#20751 May 21, 2004
I recently caught myself, who am pretty experienced with dscs, in a
dumb mistake. I seem to forget to tighten the azimuth locks on top
of the mount.
Obviously one loosens them while polar aligning. It's very easy to
forget to tighten them again, as your mount head is not in danger of
falling off, and gravity doesn't produce any "dramatic adjustment
results" which can happen if you've neglected tighening up in
A recent discussion here came from s.o. who had given up on Argo
Navis, and gone back to Sky Commander, because of erratic results.
It would not surprise me though, if in the transition from a well-
known dsc box to a more complex one (like AN) one can get caught up
in the details and neglect the azimuth tightening (and maybe
Forgetting to tighten will indeed produce erratic results in
pointing accuracy as twisting one way will torque in one direction
and twisting another way will torque in the other. I recently was
had the azimuth locks so loose that the readouts were maddeningly
erratic, and then it all went away when I re-polar aligned and
tightened everything down.
#20754 May 21, 2004
A bit of a war story, but even more embarrassing I think, I forgot to
remove 85 lbs of counter weights one time when rushing to break down a new
mount in the rain.
When I removed the last of four HD 1/2" threaded bolts from under the
mount, the whole setup (no scope thank god i.e. C14 at the time) passed
over my head and behind me so that I couldn't even try to slow it down
before it crashed on the pavement! The mount was brand new (first light
sort-of), and never saw a 2nd :-). We ALL have our moments :-/
[Non-text portions of this message have been removed]