From the centre point on the meeting rail, project a plumb line to the top and bottom batten slips. Set out a horizontal line below the meeting rail to the left and right hand batten slips.
It may be necessary to wedge the lower sash in position to prevent the meeting rail from moving while the measurements are being taken.
The horizontal measurements, A, B, G and H should be from the plumb line to the inside face of the left and right hand batten slips.
The vertical measurements, C, D, E and F should be from the horizontal line to the inside face of the top and bottom batten slips.
You may also need the distance from the plum line to the centre of the left glazing bar, I, and to the centre of the right glazing bar, J.
The distances from the horizontal line to the centre of the left hand middle hinge, LH, and to the centre of the right hand middle hinge, RH, are also required.
From these measurements, glass panels will be manufactured to suit the size and shape of your window. When fitted, there will be a gap of a few millimetres around each panel. It is important that you set out the plumb line and horizontal line as accurately as possible and all your measurements should be to the nearest millimetre.
The measurements, A to J, LH and RH, in millimetres, are input to a program, Glass Shutters, which generates scripts for running in Dassault Systèmes DraftSightTM which produces the drawings for computer aided manufacture. The scripts produce flipped images suitable for projecting onto the coated side of the glass.
When you run the program, a script file will be stored in:
Documents\Glass Shutters\scr\and an audit file will be stored in:
Documents\Glass Shutters\audit\To run the script in DraftSightTM, use Manage/Run Script. This will generate the drawing and store it in DWG format in:
Documents\Glass Shutters\dwg\If you require the drawing in a different format, use File/Save As. You may wish to set the DraftSightTM default "Save As" type to your preferred format.
The DraftSightTM application is available from www.3ds.com/products-services/draftsight.
To run Glass Shutters you will first need to install the latest version of Java from Java.com.
Then, download and install the desktop shortcut for running Glass Shutters.
This program is free software: you can redistribute it and/or modify it under the terms of
the GNU General Public License as published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version. The source code is located in:
<Program Files location>\Donald G Gray\Glass Shutters\src\