Working Drawings and Title Blocks

Send the drawing type that answers the reader's job

Detail or part drawing

Defines an individual part for making and inspection, using the necessary views, dimensions, tolerances, material information, and notes. A part drawing is not the same thing as an enlarged detail view.

Assembly drawing

Shows how components relate and fit together. It may include item identification, assembly requirements, and overall or interface dimensions. See Exploded Views and Bills of Materials for exploded views, item balloons, and parts lists.

Working-drawing set

The coordinated drawings needed to make and assemble a product: typically assembly drawings and the required part drawings, with supporting lists and notes as needed. A set may span several sheets and drawing numbers.

An assembly view alone usually does not provide every requirement needed to manufacture each component. Confirm that the recipient has the required sheets and revisions.

Choose a drawing for making a part Choose a drawing for assembly

Read identity, units, and scale before reading dimensions

The title block identifies the drawing and records key information about it. Its layout varies. Read field labels; do not assume a familiar-looking border has familiar settings.

The part name tells you what the item is; the part or drawing number identifies the controlled record. Those numbers may be different. Units tell you how to interpret dimension values. Scale describes the displayed view size relative to the object, not the part's actual size. Check individual view labels for scale overrides, and use stated dimensions rather than measuring a print.

Find the units Interpret sheet scale

Find material, tolerances, and responsibility in the block or notes

General practice includes fields or notes for material, general tolerances, revision, and drawn/checked information. Some templates also carry dates, approval status, finish requirements, or a projection symbol. A material field may refer to a separate specification; read that reference rather than guessing from the appearance of the model.

A tolerance states the permitted variation from a requirement. Read the scope of the general tolerance note and any specific tolerances at features. Displaying more decimal places is not, by itself, a complete tolerance instruction. See Dimension Anatomy and Placement, Choosing Dimensions, and Hole and Feature Callouts.

Drawn and checked entries record responsibility. They do not replace the organization's approval or release process. Missing or conflicting requirements need clarification before the drawing is used.

Locate a material requirement