Creating Motor with Hinge

In addition to adding transform keys or using puppeteering feature to a kinematic physics object to generate motors as the power for the physics structures you have created in the project, you can also use the Force function provided by the Hinge constraint to achieve the same effect.

1. Apply a prop with base part and rotating part (in this case, the chassis and the propeller of a wind turbine).
   
2. Set the propeller as a Dynamic rigid body.
3. In the Modify panel >> Physics tab >> Constraint section, click the Add Constraint button.
   
   The Add Constraint panel displays.
   
4. Drag the Hinge Constraint template onto the motor center of the propeller.
   
5. Make sure the Hinge Constraint is selected.
6. Go to the Modify >> Limit section, set the rotation limitation to Free.
7. Go to the Modify >> Force section. Activate the Activate box and then adjust the Velocity value to determine the speed of the motor.
   
8. Play back to simulate the result. You may need to adjust the force value of the Hinge Constraint in order to set the optimized rotation speed.