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Dimensions & Tolerances - Coggle Diagram

- - - - Use ⌀ for full circles and holes.
        
        Use R for arcs and rounded features.
        
        Show quantity and pattern if features repeat.
        
        Always ensure clarity and avoid clutter.
  - - - Critical dimensions are measured from a datum to reduce cumulative errors.
      - Non-critical features are dimensioned using the chain method for simplicity.
      - Helps maintain accuracy where needed while keeping the drawing clear and efficient
  - - - The radius is marked using the letter "R" followed by the numerical value (e.g., R10).
      - It applies to curves that do not form a complete circle (less than 360°).
      - Used for features like rounded corners, grooves, arcs, or partial circles.
      - A leader line with an arrow is drawn from the arc to the radius dimension.