Brian Molanphy on tue 8 apr 03
susan setley wrote:
'There are two kinds of darts -- vertical and horizontal. And, they can =
be
just about any shape.
You want the clay moving toward leather hard but not yet leather hard. =
To
make a salt dog, you throw a tallish cylinder. About 2/3 up, you cut a
vertical dart out of half of it -- you want both top and bottom of the
dart
slightly curved.
The clay must still be flexible enough that the back side can survive =
the
bend. Slip and score the dart, and I have a personal bias for using
paperclay
slip. Make a very thin coil of clay and apply to the outside of the =
dart,
and
smooth, to give the joint strength.'
ok, maybe it can't be described and i gotta see a picture, but try me.
what is a dart? -brian
Susan Setley on wed 9 apr 03
In a message dated 4/9/03 10:18:03 AM, bmolanphy@COLORADOCOLLEGE.EDU writes:
<<
ok, maybe it can't be described and i gotta see a picture, but try me.
what is a dart? -brian >>
It's a term taken from sewing, at least that's where I came across it first.
I think the easiest way to visualize it would be to imagine a circle of clay.
Suppose you roll out a slab of clay, and then use a compass and scribe a
circle. You cut away the excess clay, and have a circle of clay.
Now imagine that you essentially cut a narrow pizza slice out of that circle
-- wider at the circumference, and coming to a point at the center. Bevel
those edges so they will join well, and slip and score them.
You now have a cone.
You used a triangular dart that had a curved side at the edge of the circle.
Now imagine throwing a tall cylinder. Instead of cutting out a pizza slice,
cut out a cat's eye (pupil) -- pointed at both ends, connected by convex
curves. Bevel THOSE edges and join them. Your piece will be shaped sort of
like the top of a ski boot -- wider at the top and bottom, and concave on one
side.
That was a vertical dart. You can cut out the same shape horizontally, and
that will pitch the top of the cylinder to the side.
There are all sorts of ways to dart pieces and I am by no means an expert on
it. I posted it because I thought I could explain it pretty well. Beveling
the edges so they mate well is crucial to a dart.
You can then do all sorts of things. My teacher took a very tall cylinder. He
did a horizontal dart on one side about one third down, and a horizontal dart
buton the other side about two thirds up. He left the seems obvious and then
added... screw heads. One of the coolest things I've seen in a while. :)
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