The Geometric groups concerns with shape, size, relative position of solids, and the properties of 3D space. To create a joint between two solids, you must choose the type of joint from the Joints group then the Joint Properties Panel will appear on the left-side.
considers questions of relative position or spatial relationship of geometric figures and shapes.
Geometric group is located on the Links menu. You find two button in this toolbar, as shown in the following image. A brief description of this button is given as follows:
Distance : creates a link between two solids based on maintaining a certain distance between them at all times during the simulation.
path: specify a path in the scene for the solid to follow during the simulation
