Welders may work from a sketch if which condition is met?

Welders can effectively work from a sketch when the weldment is relatively simple because simpler designs typically require less detail and allow for more interpretation during fabrication. In such cases, welders can rely on their experience and understanding of basic welding principles, along with their skill in interpreting straightforward shapes and connections.

A simple weldment often provides clear visual indicators of joint configurations and the intended welding process, reducing the need for elaborate dimensions or scales that may complicate the interpretation for less complex tasks. This allows a skilled welder to efficiently produce the required assemblies without getting bogged down by intricate details.

In contrast, more complex projects may demand precise measurements and detailed drawings to prevent errors and ensure that all components come together correctly, which is not necessary for simpler sketches.