Here is a blog from a guy who made crown using a vertical bit.
http://tonyswoodshop.blogspot.com/20...n-molding.html
His fixturing is too simple though, and so he got a pretty poor result, lots of waves which indicates to me that the stock was not being held with uniform pressure aginst the bit. If he had used a double fence setup like Bobj3 shows in one of his thumbnails, I think he would probably would have obtained a much better result.
rstermer