The window would surely sag if it were made flat and then hung horizontally without support. However could it not be made as a very slight dome, ie raised in the centre. It could then be mounted in a fixed frame.
The forces involved would try to flatten the piece but the frame would prevent that. As the doming need only be very slight any paralax error or distortion should be almost imperceptible. Alternatively could it be supported on another pane of normal (almost) imperfection free modern float glass? Would this affect the refractive index or has that already been dealt with in earlier postings? Terry Quoting John Carmichael <[EMAIL PROTECTED]>: > Hello Glassers. > > I was thinking that it might be possible to have a stained glass sundial > window in the ceiling of a room. The metal rod gnomon would be attached to > the outside of the window, then the window and gnomon would be protected by a > protective bubble (plastic?) skylight on the roof. Wouldn't that be neat! > > Here's my big question: > > I've never seen a stained glass window mounted horizontally. Can it be done? > Or will it's own weight cause it to sag. > > thanks, > > John > > John L. Carmichael Jr. > 925 E. Foothills Dr. > Tucson Arizona, USA > Tel: 520-696-1709 > Email: [EMAIL PROTECTED] > Sundial Sculptures Website: http://www.sundialsculptures.com > Stained Glass Sundials Website: > http://advanceassociates.com/Sundials/Stained_Glass ------------------------------------------------ This mail sent through http://webmail.zoom.co.uk -
