VERITAS Mk.II, Руководство пользователя

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19
Freehand Sharpening – Carving Tools and Other Tools
Sharpening these tools is not as simple as sharpening
straight blades. A certain level of technique must be
mastered in order to achieve properly sharpened blades.
Novices are advised to practice and to proceed very
carefully, even with fi ne abrasives, as the sharpening
system can quickly remove too much material.
Buffing Wheel – Horizontal
The sharpening system is supplied with a bushing, washer
and screw to secure a felt wheel to the turntable (with the
abrasive disc removed to prevent contamination to the
buffi ng wheel), allowing its face to be used horizontally.
Install as shown in
Figure 22 .
2
The turntable turns at
650 rpm so the buffi ng action will be less aggressive
but more easily controlled than when mounted onto a
typical bench grinder. You may wish to raise the wheel
as shown in
Figure 22 , so that there is better access to its
edge. A shop-made 3 " to 4 " diameter disc, from 1 " to 2 "
thick with a
1
/
4
" concentric hole is ideal. A longer
1
/
4
-20
bolt will be needed, but be sure to have
1
/
4
" to
3
/
8
" thread
engagement in the platter retention thumbscrew hole.
Gouges and Parting Tools
Gouges and parting tools (V-tools) can be sharpened
in a highly controlled manner using the tool guide rod
as a tool rest. With the motor off, adjust the tool guide
assembly to its approximate position, then adjust the
tool extension past the guide rod until the desired bevel
angle is achieved. Wrap a bit of tape around the blade
to indicate the amount of extension past the guide rod.
Hold the tool such that your fi ngers act as a stop and
proceed to sharpen the blade.
Use fi ne abrasives for controlled material removal
and to ensure the proper shape to the edges of these
tools. Abrasion rates can also be adjusted by sliding
the blade along the tool guide rod. Working near the
edge of the turntable results in fast material removal,
while working near the center provides much slower
material removal.
When sharpening V-tools, it is particularly important to
take a careful, measured approach to avoid removing
too much material.
When sharpening gouges, roll the gouge continually, as
stopping at any point will quickly result in a fl at spot
on the curve.
Chapter 5
Freehand Sharpening – Carving Tools and
Other Tools
Figure 22: Horizontal buffing wheel installation.
Figure 23: Sharpening a gouge.
Screw
Washer
Bushing
Regular or Shaped
Buffing Wheel
Optional Spacer
Use finger as a stop
against guide rod.
Tape to Indicate
Tool Extension
2 If using a wheel less than 1 " thick, it will be necessary to make a spacer with stiff, sheet material (plywood) to install between the wheel and the
platter to make up the difference in thickness. Make it roughly circular with a 1 /
4
" concentric hole. It can be any diameter between 2 " and 8 " , but
if it is larger than the wheel, be sure to carefully smooth the outer edge.