RE: ATM 21" f/6 report: status and questions

["Mel Bartels" <mbartels@efn.org>]

>>>
I suspect the mirror is going to be hard to push over
the lap with these dimensions.  Do you all think this will be a
problem?  If
so, what are my alternatives.
<<<

One person can hand push a 20 inch on a full sized lap, with the
consequence of a buff bod!  Plan on 30 minute spells at most, unless
you have a buddy to help.

>>>
I plan to make another smaller lap for figuring, but what's a good
size for
this mirror?
<<<

Since this is relatively shallow f/6, I would suggest a very mild star
lap about 50% mirror diameter in size.

Mel Bartels