Motion skeletons when you have MDO

[gfraulini]

Hi everybody,
recently in the company where I work, our central CAD specialists suggested us to use motion skeletons. The reason they never suggested this to us before is that few mont ago we passed to Creo3, and they told us that in C3 the motion skeleton features are better and evolved respect the past.
I don't know if this is true or not, but I wond why you have to use motion skeletons (msk) when you have MDO (mechanism)?

I read years age that msk were uesed when the MDO was inside Mechanica and it costed a lot; so msk permitted you to move the model also without the possibility of making analysies.

I'd like to know your point of view.
Thanks.
Bye

[DaveMartin · Accepted solution]

You do not have to use Motion Skeletons. The last time I tried using them was Creo 3.0 and I still had trouble getting them to work. Also, since they are based off a Sketch, the motion is limited to 2D.

I've always found the most reliable path to be multiple skeletons where the additional skeletons are assembled using mechanism connections.

And by the way, Motion Skeletons were introduced in Pro/ENGINEER Wildfire 3.0, which was quite a few versions after Mechanism Dynamics Option (MDO) was taken out of Mechanica.