Building The Steven's Favorite

[ferryman]

(07-11-2012, 08:30 PM)TomG Wrote:

Machining the oval head on the screws with a form tool.

Tom, sorry to be so slow here and bring up stuff from a while ago, but its takes me time to wade through a lot of these posts.
I have never thought of using a form tool for repetitive shapes. My question is though, in the picture it looks like the form shape is larger than half and "passes" the centre point and would be kinda rubbing as the work rotated "up" not cutting as it were on the "down" side? Or is that just perspective?
Phillip