Steve had a pattern on his blog with 6 or 8 half circles on a block of wood. Then you cut each circle out starting with 1 degree, then the next at 2 degree, the next at 3 degree, etc... It was used to practice relief cutting or to test the fallout when cutting on a tilted table.
I searched on the blog but can't find that pdf. pattern...anyone know where it is or what it is called so I can get a copy?
Thanks!