Video: Creating a Hot Runner System

Learn how to define a hot runner system.

  1. Click Open Model on the Files icon and browse to the bumper.imold file in the installation directory, or drag-and-drop the file into the modeling window.


  2. On the Part Cavity icon, click Auto Configure Components.
  3. Click the surface of the inlet to automatically detect the mold part cavities and the runner system components.
    The mold part cavities are displayed in dark red and the runner system components in light red. The selected inlet has a green arrow.


  4. Double-right click to confirm the part cavity designation.
  5. Select the Hot Runner icon.
    Use the options in the microdialog to define the hot runner system.
  6. Select the Hot Runner check box. Keep the default Temperature as the hot runner system type.
  7. Select the Include Gates check box.
  8. Click the Select Valve Gates button.
  9. For each valve gate that you want to designate in your model, select the gate, then define the heat controls in the microdialog. For this tutorial, you will select and define the 4 gates outlined in green.


    1. Select a gate on the model.
    2. Select Closed as the initial state of the valve gate.
    3. Click the + Add Controller button to add a control to the valve.
    4. Choose Open and Flow Front for the control setting.
    5. Click the point icon , then click the model where you want to place the flow front control point.
      From the valve's initial closed state, the valve will open when the material flow reaches the specified point on the model.
    6. Repeat this process for the remaining gates.
  10. Double right-click to confirm the defined valve gates.
  11. Review the Process Parameters and enter a Filling time of 4 seconds. Use the defaults for the remaining parameters.
  12. Run a Fast analysis and review the simulation results.
You have completed the runner setup for this tutorial!