No one learns from what they do right, most learn from their mistakes like me!I can make them one at a time manually but good god it takes a long time. My second effort was a form tool, expensive in its own right, but I didn't give enough thought to the rigidity and squareness of my lathe so I trashed the first $400 set of cutters.
I have some much valued experience now and am making changes to my lathe before I attempt it again.