Write a short note on: CAD-CAM integration process for 3D printing

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## Short Note: CAD-CAM Integration for 3D Printing

CAD (Computer-Aided Design) creates the digital model; CAM (Computer-Aided Manufacturing) prepares the instructions to make it. In 3D printing the two are linked through a standard digital chain.

```mermaid
flowchart LR
  A[CAD model] --> B[Export STL or 3MF]
  B --> C[Check and repair mesh]
  C --> D[CAM slicer: orientation, supports, layers, toolpath]
  D --> E[G-code]
  E --> F[3D printer]
  F --> G[Post-processing and inspection]
  G -.->|design feedback| A
```

| Stage | Activity |
|---|---|
| CAD | Parametric or solid modelling of the part |
| Conversion | Tessellation into triangles (STL) |
| Repair | Fix holes and inverted normals |
| CAM / slicing | Set orientation, supports, layer height, infill; generate toolpaths |
| G-code | Machine commands for motion, temperature, extrusion |
| Build and feedback | Print, inspect, then modify the CAD model |

### Benefits
Faster product development, less manual intervention, easy design changes, direct digital-to-physical manufacturing.

### Exam tip
Draw the CAD to G-code flow with the feedback loop.

Short Note: CAD-CAM Integration for 3D Printing

Benefits

Exam tip

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