From: Dale Eason 
To: Aditya Munshi , atm{at}shore.net
Reply-To: Dale Eason 



-+- Aditya Munshi  wrote:
> Greeting everyone
>
> I am ready to start making my mirror cell but I
> still have no idea, what
> one means by say, a 6-point cell or a 4-point cell.
> I checked many web
> pages on mirror cell design but I cant make out a
> thing with the
> horizontal bars and everything, Another final
> question,  Does a mirror
> supported on a piece of plywood, making contact with
> the plywood
> indirectly through 6 strategically located points
> count as a 6-cell
> cell.

NO !!!!
But an eight inch mirror full thickness or smaller can use three points on
a plywood board.

> What I cant make out is that the cell designs I saw
> on the web are
> supported on bars instead of points.

It is the mirror itself that must be supported on the points not the cell.


>
> Please help me
>
> I'm confused
>
>
> Aditya Munshi
>
>
>

See here for info about mirror cells.
http://users.telerama.com/~mdholm/atm/cells/index.html
However it does not show the mechanical construction.

This shows it a little better:
http://www.davidchandler.com/cell.htm
I found this by doing a search for mirror cell design on yahoo.  There were
many others.

See here for making a simple and inexpensive cell that John Dobson designed.
http://tie.jpl.nasa.gov/tie/dobson/

If you mirror is full 30mm thick and less than 200 MM it will work just
fine.  Otherwise others may be able to help you.  Keep looking at ATM
construction sites and you will figure it out.

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