2002/2003
for the Cathedral Works Dept, Dean & Chapter of Lincoln Cathedral
www.lincolncathedral.com
Architect: Buttress Fuller, Alsop Williams www.bfaw.co.uk

Stewart Design were appointed to carry out the setting out of the intricate tracery to this 13th Century circular plate tracery window, which is being completely replaced within the gable wall, utilising 3d photogrammetry technology. The window sits high in the north wall of the North West Transept to the Cathedral.

Photograph of the Dean's Eye window from inside the Cathedral.
	Outline drawing of external elevation of window extracted from 3D photogrammetry.

This project was made all the more challenging by the fact the window is not a perfect circle, distorted up to 200mm in places, the distortions having occurred due to the various loads over the many years. The wall is also twisted (i.e.out of square) on the plane of the front face within the gable itself. The new window is to be manufactured flat, but fixed slightly angled within the wall in order to fit within the existing gable wall profile.

Stewart Design developed the digital photogrammetry information supplied by Photarc Ltd to produce the setting out drawings and all the templates.

The fixing of the stone window into the gable end is now nearly complete. The fixing of the glazing will now take place, with the whole project due for completion in mid-2006.

The following images are a photo library of the progress on the Dean's Eye window.