Also, because Fusion 360 automatically flips the gear, you use the Flip option to put the gear in the correct alignment. Notice that you can offset the final position of the gear on the shaft in all three axes and revolve around one of the axes. In the Joint dialog, specify the following values: Zoom in to the shaft and select the center point on the top to place a joint origin there. Select the center point (plus symbol) to place a joint origin on the hole for the shaft. Select the face that contains the hole of the shaft without referencing any of the individual points. Next, designate a face for the joint origin. They are automatically generated and typically found on a face or edge. These points are called implicit joint origins. Zoom in on the gear and hover over the top face.ĭifferent faces of the gear offer different points to place a joint origin. Learn more about joint origins as you join the gear to the shaft. The shaft moves to the gear housing and is joined in a revolute relationship. The Joint dialog shows this selection for Component 2. Select a point on the inner rim of the opening in the gear housing. It is the reference point for the joint on this component. The Joint dialog shows the shaft selected for Component 1.īy default, Fusion 360 offers only one point to connect to in this case, the center point of the edge.Ī small icon called the joint origin appears on the shaft. Fusion 360 automatically chooses the Z axis, but you can specify another axis if necessary. In the Joint dialog, set Motion Type to Revolute.įusion 360 enables the required degrees of freedom for the motion type. In the Model workspace, choose Assemble > Joint. In the Data Panel, open 5_Assembly Joints from Projects > Samples > Workshops & Events > Adoption Path > Mechanical Assembly > 5_Assemblies and Joints. If the Data Panel is not open, click Show Data Panel. In this step, you use the Joint command to create a Revolute joint between the shaft and body of a gear housing. Yaw rotates components around the X axis.Ĭreate a joint between the shaft and the gear housing Pitch allows components to rotate around the Z axis. A ball joint has two degrees of rotational freedom: pitch and yaw. It is useful for joining two components so they can rotate while sliding across the plane.īall. It allows two directions of translation in a plane and a single rotational direction normal to that plane. A planar joint allows three degrees of freedom. A pin slot joint also allows two degrees of freedom, but components can rotate around different axes. Components joined with a cylindrical joint always rotate around the same axis. A cylindrical joint provides two degrees of freedom: one translational and one rotational. Options are similar to revolute joint options, except that components slide along the selected axis rather than rotating around it.Ĭylindrical. It is used for components that slide along one another. A slider joint has a single translational degree of freedom. This joint can rotate around the standard X, Y, or Z axis, or around an edge in the model (a custom axis). A revolute joint has a single rotational degree of freedom, much like a hinge. A rigid joint fixes two components to one another. When you insert a joint between two components, you choose one of the following types: Each joint uses the number of degrees of freedom needed for the intended motion. This approach allows you to obtain the required degrees of freedom all at once, in one command.Ī joint allows a component to move translationally (back and forth) along the X, Y, or Z axis or to rotate around one of these axes. In contrast, with Fusion 360 you begin by limiting all degrees of freedom and then select a joint motion type that specifies degrees of freedom. With other CAD tools, you use a constraint or mate to limit one or two degrees of freedom at a time, then add constraints or mates until you have enough degrees of freedom. About joints in Fusion 360įusion 360 defines relationships between components by using joints and as-built joints, and joint movement provides degrees of freedom. In Autodesk Fusion 360, joints define the relationships between components in an assembly.
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