You can still utilize Contact Sets in other scenarios where the Tangent Relationship feature does not work. Keep in mind the feature requires a non-planar surface to retain tangency. The Tangent Relationship feature is easier to set up compared to Contact Sets, and also performs significantly better. Notice how the model is fully functional and produces a realistic animation. Once complete, we can animate the model from any of our Joints. We’ll need to apply four Tangent Relationships to make this model fully functional. In this case, each circle and dowel will need a single Tangent Relationship. Select the two faces you want to retain a tangent relationship. With no Contact Sets in our design, we can use Tangent Relationship. Everything should work except the points that come in contact with one another. Test your design to ensure that all necessary joints are applied. Lastly, a Revolute Joint has been applied to the axle, allowing us to spin the handle around. Rigid Joints are applied to all parts that touch, including the circles and the axle, the four designs and the dowels, and parts of the outer frame. You’ll want to set the appropriate joints to each component in your model, ensuring that each part will move according to the desired results.įor example, Slider Joints allow each dowel to move vertically. The Tangent Relationship should always be the last parametric feature in your design after the rest of your Joints are applied. Tangent Relationship will allow us to create a relationship between the faces of two bodies that continue to touch. We can now use the Tangent Relationship feature, located in the Assemble dropdown list. They also don’t typically work well when animating Joints to watch the entire model function. In this case, I have four slider joints that allow the Dowells to move up and down.Įven with the Rest position applied, you’ll find that Contact sets are not as fluid as we’d like them to be.Ĭontact Sets are often a cause for slow performance, and in some cases, they crash Fusion 360. The original way to solve this problem was to set the Rest position for the Joint. However, we don’t end up with a realistic result because this does not consider gravity. Upon testing, the dowel moves up when the circle makes contact. For this Automata design, we’d need to create Contact Sets for all four dowels and their respective circle. We can set contact sets between two or more bodies or components. Let’s first look at some of the issues with Contact Sets, so it’s clear why the new workflow is better. In short, Contact Sets allow you to set up parts to only move when they come into contact with one another. In this lesson, we’ll dive into a new way to make parts function, replacing the clunky use of Contact Sets.īefore the January 2022 update, the only option was to use Contact Sets. Can you guess the number of joints required to make this Automata toy function?
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