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Stuart
brought a long some examples of his excellent work.
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Stuart
began his demo by showing how the skew can be used to obtain most
shapes when spindle turning. |
Next
Stuart moved on to show how he marks out his wood to enable him to
produce spirals with 2, 4 & 8 degrees of twist. First the work is
split length wises according to how many twists one wants to produce.
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Next
horizontal lines are marked a long the work, this effectively creates
many boxes on the work. The appropriate apexes of these boxes are then
joined up to show the line the spiral will follow round and a long the
work.
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Once all
the marking out has been completed work can begun to actually cut the
spirals. Stuart showed 3 techniques which can be employed to do the
cutting. This varied from using manual rasps, to motorised rasps up to
using an Arbortech cutter.
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Here we
see the first of the spirals taking shape using basic tools such as
rasps.
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Now
Stuart is using an Arbortech to speed the process of cutting the
spirals.
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Using
this tool the process of breaking through into to the centre of the
spiral is made much easier and quicker.
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Once the
spiral cutting is complete then a power rasp is used to do an initial
clean up of the spirals. Final cleaning and finishing being done
using decreasing grades of finishing paper.
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The next
item Stuart showed us was a hollow form with spiral cut on the outside.
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Here we
see the basic shape of the hollow form with the marking which will aid
cutting of the spirals.
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Here you
can clearly see the guide lines for cutting the spirals on the outside
of
the hollow form.
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Mark-up
complete Stuart explains how he will cut every line down to about 3/8"
and then cut every third one much deeper.
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Cutting
progresses a pace.
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Cutting
nearly progressed enough to allow....
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the
hollowing to be done. Stuart explained although there are many ways
hollowing can be done he prefers to use a bowl gouge with slightly
altered grind.
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The
hollowing is complete so now Stuart refines the shape of the form
towards what will ultimately become the base.
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The
spirals being cleaned and slightly refined.
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Here
Stuart shows how he prevents the base from splitting as it dry out. He
grinds small holes in it, then surrounds the base with tape and fills
the holes with super glue.
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Turning
complete the form is now allowed to dry before final finishing.
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Next
item begins to take shape, i.e. a goblet turned from walnut.
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The bowl
is complete and gets it finishing coat.
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The stem
is turned to its required diameter and the foot shape is being refined.
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The
spirals on the stem have been marked out and cutting them begins.
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The
nearly completed spirals can clearly been seen here.
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Cutting
the spirals complete, Stuart shows how he uses his "special tools" ☺ to
finish the spirals.
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The
completed goblet.
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Stuart's
next item is going to be a small vase with a lace effect round
the rim.
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Think
this is some holiday-maker who just wandered in off the street!
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The
shape of the vase has been achieved so now Stuart drills holes
round the rim which will be opened up to give the lace effect.
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As the
wood is slightly wetter than Stuart would like he uses some tissue and
applies pressure to the rotating edge to generate heat and drive out
some of the
moisture.
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The lace
effect can now clearly be seen taking shape.
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The
small rasp comes out to refine the lace edge.
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Stuart
now working on another hollow form, which this time will not cut with
spirals but will have walls so thin that they'll transmit light.
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The
outside has the desired shape and the inside hollowing has progressed
to the point where light begins to show though the walls.
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Slowly
the inside shape is refined and the light used to show where more wood
needs to be removed.
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Just
about there as the light showing though the wall takes on a uniform
glow across the piece.
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Stuart
starts work on the last piece of his excellent days demonstration. Here
we see the marking out for what will become one of his "pig-tail"
spirals.
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The
Arbortech comes out again to sped cutting the of the spiral.
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The
power rasp being used to clean up the spiral.
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The
spirals have been cut and cleaned up now the piece is spun up again and
the outside shape refined.
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