I want to reshape an oval skew chisel so that it has a curved edge as suggested in "Sharpening Woodturning Tools the Tormek way," page23 and described starting on page 27. As a point of information, I discovered that this manual has an error on page 28. The right hand diagram at the top of the page indicates placing the universal support in hole A on the SVS-50 jig while the text says use hole B. Apparently the text is correct.
My question is: from where will the material be removed on the chisel during this procedure, the heel, the point or both? Knowing this would help me know what to expect before putting an expensive tool on the grinder.
A second question is whether or not there is a consistent definition of the angle in this manual that is referred to as alpha. My guess is that for a skew chisel it is the angle between the two planes that form the edge. If this is correct it would appear to be different from the angle labeled alpha in the top diagram on page 8. In this case the angle appears to be the angle between the plane of the grinding surface and the center line of the tool shaft. I find this confusing.