Recently, we posted some tips on top-down modeling and skeleton models. Today, we’ll take a closer look at motion skeletons. (Am I the first to notice that this would be a wicked cool name for a death metal band?)
Fortunately, you don’t have to glue cornflakes to your face to rock motion skeletons.
Motion skeletons are used as a design framework for mechanized assemblies. Parts are attached to body skeletons and assume their motion definition.
Image: This elliptical machine is a great example of a motion skeleton model. With PTC Creo Parametric, you canquickly bring an initial design skeleton to life by simulating the assembly’s motion.
Motion skeleton models are subassemblies that contain design skeletons (standard skeletons or internal sketches) and body skeletons. You create standard skeletons using curves, surfaces, and datum features. They can also include solid geometry.
Before you create your motion skeleton, you need to create geometry for the skeleton. To do this, you create geometry references and design the mechanism and the body skeleton—simply sketching several connected curves can be enough.
Image: This model shows the mechanism and body skeleton (the thin blue lines/circle).
After you create your design skeleton’s geometry references, follow these steps to create a motion skeleton model:
From there, you can add geometry and parts to your skeleton model.
To learn more about motion skeletons, register for free Learning Exchange credentials, and then log in and watch this video.
You can also check out the PTC Creo Help Center page About Motion Skeleton Models.
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