It looks great!
I resized Jason's first image to 45% to accomodate the blade width, printed it out, cut the paper along the edge, then traced the jagged edge onto the blade with a Sharpie marker.
After that, I used Peter Lyon's technique-
Peter Lyon wrote:Blades don't want to break the way this one had to, so I used a Dremel with a cutoff wheel to cut into the back, then carefully cracked and broke it along these lines.
I cut along the line with my Dremel rotary tool, most of the way through the blade. I then released the clamps and broke it the rest of the way by hand.
Then I clamped it into a bench vise and carefully smoothed out the "broken" edge, using the Dremel. Not too much- just enough for safety. I left the blade edges sharp.
The remaining blade is still in one piece. I think I may leave it that way for now. It was one of those knock-offs, so the fuller stops several inches before the tip, leaving a hexagonal cross-section.
Later I will try to add the proper nicks into the broken edge. I'm very pleased with how it has turned out so far.