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Good eye judgement is
needed for a pleasant and even taper. The surface
finish is good on most woods when the material is
rotated at speeds ranging from 200 - 400 rpm, the
speed of rotation being dependent on the diameter
of wood to be tapered. The larger diameters
require slower speeds whereas a thin back stick
for a Windsor style chair can be tapered
successfully at 400 rpm. When tapering thin
sticks, there is no need for a back steady as the
material is 'trapped' between the sliding
beechwood vee block and the body of the tool,
thus eliminating any whiplash.
Tapering a back stick for a Windsor Chair
Shaping a chair leg
The trapping plane can also form barrel shaped components or
slightly waisted shapes on legs, rungs,
stretchers and other chair parts. When forming
tapers, the rounded material is held only at one
end in a single chuck with no need for a
tailstock. This means that tapering and shaping
can be achieved on lengths of material which are
longer than the lathe bedways.
There are two types of trapping planes:-
- The Standard Trapping Plane - which
is used with our own turning-head or
handcrank, or on lathes which have a
reverse facility.
- The Lathe Trapping Plane - which is
used on ordinary woodturning lathes where
the wood is rotating towards the operator
and there is no reverse facility.
Both are priced the same. The only
difference being in the position of the pivot
lever.
It is important when ordering a
trapping plane that you specify which type you
require.
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