What is a fabrication drawing?
The fabrication drawing is the master control document for the printed circuit board. It should specify all critical starting and finished requirements. It should also reference any critical company or industry specifications. In the event of conflicts between the fabrication drawing and other supplied information, the fabrication drawing takes precedence. Other supplied information refers to artwork, CNC drill/rout data and company/industry specifications. Common characteristics of the fabrication drawing include the following items… • Fabrication notes. • A dimensioned mechanical detail that specifies the part size and profile specifics. • The mechanical detail should provide a drilled hole to edge dimension. • A drill detail/legend that differentiates between plated and non-plated holes. • Side details or geometric tolerances that clearly define special milling operations. • A title block that clearly defines company ownership, part identification, revision history and default toler
