Re: MkIV Driver prototype posted

[hjohnson@pluto.njcc.com (Herbert R Johnson)]

On Sat, 02 May 1998 22:25:46 -0500, Tom Droege <droege@wwa.com> wrote:
*>
*>PS, I have been working on the mechanical design.  I may just build duals.
*>A quad installation would then be a V, I pair, and a B, R pair.  Anyone see
*>anything wrong with this?  I assume it would not be too hard to get both
*>pairs looking at about the same place.    The advantage is that one design
*>fits all.   Sigh, the only cure to a constantly changing design is to stop
*>and build it.  But I am not quite ready for that.   Another advantage is
*>that the pieces are smaller and fit through doors better.  Have to be
*>careful, or the boat will be built in the basement and I won't be able to
*>get it out.  

I think Tom makes sense here. Good mounts are not easy to build, and
a mount for FOUR optics I believe is in uncharted waters. A dual mount
explores most of the same issues but reduces the problems of weight and balance.
It still allows differential photometry and imaging, a definite TASS advantage.
And, a "two-er" allows twice as many heads to be built as a "four-er",
controllers notwithstanding.

Herb Johnson


  **** ------------------------------------------------------ ****
Herbert R. Johnson                      voice 609-771-1503 day/nite
hjohnson@pluto.njcc.com                 Ewing, in central New Jersey, USA
http://pluto.njcc.com/~hjohnson

                 amateur astronomer and astro-tour guide
            resource for classic S-100 computers as "Dr. S-100"
   rebuilder/reseller of Mac Plus computers for your computing pleasure
     and senior engineer and asteroid spotter at Astro Imaging Systems