Thoughts on COG & Momnets of Inertia /Calculate Inertia moment relative to UCS

[marshallw]

Would like to be able to do more with COG and calculated Moments Of Inertia (see attached image). For example, what is MOI of the pictured object if it is to be attached to a shaft by the slot in the end of the "handle", then rotated? As it stands, there is no way to allow Inventor do the math for this.

Also, what if I want to drill a hole at the "green" COG axis so I can create an object that can be physically spun around this existing COG axis? As it stands, these axes/planes/COG point cannot be selected by the "Work Features" functions. Axes/Planes/Points must be measured from existing 0,0,0 & the Work Features must be manually positioned based in the measurement results. If the user does not remember to select "All Decimals" as the measurement precision factor, the manually placed COG could be off.

[Oltra]

Need to change the coordinete system instead of creating a new UCS.

In order to get inertia properties refered to XYZ axis. Or better than that, abiliy to set Inertia axis in the iProperties Physical Properties.

[inv.ideareview]

Thanks for sharing your Idea. We use this forum to guide product development and help users in the best way we can based on voting. We occasionally merge Ideas or archive old ones to keep the forum working properly - it ensures there is room for people to review new Ideas and that the most relevant and meaningful ones can gain votes. We’re archiving this Idea because it's been on the board for well over a year and hasn't received many votes from the community. If you want to raise it again and try to gain more support, you're welcome to do so. We’ve found that pictures and mock-ups can help get concepts across and win more votes from other users. If you have questions or see a connection between this Idea and others, let us know. - Inventor product team (Inv.idea review)

[GeorgK]

There should be a possibility to calculate the moment of inertia to a ucs or a selected point

https://en.wikipedia.org/wiki/Parallel_axis_theorem

https://forums.autodesk.com/t5/inventor-customization/parallel-axis-theorem/td-p/8355621