PSN-L Email List Message
Subject: Re: Curved strip
From: "meredith lamb" paleoartifact@.........
Date: Tue, 19 Feb 2008 11:18:54 -0700
Hi Charles & Chris,
A possible partial solution for the 3-4" diameter....use old computer 3" hard
(actually ~3.1" or so) drives for the upright rolling "ends", with
holding spacers inbetween; and then mount your mass and use the
spacers for the screws adjustments. They are light, tough, and have
precision diameters and have a nickel plated all over....and they can be also
be cut in two if really necessary.
On 2/19/08, ChrisAtUpw@....... wrote:
> In a message dated 2008/02/19, charles.r.patton@........ writes:
> > One possibility would be to find a flat piece of standard window pane,
> > mount it, and provide tension screws to physically pressure it into the
> > curve. After all it
> > is only 0.001" in 1". I think glass would bend that much.
> Hi Charles,
> Much less than that. You specified a curve of 1000 ft, presumably the
> If your strip is 6" long
> Center deflection = (0.25)^2 / 2000 x 12 inches = 0.000375"
> Chris Chapman
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