Hi, I'm
Tim Heuer.
Answering a post on the silverlight.net forum I felt it would better to visually demonstrate how I used the Expression tools (Design and Blend) to create an arc (half circle) as well as changing the rotation point of an element for animations.
Check out
my blog for more goodness.
Watch the screencast(WMV)
Read the complete post at http://channel9.msdn.com/ShowPost.aspx?PostID=342171#342171