Flex adds a new actor type called Flex Rope Actor. This is based on the UE4 built-in Cable Actor, but uses Flex to enable more advanced simulation, including collision with the world, collision against other ropes, and bending constraints. To place a new rope actor, open the All Classes section in the Modes dialog and Drag & Drop a new actor into the scene:

_images/ropeactorcreate.jpg _images/ropeactor.jpg

Note: For collision between ropes to work well, there need to be enough particles spaced along the rope, preferably with some overlap between adjacent particles, so that there are no gaps. To calculate the Num Segments for the rope, you can divide the Length by the Radius on the Flex container.