The partially assembled panel, held in place with glazing nails, on the pattern.

Detail of progress on the assembly of the center section of the panel.

David marks a piece for small changes to fit it exactly into its place on the pattern.

Once marked, the shape of the piece is altered, slightly, using a diamond glass grinder.

After grinding, the glass piece is checked again for fit and inserted into the channel, fitting precisely inside the lines on the pattern.

As pieces are added, the panel grows.