Re: Ronchi Test

Bob Madden (madden@netcom.com)
Mon, 1 May 1995 20:27:31 -0700 (PDT)

Thanks Tony, I just have to print on a 600 dpi printer. Adobe Illustrator allows you to set the lines per inch and then you can fill in with equal spaces between. After I finish my reading I gotta go try it.

Bopb

):-{])) <---- madden@netcom.com madden@svpal.org Remember amateur astronomers: "keep looking for the next Universe"

On Mon, 1 May 1995, Tony Cecce, Corning, NY wrote:

> I used AutoCAD (version 13?) to draw the lines. I needed to use the
> pline command so I could set the width of the first line to .003".
> The array command alowed me to easily place the rest of the lines at
> .010" spacing. This was plotted on a Hp LaserJet 4 at 600dpi
> resolution on standard transparency (mylar) stock. It seemed to work
> too well (showed a lot more turned down edge than I wanted to see).
> I've also made more grids at other spacings and line widths but haven't
> had a chance to compare them.
>
> Tony
>