Have you tried editing the handles at the horn before applying the fillet?quote]

I'll study up on using handles and see how that works.

I'm trying to blend an arm contour into the edge fillet and rim smoothly so that I can machine the arm contour. I'm not having much luck getting the arm contour surface to play nice with the body either.

Maybe the solution is to draw the edges of the fillet, a cross section and sweep two rails around the body?

Rather than do a fillet on something like an arm contour I treat the body as a solid and draw a curve to use as a wirecut - cutting the contour and the fillet in one go. Of course this only works if it's a flat Fender style contour.

Extrude you body outline both sides of the curve so the model is twice the thickness you want (makes the cut easier) Draw your curves, I start with the one that defines the limit of the contour, then draw another curve perpendicular from the original. Rotate the second curve using 3d rotate to the angle you require. The draw a third curve from the end of and in line with the now angled curve. Align the Cplane with these curves and fillet them to whatever radius you require and make sure they're joined. Without changing the CPlane use a wirecut to trim the body to the correct thickness and get a filleted forearm contour in one go.




(Obviously I'd already applied the fillet in the screenshot above)


You can add fillet handles to define a change in fillet radius and by adjusting the space between them the rate of change.

Start by choosing filletedge then add extra handles, then edit those handles with your desired radii. The two inner handles in the shot below are at a smaller radius than the outer ones and spaced to give a suitable transition - in this example because using a large all around radius would undercut where the neck plate would sit - I know this is the top edge, it was done quickly to demonstrate the technique

http://www.morganguitarworks.com/sheldo ... handle.jpg

And how it looks afterwards, as you can see from the first shot there is no problem with the fillet at the forearm contour break.

http://www.morganguitarworks.com/sheldon/fillet.jpg

I'm sure there are lots of other ways to do it but this always works for me.