In
designs for leaded and copper foiled glass it is important to avoid
lines radiating from a single point. Some of these reasons are:
It
is important to reduce the number of lines that meet in any design to
avoid a big bright solder place in a panel.
It
makes for large solder blobs, especially on leaded glass panels, and
therefore provides a focus where one may not be wanted or required.
The
difference between the harder solder and softer lead came leads -
over time - to cracks in the lead at the edge of the thick solder
blob.
In
leaded and copper foiled glass it is a point of weakness, as there
are likely to be multiple thin or tapering pieces of glass that are
liable to fracture early in the life of the panel.
Methods
of Avoiding
This umbrella image avoids long narrow pieces by having the ribs and supports crossing to make short narrow pieces |
Narrow
tapering pieces can be compensated for by making the narrow parts
shorter than the wider parts of the taper – although this does add
to the density of lead and solder around the termination point.
There is a difficulty in adapting single radiating points in a
drawing to the practicalities of the medium of glass. Examination of
older panels (in either technique) will show some of the problems of
thin tapering pieces. It is obvious in older windows, especially in
the Victorian Era, when tapered pieces where in their glory. Almost
always, the tips are broken. It is the nature of glass, and goes
back to knowing how the medium will react to the conditions you
create.
Good
design will avoid multiple radiating pieces from a single point of
origin.
It
is not possible to make a neat termination by joining half a dozen
tapers at one point. The finished piece will not look like it did
when it was drawn out with a pencil. You can pencil in a termination
with six points, ending at one point and it may look good, but when
you draw the design with the width of the led or foil will show the
clumsy nature of the design with a large termination point.
As
you can see, the answer starts with the design, before you cut and
foil, or fit the came to the glass. Art is not about the physical
placement of what you see in your mind, as much as it is about the
"illusion" you are creating that you want others to see.
That starts with the design, and avoiding something that you know is
going to give you a problem.
It
is not possible to make a neat termination by joining half a dozen
tapers at one point. The finished piece will not look like it did
when it was drawn out with a pencil.
You can pencil in a termination with six points, ending at one point and it may look good, but when you draw the design with the width of the led or foil will show the clumsy nature of the design with a large termination point. As you can see, the answer starts with the design, before you cut and foil, or fit the came to the glass. Art is not about the physical placement of what you see in your mind, as much as it is about the "illusion" you are creating that you want others to see. That starts with the design, and avoiding something that you know is going to give you a problem.
Example of a design that will present difficulties at the centre |
You can pencil in a termination with six points, ending at one point and it may look good, but when you draw the design with the width of the led or foil will show the clumsy nature of the design with a large termination point. As you can see, the answer starts with the design, before you cut and foil, or fit the came to the glass. Art is not about the physical placement of what you see in your mind, as much as it is about the "illusion" you are creating that you want others to see. That starts with the design, and avoiding something that you know is going to give you a problem.
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