1. The jigs shown will route an ellipse, not a true oval. There is a slight mathematical difference. Most of what we see today are ellipses, not ovals...
2. If you already have the "oval", what is the measurement between the 'inside' and the 'outside'? You may be able to make 2 male templates and use your existing bit.
3. The quickest and easiest answer is to buy the profile bit with a bearing.
Unfortunately, your profile does not show what tools and experience you have. If you gave us some more information, we may be able to help.
I don't mind if other members disagree with my comments.
I don't profess to know everything, and I may learn something new.
"Never attribute to malice that which is adequately explained by stupidity."
Last edited by jw2170; 06-28-2012 at 10:37 PM.