investigated the two main mosaic construction techniques and have described
them in detail on this webpage in the Technical section of the SGS website:
http://advanceassociates.com/Sundials/Stained_Glass/TechInfo_files/Tech10.html#Mosaic%20Sundials
You can find out more about the mosaic materials and tools used by the
experts if you request the free Delphi catalogue at: www.delphiglass.com or
call 1-800-248-2048.
Reading this catalog will give you much practical information on the
materials and tools of the trade and how to use them. It's easier than you
might think. Also, your local stained glass shop probably gives classes in
mosaic construction and probably sells everything you will need.
John
A great deal more information can be gleaned from the ----- Original
Message -----
From: "Frank King" <[EMAIL PROTECTED]>
To: <[email protected]>
Cc: "Frank King" <[EMAIL PROTECTED]>
Sent: Monday, April 11, 2005 9:19 AM
Subject: Re: On the greatest size of an analemmatic and more
Dear All,
Many thanks to Tony Moss and Brian Albinson for the most
erudite comments so far...
Tony: I vaguely recall the constructions techniques used in
Spitsbergen, namely very deep piles as you note. Here, of
course, there is permafrost and one can rely on the ground
being permanently frozen below a certain depth which gives
stability. I am not sure how this translates when you go
to not-quite-so-frozen latitudes a little further south!
Brian: I am most interested to hear of your method (ii) for
mosaic work. This sounds well worth pursuing. What kind of
foundations did you have below the surface? How do you stop
water getting into the ground beneath the dial and doing
nasty things when it freezes and thaws?
Frank King
Cambridge, U.K.
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