Motion constraints are used to restrict the motion of a part in order to perform a certain operation on it. When motion constraints are applied to an object, the objects movement is restricted and any motion made by the object will not be allowed beyond the boundaries of the constraint.
Motion constraint is an Autodesk Inventor function that can be used to constrain motion in 3D models. This function is necessary for creating parts with a constrained motion such as pulleys, gear trains, and gear boxes.
Motion constraint is a feature that automatically restricts the motion of an object in a design file like Autodesk Inventor, so it can be manipulated more easily. It prevents unexpected consequences from occurring, like over-heating or over-extending parts. It also helps to achieve more efficient manufacturing and assembly processes by making the design more predictable.
Let's say you have a 3D model of a sphere, and you want to rotate it around the X axis and translate it along the Y axis. You could first create constraints to make sure that the center point of your object is at the origin position. Then, use a constraint to limit movement on both axes, so that they are always intersecting each other.
1 Select Assemble tab Relationships panel Constrain from the ribbon.
2 Select the Motion tab in the dialogue box.
3 Select Rotation or Rotation-Translation from the drop-down menu.
4 In the graphics box, select the first component.
5 In the graphics window, click on the second component.
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