## PSN-L Email List Message

Subject: Re:
From: ChrisAtUpw@.......
Date: Tue, 19 Feb 2008 01:34:41 EST

In a message dated 2008/02/19, tedr@........... writes:

> You could create the same "rolling" effect by having 2 narrow plates a
> short distance apart on the upper edge of each a shallow curve of about 1000'
> radius. On these you sit a ground and polished rod of, say, 2" (~50mm). I'm sure
> this would give the same effect as your cylinder, the only problem being of
> course - the creation of the curves.

Hi Ted,

You could probably get this sort of curvature most easily by flexing a
flat plate? It is approximately 0.75 thou for a 6" long plate!

Part of the problem is having large area contacts. This is most easily
corrected with either strips of foil or wires.

Regards,

Chris Chapman
In a me=
ssage dated 2008/02/19, tedr@........... writes:

You could create the same "roll= ing" effect by having 2 narrow plates a short distance apart on the upper ed= ge of each a shallow curve of about 1000' radius. On these you sit a ground=20= and polished rod of, say, 2" (~50mm). I'm sure this would give the same effe= ct as your cylinder, the only problem being of course - the creation of the=20= curves.

Hi Ted,

You could probably get this sort of cur= vature most easily by flexing a flat plate? It is approximately 0.75 thou fo= r a 6" long plate!

Part of the problem is having large are= a contacts. This is most easily corrected with either strips of foil or wire= s.

Regards,

Chris Chapman