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Shapes Around Us (3D Architectural Net & Multi-View Camera Bot)

Source:

Build 3D geometric architectural models from flat 2D cardboard nets (Cylinder, Prism, Pyramid, Cube). A micro servo camera rig rotates around the model, projecting real-time Top, Front, and Side elevation views onto a display screen.

Categorisation

Props & Materials Required

  • •Cardboard 2D net cutouts (Cube, Triangular Prism, Square Pyramid, Cylinder)
  • •Pan-tilt mini servo motor camera mount
  • •Digital camera / USB endoscope module
  • •ESP32-CAM / micro:bit V2 controller
  • •3.5-inch TFT / LCD display screen
  • •DFPlayer Mini MP3 module + 3W speaker

Step-by-Step Instructions

1

Fold 2D Nets into 3D Shapes

Fold flat cardstock nets into a 3D house, pyramid, and prism.

2

Mount Model on Smart Stage

Place the 3D house model on the center stage platform.

3

Servo Pan-Tilt View Scan

Press 'Scan Top View' — servo arm moves camera directly above the house (displays square roof & chimney circle). Press 'Side View' — camera shifts to side wall.

4

Architectural Drawing Challenge

Draw the 2D Top View vs. Side View of the building based on live camera feeds. Speaker verifies perspective accuracy!

Why It Works & Notes

Understanding how 3D objects look from different perspectives (Top View, Front View, Side View) is a foundational architectural skill. A servo-rotated camera rig capturing real-time perspective views makes 3D projections concrete.