes and attach them layer by layer to the roof slope, creating a staggered tile pattern. Sand the edges of the tiles to enhance realism.
3. Wall Texture: Tear eggshell cardboard into small pieces and attach them to the walls with glue to simulate stone or brick textures. Distribute the textures naturally to avoid a rigid, patterned appearance.

Precautions: Keep edges neat during cutting to prevent structural loosening; wear protective gloves when using hot glue to avoid burns; adjust decoration materials flexibly, such as using colored pencils instead of acrylic paint to reduce operational difficulty.