John,
There is another solution, one well-known to machinists.
Recalculate ALL your lines, positions etc. as x-y coordinates and
then set out the dial in whatever size you want from some convenient
origin. The only question is the resolution of points used to draw
curved lines. If too sparse, the curves look like straight segments
joined together. If too close, there is a lot of work!
Thus you can plot it using units of mm, feet, or metres. This allows
you to have a look at it beforehand.
Another advantage is that you can also use just about any computer
software to plot it for you.
John
Dr John Pickard
Senior Lecturer, Environmental Planning
Graduate School of the Environment
Macquarie University, NSW 2109 Australia
Phone + 61 2 9850 7981 (work)
+ 61 2 9482 8647 (home)
Fax + 61 2 9850 7972 (work)
