Hidden line

What is a hidden line?

A hidden line is a special type of line used in technical drawings to represent invisible shapes and contours. These lines are used when there is a need to show parts of an object that are not directly visible from a certain viewing angle. Examples include hidden holes, internal structures, or other details that are important to note during manufacturing or assembly.

The significance of dashed lines in technical drawings

In technical drawings, dashed lines are essential because they make it easier to read precise plans of shapes and structures. They allow designers, engineers, and machinists to see a clear depiction of hidden forms without needing extra space on the drawing or making section views. This makes dashed lines a space-saving and clearly informative element in technical drawings.

• Representing invisible lines: hidden lines help to show hidden lines and shapes that would otherwise not be visible.
• Professional standard: They are part of professional standards and are widely used in various industries, especially in mechanical engineering and design.
• Easy interpretation: hidden lines make drawings easy to interpret and ensure that everyone involved in the design process understands the structure in the same way.

Technical details of a dashed line

In technical drawings, the dashed line has its own distinct technical characteristics. The most common line width for a dashed line is 0.35 mm, ensuring it is distinguishable and clear in the drawings.

Line width standards: The 0.35 mm line width is most commonly used, which ensures consistency and accuracy in technical drawings.

Line rhythm: The dashed line consists of short lines and spaces, which make it clearly stand out from solid lines used for visible outlines.

Summary

The hidden line is an essential part of technical drawings, as it makes it possible to depict invisible shapes and contours in working drawings. This is important to ensure that everyone involved in the design fully understands the structure. The typical line width for a dashed line in technical drawings is 0.35 mm, which provides clarity and consistency in the drawings. Dashed lines facilitate the manufacturing and assembly of parts by providing accurate and reliable drawings.