To turn plates, disks and arched edges, tangent cuts are
necessary. The piece is moved around its axis and along of the
bench saw as well. What determine the disk curvature or the arch
curvature is the distance between the axis and the saw blade,
that is, the radius (r).
The piece axis can be a nail or screw, loose enough to move the
piece. The axis must be under the piece, absolutely
perpendicular towards the base. Otherwise, the piece will be
eccentric. At the stationery Circular Saw, the fixture must be
fitted on the edge or on the parallel slots.
You can turn perfectly a bench seats, dishes, caps, etc. cutting
the piece equally until the complete rotation at the final of