Creating a Series-Connected Chain (New for 5.1)

A constrained rigid body that targets another physics object can also be a target of other rigid bodies as well. In this situation, you are able to create chain-like rigid body groups and allow each element in the group to animate respectively according to the constraint settings that are applied to it.

In the following example, a cylinder is applied to create the power of rolling, and the chained pieces of the roller blind will pulled and roll up around the cylinder.

  1. Apply a cylinder and transform it to an appropriate shape.
  2. Set it as Kinematic rigid body. It will be controlled to produce the rolling power of the roller blind.
  3. Apply a box and transform it to a long board; move it under the cylinder.
  4. Set the board as Dynamic rigid body.
  5. Click the Constraint Settings button and apply a Hinge constraint to the object (Please refer to The Basic Workflow of Using Constraint section for more information).
  6. Switch to the Local Rotate tool, turn on the Gizmo (Shortcut: Ctrl + Q) mode. Make sure the pivot point of the board is set to the back-top of itself.

    Turn on the gizmo to make sure the rotation direction is correct. You may need to adjust the direction of the object's pivot point.

  7. In the Constraint Settings (Shortcut: Ctrl + F10) panel, click the Pick Target button and pick the cylinder so that the board is constrained to the cylinder.
  8. Set the Min and Max values of the X Axis in the Constraint Settings panel in accordance with the angle limit for the rotation of the board.
  9. Utilize the Multi-Duplicate feature to create several identical boards with identical settings.

    Each duplicated board is initially constrained with the cylinder as the target.

  10. Select the second board and change its target from the cylinder to the board right above it.

    Each duplicated board shouldn't be constrained with the cylinder as the target.

    Change the target to the board right above it.

  11. Repeat the last step for each board until its target is the one above it.
  12. Set rotation keys or puppet the cylinder to produce a rolling force.
  13. Play to simulate.

    The roller blind rolls up.