BASIC WOODTURNING
If the tool rest is positioned too far away from
the workpiece as shown in
Fig.28
, the chisel,
when correctly held will again be too high on
the workpiece. You will also find that you
have less leverage on your side of the tool
rest and it will be very difficult to hold the
chisel.
With a large diameter workpiece, the tool
rest can be above the workpiece centreline
and further out from the surface of the
workpiece than normal.
Fig.29
.
With a small diameter workpiece, the tool
rest should be closer to the surface
workpiece than normal. As the workpiece
gets smaller the rest should be repositioned.
Fig.30
.
POSITIONING THE TOOL REST FOR
CIRCUMFERENCE SCRAPING
When scraping, the position of the tool is not
as critical as it is for cutting operations. The
chisel is normally held horizontally, although it
can be held at an angle to reach difficult
places. The wire edge of the chisel does the
scraping.
Fig.33
and
31
show the result of a
chisel being too low or too high.
Fig.32
shows
the chisel positioned correctly on the tool rest.
- 13 -
Fig.28.
Fig.29.
Fig.31.
Fig.33.
Fig.30.
Fig.32.
HANDLE KICKED
UP
SMALL DIAMETER
NO STOCK
REMOVED
EDGE DIGGING
IN