Re: ATM A cage as secondary holder

["Michael P. Lindner" <mikel@worldnet.att.net>]

Marinus Lugt wrote:
> 
> Inside the upper cage (of a truss tube design) a second cage
> could be made. This second (inner) cage would be contained
> within the outer cage. The outer cage would be connected with
> truss poles, and support the focuser holder. The inner cage
> would support the secondary holder (via a wire spider).
> The inner cage would be mounted inside the outer cage such
> that it would be possible to adjust it in all directions,
> including rotation and tilt. (More or less like a 3-point
> support for the primary)

That's essentially the same as the wire spider design that Mark Cowan
built, and I am in the process of building.  See my post earlier this
month on wire spiders.

--
Mike Lindner