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ENPL

3D Scanner DIY

Build a 3D scanning system using cameras, structured light, or photogrammetry to digitize objects

intellectualdigitalcrafty$$ mediuma weekenddifficulty 3/5

Create a 3D digital model of real-world objects using DIY scanning methods. Structured light (projector + camera) is beginner-friendly; photogrammetry uses multiple photos to reconstruct 3D geometry. Learn computer vision, calibration, mesh processing, and 3D software. Your scanner can digitize anything from small toys to larger objects—useful for archiving, 3D printing, or digital art.

How to start

  1. 1
    Choose a scanning method: structured light, photogrammetry, or Kinect-based
  2. 2
    Set up cameras, projectors, or gather photos
  3. 3
    Calibrate your scanning system (intrinsic/extrinsic parameters)
  4. 4
    Scan a test object and capture data
  5. 5
    Process the scan data into a 3D mesh
  6. 6
    Clean up mesh artifacts and export for 3D printing or viewing

What you'll need

  • Cameras/Webcams
    Essential
    ~$30
  • Projector (for structured light)
    Nice to have
    ~$100
  • USB 3D Scanner (alternative)
    Nice to have
    ~$200
  • Turntable/Rotation Mount
    Nice to have
    ~$30
  • Lighting Setup
    Nice to have
    ~$20
  • Computer for Processing
    Nice to have
    Free

Where to learn more

Plot twists

Ways to spice this up when the basics get boring.

  • Build a high-speed industrial scanner
  • Create a structure-light-based reverse-engineering system
  • Implement AI-assisted mesh reconstruction
  • Build a scanner for archaeological artifact documentation
  • Create a full-room 3D environment mapper
ADHD notes

Visual results are immediate (see 3D model appear), which is engaging. Post-processing mesh is tedious—break it into chunks or take breaks.

Fun fact

Medieval archaeology now routinely uses 3D scanning to document artifacts—what was once NASA-grade technology is now accessible to hobbyists.

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