woodcut TRU-GRIND Instruction Manual page 11

Page 11
Sharpening your old grind or someone else's grind
Every now and then someone will come along and ask for an oddball
woodturning chisel to be sharpened. Skews and parting tools are easy but
gouges need a little more attention. A common different gouge grind is one
with a greater sweep to the wings, sometimes it is a gouge with a small
angle on the nose and greater angle on the wings, or maybe just one that is
in between the "standards" previously mentioned.
First Setting: Fit the gouge into the
Tru-grind Toolholder with a 50mm (2")
protrusion as you would for any other
gouge. Loosen the Base-slide of
the sharpening jig and put the foot of
the toolholder into the Pivot Point at
the end of the slide. Now, rotate the
Toolholder until the chisel is around
towards right angles to the stone, or
the last bit of the ground face is still
in contact with the stone. Shift the Base-slide in or out until that part of the
face of the chisel is in contact with the stone so that the entire length of
the face will be ground. Tighten the
Base-slide Tightening lever.
Second Setting: Rotate the
Toolholder and chisel back to a
central (vertical) position. Change
the tool holder head to leg angle until
the nose of the chisel is in contact
with the stone so that the entire
length of the face will be ground.
Tighten the nut.
Return to the first setting to check that all is well.
Sharpen the chisel.