Replacing the First Moving Object of a Track Using Axis Systems

You can replace the first moving object during track authoring.

When you use the Snap Anchor command, you can select the axis systems of the old and new objects to reposition the moving object.

When you use the Snap Mechanical Ports command, you can snap two objects using axis systems published through mechanical ports. You can select the ports to be snapped in the list of available ports of the old and new objects.

This task shows you how to:

Before you begin: Open a manufacturing simulation in the 3D Simulation environment of Assembly Evaluation.
See Also
Select Objects to Move with Tracks

Use Snap Anchor to Replace the First Moving Object

You can select the axis systems of the old and new objects to replace the first moving object.

  1. Create a track to move Resource 1.



  2. Edit the track and in the Moving Objects panel select the Keep product position when first moving object is replaced option.
  3. Clear Resource 1 and select Resource 2.

    Resource 1 is detached and moved to the position it was at before track definition. Resource 2 is attached and moved according to the Automatic Anchor Positioning option setting in the Me > Preferences > Infrastructure > Trajectory Infrastructure > Trajectory tab.

    • If the option is set to Part Bounding Centre, the center of the bounding box of Resource 2 coincides with the anchor position.
    • If the option is set to Part Origin, the origin of Resource 2 coincides with the anchor position.



  4. Click Snap Anchor to reposition Resource 2.
    Note: Snap Anchor allows changing position of the moving object because the option is selected and the moving objects are modified. If moving objects are not modified, then this command is not available.
  5. Click the snap anchor.
    A temporary axis system is created at the anchor position.
  6. Select the axis system on Resource 2.

    A point, axis system, or any geometry can be selected on the object.



  7. Select the axis system on the removed object (Resource 1).
    The selected axis system is snapped to the anchor position. The selected axis systems coincide. Resource 2 is positioned as defined by the snap.



  8. Click OK to save the changes.
    The first moving object is replaced and the track is modified.

Use Snap Mechanical Ports to Replace the First Moving Object

You can snap two objects using axis systems published through mechanical ports. You can select the ports to be snapped in the list of available ports of the old and new objects.

  1. Create a track to move Resource 1.
  2. Edit the track and in the Moving Objects panel select the Keep product position when first moving object is replaced option.
  3. Clear Resource 1 and select Resource 2.

    Resource 1 is detached and moved to the position it was at before track definition. Resource 2 is attached and moved according to the Automatic Anchor Positioning option setting in the Me > Preferences > Infrastructure > Trajectory Infrastructure > Trajectory tab.

    • If the option is set to Part Bounding Centre, the center of the bounding box of Resource 2 coincides with the anchor position.
    • If the option is set to Part Origin, the origin of Resource 2 coincides with the anchor position.

  4. Click Snap Mechanical Ports to reposition Resource 2.
    A dialog box appears for selecting ports from the removed object and new object.



    Port names are prefixed by the owner product name to easily identify to which child product the port belongs to.

    By default, the ports that are first in the list are snapped: Resource 2 is positioned such that the first port in the list for Resource 2 and the first port in the list for Resource 1 coincide.

  5. Click the field for the list of ports and hover the mouse over port names.
    Resource 2 moves to a new location such that the port under the mouse coincides with the port displayed in the other list.
  6. Click a port from the list.
    Resource 2 is positioned at a new location such that the selected port coincides with the port displayed in the other list.
  7. Click the field for the list of ports and click outside without selecting any port.
    Resource 2 is positioned at a new location such that the ports that are displayed before opening the field coincide.
  8. Click OK in the dialog box.
    Resource 2 is repositioned.
    Note: If you click Cancel in dialog box, Resource 2 is positioned at the location it was at before launching Snap Mechanical Ports.
  9. Click OK to save the changes.
    The first moving object is replaced and the track is modified.