Datum Axis dialog box

Axis Type

Displays construction methods you use to create datum axes:

• Inferred — Determines the best datum axis type to use based on objects you select.
• XC-Axis — Creates a fixed datum axis on the XC-axis of the Work Coordinate System (WCS).
• YC-Axis — Creates a fixed datum axis on the YC-axis of the WCS.
• ZC-Axis — Creates a fixed datum axis on the ZC-axis of the WCS.
• Point and Direction — Creates a datum axis from a specified point in a specified direction.
• Two Points — Creates a datum axis by defining two points through which the axis passes.
• On Curve Vector — Creates a datum axis tangent, normal, or binormal to a point on a curve or edge, or perpendicular or parallel to another object.
• Intersection — Creates a datum axis at the intersection of two planar faces, datum planes, or planes.
• Curve/Face Axis — Creates a datum axis on a linear curve or edge, or the axis of a cylindrical or conical face or torus.
• Fixed — Available only when editing a datum axis. Any datum axis created using YC-Axis, XC-Axis, or ZC-Axis, or any of the other relative types used with the Associative check box cleared, appear as the Fixed type during an edit.

Type-Specific Options

Inferred

• Select Object (Objects to Define axis) — Lets you select one or more objects that define the axis. The objects you select determine the axis type and which additional object types (if any) you can continue to select. Options that support the determined type appear in the dialog box.
• Alternate Solution (Orientation on Curve) — Available depending on the object(s) selected. Lets you cycle through the different possible solutions.

XC-Axis / YC-Axis / ZC-Axis

Create a fixed datum axis on the corresponding axis of the Work Coordinate System — no input parameters.

Point and Direction

• Specify Point (Through Point) — Lets you select the origin point for the datum axis. Use a point type from the list or the Point Constructor.
• Orientation (Direction) — Defines how the direction of the datum axis is determined, based on the selected point and a vector: Parallel to Vector or Perpendicular to Vector.
• Specify Vector — Lets you specify a vector to be used with the orientation setting, defining the direction of the datum axis. Select from the list or use the Vector Constructor.

On Curve Vector

• Select Curve (Curve) — Lets you select a curve or an edge on which to locate the datum axis.
• Location on Curve — Lets you specify whether the axis is located on the curve or edge at an Arc Length or a % Arc Length distance from its end. (The label of this option box changes to match the setting.) You can enter a value or drag the origin handle along the curve or edge.

Options common to all Types

Axis Orientation

Reverse Direction — Reverses the direction of the axis 180 degrees.

Settings

Associative — Makes the new datum axis associative, so it is parametrically related to its parent features. An associative datum axis displays the name Datum Axis in the Part Navigator. A non-associative datum axis displays the name Fixed Datum Axis in the Part Navigator.

Related

• Create an inferred datum axis
• Create a datum axis from a point
• Create a datum axis on a curve
• Create a datum axis on the axis of a curve or face
• Pre-NX Datum Axis

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Datum Axis dialog box, NX 2212 Series © 2023 Siemens