The idea is to be able to grind a slight taper onto each side of a blade...as opposed to just a flat blade with a primary bevel. It'll all make sense once it's done. I hope. Or I've wasted a lot of time, and aluminum.
|The center of the rest has a 2 degree ramp milled into it. The far side is .070" above the main surfaces.|
|This should illustrate the ramp a little better.|
|Temporarily clamped to the tooling arm to check fit.|