Principal Axes Rotation Angles

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I have a mass system that I am designing isolators for. I'm attempting to create a new coordinate system that represents the principal axes so that I can use that to identify locations and angles for the isolators. My problem is that when I compute the principal axes, then create a new coordinate system at the location and orientation of the reported principal axes, the location is correct but the rotation is slightly askew and I can't figure out why. In the picture below, I would expect my 1, 2, 3 axes and X, Y, Z to be on top of each other. I uploaded the CAD files as well.

Mass Properties Results.JPG

Principal Axes to Coordinate System.JPG

1_Principal_Axes.zip

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tbraxtonAnswer

22-Sapphire II

Have you reviewed this document yet? If not check out the process needed to get you to the target.

Article - CS33398 - After having entered 3 values in >Orientation >Selected CSYS axes for rotation about X,Y and Z when creating a CSYS1 from another CSYS0, orientation of CSYS1 seems wrong in Creo Parametric.

StephenW

23-Emerald III

I have had trouble when translating and rotating coord sys in one csys. I will break it up in to translation for a 1st csys and a 2nd csys for rotation.

Not sure if this will help you or not.

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