CAD

Identify the location in terms of distance from the origin (0,0,0) in each direction of the Cartesian coordinate system (x,y,z).

Used to locate an object by providing an angle from the x-axis and a distance from the origin (0,0,0).

Specifies a 3D location based on a radius, angle, and distance from the origin (0,0,0)

1. Ideation

2. Testing

3. Refinement

4. Production

1. Very thick

2. Thick

3. Medium

4. Thin

Continuous lines used to represent visible edges.

Dashed line that represents hidden features.

Shows the extent and direction of the dimensions.

Does not touch the object.

Continuous straight line that extends for a note, arrowhead touches the feature.

Represents an imaginary cut. Allows the inside of the object to be viewed.

Thin, long and short lines that represents the axis of symmetrical parts.

Represent alternate positions of moving parts, adjacent positions, and repeated details.

Thin, uniformly spaced lines that indicate exposed cut surfaces of an object in a sectional view.

Shows imaginary cut. Arrows located at the end, direction indicates line of sight.

1. Visible Line

2. Hidden Line

3. Cutting Line

4. Centerline

5. Phantom Line

Back, left, bottom

Front, top, right (most commonly used).

Clarifies the interior part of an object that cannot clearly be seen with hidden lines.

Scales up a portion of a view to show details.

Part of an existing drawing view, not a separate view.

Allows the ability to add a break line to a selected view.

The ability to crop an existing view at a 1:1 ratio.

Ability to display a plane parallel to an angle with true dimensions. Looks like oblique view.

Describes the solid model as combinations of basic three dimensional shapes (aka primitives).

Represents a solid as a collection of topology and geometry (surfaces, curves, and points). Uses equations.

The merger of 2 objects (A+B)

The subtraction of one object to another (A-B).

The portion common to both objects (A ∩ B)

Number of decimal places.

drawing:actual

Our reference point

Locates a vertical, horizontal, and center of hole position.

Every part has at least 3 dimensions.

A

A table of dimensions.

Specifies a 3D location from a previous direction.