10-11-11 Vocabulary

Cavalier oblique: An oblique drawing in which the depth axis lines are drawn at full scale (full size).

10-12-11 Vocabulary

Centerlines: Thin lines made up of long and short dashes with spaces in between, used to indicate centers of symmetrical objects.

10-13-11 Vocabulary

Chain dimensioning: Placing several dimensions in a straight line along an object to describe successive features.

10-14-11 Vocabulary

Chamfer: An angled cut made to remove the "corner" of two perpendicular surfaces.

10-17-11 Vocabulary

Circumference: The perimeter of a circle.

10-18-11 Vocabulary

Circumscribe: To draw one geometric figure around another figure.

10-19-11 Vocabulary

Clearance: The distance by which one part clears another part.

10-20-11 Vocabulary

Compass: A drafting instrument used to draw circles and arcs.

10-21-11 Vocabulary

Concave surface: A curved depression in the surface of an object.

10-24-11 Vocabulary

Concentric: Having a common center.

10-25-11 Vocabulary

Conical: Having a shape with a circular base and sides converging to a single point.

10-26-11 Vocabulary

Construction lines: Very light lines used as guides for positioning objects on drawings.

10-27-11 Vocabulary

Conventional: Not original; customary, or traditional.

10-28-11 Vocabulary

Clockwise: From left to right in a circular motion. The direction clock hands move.

10-31-11 Vocabulary

Coordinates: The positions or locations of points on the X, Y, and Z planes.

11-01-11 Vocabulary

Core: A body of sand or other material that is formed to a desired shape and placed in a mold to produce a cavity or opening in a casting.

11-02-11 Vocabulary

Counterbore: A deep recess at the end of a smaller hole used to provide a bearing surface for the head of a bolt or nut.

11-03-11 Vocabulary

Counterclockwise: From right to left in a circular motion.

11-04-11 Vocabulary

Countersink: A chamfered recess at the end of a smaller hole used to receive the head of a fastener.

11-07-11 Vocabulary

Cutting-plane lines: Heavy, dashed lines used to show sectional views.

11-08-11 Vocabulary

Cylinder: A geometric figure with a uniform circular cross-section through its entire length.

11-09-11 Vocabulary

Datum: An exact point, axis, plane, or surface from which features of a part are located.

11-10-11 Vocabulary

Design: A plan for the simple and direct solution to a technical problem.

11-11-11 Vocabulary

Detail drawing: A type of working drawing that includes one or more views of a product, with dimensions and other pertinent information required to make the part.

11-14-11 Vocabulary

Detailed representation: A screw thread representation in which the threads are drawn to look like the actual threads.

11-15-11 Vocabulary

Diagonal: A line connecting the opposite corners of a figure.

11-16-11 Vocabulary

Diameter: The distance from one side of a circle to the other, running directly through the circle's center.

11-17-11 Vocabulary

Diazo process: A reproduction method for making direct positive prints consisting of dark lines on a white background.

11-18-11 Vocabulary

Die: A tool used to cut external threads. Also, a tool used to shape materials.

11-21-11 Vocabulary

Die casting: A method of casting metal under pressure by injecting it into the metal dies of a die casting machine.

11-22-11 Vocabulary

Digitizing tablet: A CAD input device on which a puck is maneuvered to select commands and position the on-screen cursor.

11-28-11 Vocabulary

Dimension lines: Thin lines normally drawn between two extension lines, with arrows or ticks at the ends and a dimension at the center.

11-29-11 Vocabulary

Dimensions: Lettering or text on a drawing defining object sizes and locations.

11-30-11 Vocabulary

Dividers: A drafting instrument used to —divide and transfer measurements.

12-01-11 Vocabulary

Drafter: A designer who uses manual or CAD methods to make working drawings and detail drawings.

12-02-11 Vocabulary

Drafting film: Translucent drafting paper made from acetate, mylar, or polyester, used for work requiring great print stability.

12-05-11 Vocabulary

Drafting machine: A device that combines the functions of the T-square and triangles, used to draw straight and inclined lines.

12-06-11 Vocabulary

Drafting media: Materials used for creating drawings, such as paper, tracing vellum, and drafting film.

12-07-11 Vocabulary

Drawing board: A smooth, flat surface on which drafters create drawings. A vinyl cover is commonly used to protect the surface.

12-08-11 Vocabulary

Drawing ink: A dense, black, waterproof ink used for inking drawings.

12-09-11 Vocabulary

Drilling: Cutting round holes by use of a cutting tool called a drill.

12-12-11 - ABBREVIATIONS

YD - YARD

12-13-11 - ABBREVIATIONS

WI – WROUGHT IRON

12-14-11 - ABBREVIATIONS

WDF - WOODRUFF

12-15-11 - ABBREVIATIONS

W - WATT

12-16-11 - ABBREVIATIONS

WASH. - WAHSER