The fixed cavity is the mold cavity that does not rotate during the overmolding process.
- Using the Layers pane, Hide all other layers than the one containing the Fixed cavity mold (1).
- Click in the Model pane and press control + A to select it.
- Right-click in the Model pane and select Properties. Select Mold block (3D) and click
OK.
- Select the Overmolding Mold Component
tab, set the Component option to Stationary Component, then click
OK.

The fixed cavity(1) does not rotate during the overmolding process.