Abstract: A method of supporting a workpiece on a fixture, the workpiece having a first surface and an opposite second surface, and an aperture positioned at a center of the first surface and extending from the first surface to the second surface the fixture having a first end, an opposite second end, and a center portion, the center portion comprising a supporting surface, the second end being adapted to be mounted in a lathe, the supporting surface comprising an annular recess, the annular recess accommodating a supporting medium, the second surface of the workpiece being in intimate contact with the supporting medium, the method comprising the steps of: (i) mounting the fixture in the lathe; (ii) locating the aperture on the first end of the fixture; and (iii) securing the workpiece on the fixture, with the second surface of the workpiece being coplanar with the supporting surface of the fixture.

Abstract: A method of supporting a workpiece on a fixture, the workpiece having a first surface and an opposite second surface, and an aperture positioned at a centre of the first surface and extending from the first surface to the second surface the fixture having a first end, an opposite second end, and a centre portion, the centre portion comprising a supporting surface, the second end being adapted to be mounted in a lathe, the supporting surface comprising an annular recess, the annular recess accommodating a supporting medium, the second surface of the workpiece being in intimate contact with the supporting medium, the method comprising the steps of: (i) mounting the fixture in the lathe; (ii) locating the aperture on the first end of the fixture; and (iii) securing the workpiece on the fixture, with the second surface of the workpiece being coplanar with the supporting surface of the fixture.