To create a runner system, manually

If you have a runner system modeled as a CAD body, you can extract the runners as center line curves, and avoid defining them manually.

1. Click (Geometry tab > Create panel > Nodes > Node by Coordinate), or any other node creation tool, to create the nodes that define the feed system.
   Tip: You can also create curves without the nodes.
2. Click (Geometry tab > Create panel > Curves > Create Line).
3. Enter the start coordinate of the curve or select the node that defines the start of the curve.
   Tip: Set the Filter to Node or Nearest node to ensure you select a node rather than a point in space.
4. Select Absolute or Relative depending on how you want to define the end coordinate.
5. Enter the end coordinate of the curve or select the node that defines the end of the curve.
6. Select the appropriate property from the Create as drop-down list. If the required feed system property is not in the list, click Change... and select the required property.
7. Click Apply.
8. Repeat steps 3-7 for each curve of the feed system you are creating.
   Tip: The second coordinate of the last curve created becomes the first coordinate of the next curve you are creating.
9. Duplicate the cavity and runners as necessary to reduce the entities being created manually.
10. Mesh the runners.
    Tip: If you want to place the curves and beams for the feed system on the same layer, make sure to select the Place mesh in active layer option.
11. Click (Mesh tab > Mesh Diagnostics panel > Connectivity ) to check the connectivity of the runners with the cavities.
12. Click on the element at the top of the sprue, then click Show.
13. If there are disconnected mesh elements, click (Mesh tab > Mesh Repair panel > Global Merge).
    Note: In order to avoid merging unnecessary nodes, make sure the Merge nodes along an element edge only option is not selected. After applying the tool, check to ensure only the necessary nodes were merged. if unnecessary nodes were merged, click Undo, then reduce the tolerance and try the merge again, or fix the problem manually.
14. Click (Home tab > Molding Process Setup panel > Injection Locations) and set an injection location on the top of the sprue.