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EdwardAnderson1-Visitor
1-Visitor
January 18, 2010
Question

How to model sliding pivot

Trying to model a joint. I have a kicking leg part, that has a slot cut down the middle. The slot engages a fixed post, so that the leg can both slide up and down on the post, and rotate about it. We have not been able to correctly constrain the model to be able to animate it to demonstrate that the design is sound. I'd appreciate any help in figuring out what kind of constraints to use, and how to use them.
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6 replies

DavidButz1-Visitor
1-Visitor
January 18, 2010
Quick answer is: use the Insert constraint, BUT maybe you have some other problem. Are you just using the Drag packaged components icon, or are you using so-called Connections and a Mechanica type simulation? If the former, it may be that there are some assumed default planar alignments or the like, that you are not aware of, which are not allowing the simultaneous slide-and-rotate action you are looking for. Hard to know exactly what the problem is without more information.
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HatimAbdul1-Visitor
1-Visitor
January 18, 2010
Edward, Sound like it's mechanism connections what you're looking for. Can you attach a picture of the slot and the post?
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EdwardAnderson1-VisitorAuthor
1-Visitor
January 18, 2010
I'm attaching a .zip that one of my CAD sub-team members created. He's been working on the problem, so I'm not sure what state it's in.
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