https://youtu.be/fD3pOKM31LU Made in Jan 2015, and it still applies
https://youtu.be/ovwU2iDwKuA Made in 2010, and it still applies.
0 - 179 - 358 - 0 Four Numbers that if spaced evenly for time line position, in this order, gives a perfect 360 rotation in iClone.
Use the resulting collection of transforms as a perform, and then use the item rotated as a Dummy that rotates anything in a perfectly looping spin.
You can turn it sideways, upside down, or not use it at all; and just add a perform to the Tire or Blades, or whatever.
Just make sure the item being rotated is Centered for it's Pivot.
The shorter the space on the timeline the faster the rotation:
ie.. 0 Frame 1, 179 Frame 60, 358 at Frame 90, and 0 at Frame 120 will produce a fairly fast 4 second spin. This can be stretched to slow it down, it can be shrunk to speed it up. BUT, it will always give you a perfect loop if the FOUR transform KEYS are collected as a NEW Perform command..
SKYPE ID: rc.650
http://city.reallusion.com/store/ModuleExpand.aspx?id=GS634545170497417354&mdid=18866
http://city.reallusion.com/ContentTag.aspx?tagname=Cricky&AuthorID=20081020688550191201#]Reallusion Store Content
" If I had Alzheimer's (Old Timers), would I know it? "