David,

The Shoulder Fan Geom bone moves just like the Shoulder Geom bone. Isn't suppose to move only 50% of it?

Rusty

The shoulder fan bones move 50% like the biceps, Rusty. Since the shoulder is higher in the chain, it will move everything below it 100%.

Hope that helps.

Oh... okay... so... both the shoulder fan and the bicep fan rotate 50% (or perhaps there is an offset) of the bicep. The different starting points of these two fan bones offer weighting options that, along with the bicep itself, are meant to assist in the cp weighting for the rotation of the bicep. I am use to the bicep fan and its purpose but I do not yet see 'how' the shoulder fan assists. This should become clearer as I use it... of course if you have any words of wisdom (or even lessor words LOL) please send them!

Tally Ho,
Rusty

The origin of the bones is the difference, Rusty. The shoulder_fan would lower the CP's as the bicep is rotated down, the bicep_fan would do a rotation more like the bicep. If you make an Action that rotates the bicep down, then go back and unhide the geometry bones at the start of the Action and scrub through it, you'll get an idea of what they do.

Hope that helps.

The above is part of your signiture huh? :-)

Yes it does help. I did study the movement of the geometry bones.

Thanks!

No, but it probably should be...I use it a lot.