98
Tip
Like many professional turners you should put a curve on the edge.
This is easily done with the SVS-50 jig (page 103). Shaping a skew with
a curved edge is faster since the reduced area in contact with the wheel
results in a higher grinding pressure.
These geometries, i.e. the shape and edge angle, are recommended by experienced
woodturners and recognized woodturning workshops around the world, e.g. Glenn Lucas
Woodturning in Ireland, Nick Agar’s “Turning Into Art” in the UK and Drechselstube Neckar-
steinach in Germany.
Since a skew can have an unlimited number of combinations of skew angles, shapes and
edge angles, a new tool has a more or less a different shape than any of the shapes on the
chart. Therefore, you first need to shape your tool to one of the shapes on this chart. Then
the following sharpenings will be an easy task and done in less than a minute.
Note
Stick to the shape you have selected and do not switch from one
shape to another. Then you will get the full benefit of the Tormek TTS-100
Setter, since you can instantly replicate exactly the same shape every time.
Should you need a different shape, then buy another tool and grind it to
your alternative shape. This way of working will give you more time for
turning and fewer interruptions for shaping and sharpening.
Bowl gouges
1
α
=45°
JS
2
P
65
Hole A
Standard profi le.
Only lightly swept back wings.
For turners of all skill levels.
2
α
=45°
Irish profi le. Swept back wings.
Swing the tool 180° from side
to side.
3
α
=40°
JS
2
P
75
Hole A
With long swept back wings.
Somewhat aggressive.
For professional level turners.
4
α
=55°
JS
4
P
65
Hole A
The larger edge angle is benefi cial
when turning deep bowls.
5
α
=60°
JS
6
P
75
Hole A
“Ellsworth” shape.
Wings are pronounced convex.
Spindle gouges
1
α
=30°
JS
2
P
55
Hole B
For tight spots, detail work and
fi nest fi nish.
For professional level turners.
2
α
=45°
JS
2
P
65
Hole A
Standard profi le.
For turners of all skill levels.
Skews
1
Straight edges
JS
20°
P
65
Hole B
For tight spots, detail work and
fi nest fi nish.
For professional level turners.
α
=30°
2
Straight edges
JS
20°
P
55
Hole B
For broad application.
Easier to control than
a 30° edge angle.
α
=45°
3
Radius edges
JS
30°
P
75
Hole B
For tight spots, detail work and
fi nest fi nish.
For professional level turners.
α
=30°
4
Radius edges
JS
30°
P
65
Hole B
For broad application.
Easier to control than
a 30° edge angle.
α
=45°
Flat
Flat
Flat
Flat
Oval
Oval
Oval
Oval
Selection Chart