The Rotate tool enables you to change the orientation of entities to align with the coordinate system. Model orientation is important for creating an effective runner system and for calculating the clamp force.
When you create a runner system, the sprue will be created along the Z-axis, which should be perpendicular to the machine plate with the injection side originating from the fixed plate. This ensures the sprue is modeled correctly. The clamp force is calculated relative to the machine plate.