Strategy Parameters

This describes the Sequential Turning 1. Data window that stores: Rank, Status Type, Name, Tool Compensation, Feed Rate, Spindle Speed.

Right-click on any motion in the dialog box section to access the context menu.

• Column Order: Allows you to change the header column order with Up and Down commands.
• Column Filter: Allows you to filter the header columns.
• Properties: Allows you to modify the selected motion.
• Delete: Removes the selected motion.
• Cut: Cut the selected motion.
• Copy: Copy the selected motion.

1. Geometry tab

   First/Second Check Modes

   The tool is positioned with respect to each check element depending on the To, On, and Past mode:

   • To: The position of the tool nose is tangent to the near side of the selected element with a possible offset.
   • On: The position of the tool nose is on the selected element, with a possible axial or radial offset since normal offset, collision avoidance, and safety angles are not applicable.
   • Past: The position of the tool nose is tangent to the far side of the selected element with a possible offset.

   Check Element

   The first check element is point, line, curve, or edge type elements. If it is a point, no second check element is selected. Otherwise, the second check element is line, curve, or edge type elements. When only one check element is selected, the tool is projected onto the check element. When two check elements are selected, the tool is positioned with respect to the two check elements.

   First/Second Check Limit

   • Extended: When check limit mode is set to Extended, a virtual tangent element is added to each extremity of the check element before it is actually taken into account as a check element. Therefore, if there is no intersection between the drive and check elements, the final tool position may be located at the intersection of the drive curve and a tangent of the check element.
   • Actual: When check limit mode is set to Actual, no virtual tangent element is added. Therefore, the final tool position is located on the check element.

   Furthermore, control over geometric extrapolation is not controlled in the Follow motion but on the preceding motion that positions the tool on the drive element. Collision avoidance is taken into account for positioning in On mode, and that left and right safety angles are only considered in collision avoidance mode.

   Reference Point

   For the first Go motion of an operation, you can define a chosen direction of motion by means of a reference point. This reference point is used in determining the exact tool position considering the check modes, offsets, and so on.

   Reference Point in the First Go Motion of the Operation: The tool positioning for the first motion of a Sequential Turning operation with respect to To, On, and Past mode is specified according to a reference point. This point is derived from the previous operation or is selected using the Reference Point symbol in the dialog box.

   Reference point definition is optional. If a reference point is not defined, the tool is positioned by default with respect to the check elements depending on the To, On, and Past mode setting.

   Click point symbol in the Geometry tab of the dialog box and then select the required point or right-click the symbol to display the following context menu commands:

   • Select: Pick a point as a reference from the work area.
   • Initialise from Previous: Automatically take a reference point that has been initialized from the previous machining operation or tool change. If the current Sequential Turning Operation immediately follows a tool change, then Initialise from Previous takes the tool change point as reference point. Otherwise it is the last point of the previous Machining Operation (which is the end point of the retract motion, if a retract motion is present on the previous Machining Operation ).
   • Analyze: Visualize the reference point in the work area.
   • Remove: Reject the previous selection and make a new selection.

   To illustrate reference point behavior, the figures below have identical check modes on both check elements. The only difference is the position of the reference point. Notice how a change in reference point affects the tool position.

   1 is 1st Check Element

   2 is 2nd Check Element

   3 is Reference Point

   The configuration is First check mode - TO, Second check mode - PAST

   
   
   

   With a new reference point position:

   
   
   

   Note: For reference points positioned on an intersection of check elements, use the ON mode to generate the toolpath. Otherwise, the toolpath is not correctly generated.

   Offsets

   Specifies axial, radial, and normal offsets with respect to each check element.

   Note: The positioning mode (To, On, Past) and offsets are not applicable when the tool is positioned on a point.

2. Strategy tab

   Feedrate mode

   Specifies feedrate mode as:

   • Machining
   • Lead-In
   • Lift-Off
   • RAPID
   • Other value
   • Air cutting feedrate

   Local Feedrate

   Specifies local feedrate only when feedrate mode is Other value.

   Local spindle mode

   Specifies spindle speed.

   Collision avoidance for Check/Drive

   Collision avoidance for each check element when the tool is positioned in To or Past mode.

   Left and right safety angles

   Specifies left and right safety angles.

   Available when Collision avoidance for Check check box is selected.

   Machining tolerance

   Specifies machining tolerance.

   Tool compensation

   Specifies tool compensation.

1. Geometry tab

   Delta check mode

   The following options are available when right-clicking in the Delta check mode:

   • Distance between two points: Select two points in the work area.
   • Line and distance: Select line and distance in the work area.
   • Angle and distance: Select angle and distance in the work area.
   • Axial and radial: Select axial and radial offsets in the work area.

2. Strategy tab

   The following options are available:

   • Feedrate and spindle speed
   • Machining tolerance
   • Tool compensation

1. Geometry tab

   Check Mode

   Specifies check mode as:

   • To: The position of the tool nose is tangent to the near side of the selected element with a possible offset.
   • On: The position of the tool nose is on the selected element, with a possible axial or radial offset since normal offset, collision avoidance, and safety angles are not applicable.
   • Past: The position of the tool nose is tangent to the far side of the selected element with a possible offset.

   Drive Element Type

   Specifies drive element type as Line or Angle. Also specifies Angle of drive, if drive element type is Angle.

   Drive Direction

   Specifies drive direction as Same or Inverted.

   Check Limit

   Specifies check limit as Extended or Actual.

   Offset

   Specifies axial, radial, and normal offsets with respect to the check element.

2. Strategy tab: The following options are available:
   • Feedrate and spindle speed
   • Collision avoidance when the tool is positioned in To or Past mode.
   • Left and right safety angles: Available when Collision avoidance for Check check box is selected.
   • Machining tolerance
   • Tool compensation
   • Guiding Point, if you use a square or grooving insert.

1. Geometry tab:

   The drive element is a curve on which a preceding motion positions the tool Therefore, the preceding motion must be a Go, Go InDirv, or Follow motion. A Go to a point or a Go Delta cannot precede a Follow motion.

   Drive direction

   Specifies Same or Inverted.

   This is useful in the particular case when two positions are reachable.

   Offset

   Specifies axial, radial, and normal offsets with respect to the check element.

   Control over Geometric Extrapolation of Check Limit

   If the preceding motion is a Go motion, the first selected check curve is used as drive curve for the Follow motion.

   If the preceding motion is a Go InDirv motion, the selected check curve is used as drive curve for the Follow motion.

   If the preceding motion is a Follow motion, the check element of the preceding Follow motion is used as drive curve. This occurs when this check element is not a point and the Change Drive option of the preceding Follow motion is set. Otherwise, both consecutive Follow motions share the same drive curve.

   Notes:

   • The offsets applied to follow the drive element are also based on the same preceding motion. When the drive and check curves are tangent, any offset values on the check curve must be the same on the tangent drive curve.
   • The collision avoidance and the control over geometry extrapolation on drive curve are also based on the same preceding motion.

   Check mode

   The tool follows the drive element up to the check element. The final tool position is determined by the To, On, and Past mode.

   • To: Tool nose tangent to the drive element and before the check element with a possible offset.
   • On: Tool nose tangent to the drive element and on the check element, with a possible axial or radial offset since normal offset is not applicable.
   • Past: Tool nose tangent to the drive element and after the check element with a possible offset.

2. Strategy tab: The following options are available:
   • Feedrate and spindle speed
   • Collision avoidance for Check.
   • Left and right safety angles: Available when Collision avoidance for Check check box is selected.
   • Machining tolerance
   • Tool compensation
   • Guiding Point, if you use a square or grooving insert.

• If the motion is the first in the sequence, the tool moves from the last point defined in the previous operation, to the point defined in the GoTo Point motion.
• In other cases, the tool moves from the last point defined in the previous motions, to the point defined in the GoTo Point motion.

Offset

Specifies axial and radial offsets with respect to the check element.