Drop-outs

Draping and slumping are two techniques for turning a two dimensional sheet of glass into a three dimensional object using a mould.

Another technique allows gravity to dictate the finished shape.

This is called : Drop-out.

I can then turn one of these:

Three layers of 3mm Tekta, with a grid drawn on with glass paint.
Three layers of 3mm Tekta, with a grid drawn on with glass paint.

Into this:

Looks like a glass
Looks like a glass

Here’s the set-up in the kiln.  In order to work out where the glass stretched, I had drawn a grid on the glass using glass paint.

Before firing
Before firing
Before firing
Before firing

And here’s the end result.  Note that the centre of the piece hasn’t deformed much: the grid here is unstretched.

After firing
After firing
After firing
After firing

In between was a nerve-wracking 40 minutes where I had to keep looking through the kiln vent to check how much the glass had dropped through the ring.

Next to try colours.