Re: [ATM] Unique New Equatorial Platform Design

["Mel Bartels" <mbartels@bbastrodesigns.com>]

> For an ATM to actually [achieve] a circle symmetrical enough to
> produce tracking smoothness measured in arc-seconds... THAT is
> more difficult. Also very difficult in practice is actually
> implementing an axis of rotation for that circle that is
> precisely perpendicular to its plane. :)

Well, we seem to be talking past each other now.  Not trying to change your
mind - just pointing out that some very experienced amateurs have a
different opinion on what's actually easier to make.  For instance, the
circle can self-define its plane if you use a cone shaped shaft underneath
the polar disc to drive it.

I'm looking through my files but can't find those articles - I did a major
cleanout a year ago or so and killed my equatorial table folder.  But if you
can grab Telescope Making mags from late '70's through late '80's you should
find a few pics/articles.

And BTW, I join the others in complimenting the workmanship and your
achieving synergy beyond the individual elements.

Mel Bartels




_______________________________________________
ATM mailing list http://www.atmlist.net/