Here are a few Web sites with information on MDF and/or HDF.
Georgia Pacific
http://www.gp.com/build/products/ebspec.html#mdf
Exim Corp.
http://www.eximcorp.org/Products/Fiberboardmoisture/MRMDFProperties/mrmdfpro
perties.html
US Forest Products Lab Publications (search their Handbook for MD
Fellow Shadow Watchers,
An old school friend in Vancouver confirms that he
has been using the material 'MDF' (Medium Density Fibreboard) and calling
it by that name for many years.
Surely it must be the same in the USA? - is it?
Tony Moss
P.S. I'm still anxious to enc
All,
I think a multiface dial would be the most practical way to go.
However, what kind of shadows would be cast by a sphere (say double the size
of the cylinder) impaled on the tower?
++ron
- Original Message -
From: Roger Bailey <[EMAIL PROTECTED]>
To: Alain MORY <[EMAIL PROTECTED]
At 07:29 PM 3/1/00 +0100, Alain MORY wrote:
>Hi, all diallists !
>>
>I'm asked to realise a vertical sundial on a circular tower. I don't
>know exactly (it's a truism !) how to proceed.
>This sundial will probably be built on stone, but we can't curve the
>stone. Then I think that it will be possi
This sounds like the material I've been using for exterior, vertical
declining dials. I have had good success. The material is easy to work with
a saw and router. It is uniform, dimensionally stable and weather proof.
Some of my dials have been up for over ten years. In this time the paint
has fad
Fellow dialists,
For those in the U.S. thinking of using the suggestion of Tony Moss to
produce sundial layouts laminated in the top layer of a Formica sheet, the
main plant and engineering folks can be contacted at Formica Corp., 10155-T
Reading Rd., Cincinnati, OH 45241. Phone: 513-786-3024. In
Dave Bell contributed:
>
>It does sound durable, at least! One wonders what the one-off cost would
>be, if supplied with the artwork or even pre-plotted paper. (I'm sure
>their paper spec is quite different from common plotter paper!)
It's some years ago now but I remember that the paper 'seemed'