What are the best practices for creating isometric drawings in Engineering Graphics?

Here are some best practices for creating isometric drawings in Engineering Graphics:

1. Angle and Scale: Use a 30-degree angle for all vertical lines. Horizontal lines should be drawn at 30 degrees to the left and right of the vertical axis. Maintain a consistent scale throughout the drawing.
2. Hidden Lines: Use dashed lines to represent hidden edges and features. The dash-gap ratio should typically be 2:1.
3. Complex Shapes: Break down complex shapes into simpler geometric forms. Start with a basic outline and gradually add details. Use auxiliary views if necessary to clarify difficult-to-represent features.
4. Line Weights: Use thicker lines for visible edges and thinner lines for hidden edges and construction lines.
5. Dimensioning: Place dimensions outside the drawing where possible. Use extension lines that don't touch the object.
6. Consistency: Maintain consistent line styles, arrowheads, and text sizes throughout the drawing.

For efficiency, consider using CAD software with isometric drawing tools to streamline the process and ensure accuracy.