I have long thought that if you stare at a problem for long enough the solution will eventually arrive all by itself. On this occasion the problem was how to accurately build the framework for the end windows and the time thinking about it was considerable! The solution was satisfyingly low twch and obvious. The little montage should show my basic but effective jig and if I had thought it was going to work so well I would have used a better bit of wood. As it was, I stuck the plan view of the en