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Perils of Trying a Radian...Or How to Add a Set Screw to an Astroscan?

Started by stedman, 07/24/2005 12:39AM
Posted 07/24/2005 12:39AM | Edited 07/24/2005 12:44AM Opening Post
Made the mistake of trying a Radian in my Astroscan. Loved the views.

Now I must figure out a way to add a set screw to the focuser tube so that if the 'Scan were to droop or rotate unexpectedly, it doesn't dump the TV. (For those unfamiliar with the 'Scan, the focuser tube, which is metal, has no screw to lock an eyepiece in place.)

Even better would be a replacement tube with set screws (so that my lack of handiwork skills doesn't destroy the original tube). Tried to swap it with an extender tube that had set screws, but that's designed to fit inside a 1.25" tube not replace one.

Any ideas? Suggestions? Anyone done anything like this?
Posted 07/24/2005 04:10AM #1
Larry,

Yes, I have a suggestion, spend $169 on a set screw. Actually two set screws, so it's only about $80 each.
Along with them comes a Starblast, which has a better focuser, a much better finder, and a much better mirror. which is cdllimatible mirror. The mirror is one-half inch larger as well.
I don't know how the Starblast works with Panopitcs. I would guess very well. It works fine with my 24mm TV Widefield, and great with my 12mm Type 2 Nagler, my 9m Nagler, a 1.8x and a 2.5x TV Barlow.
In other words I think the Starblast has made the Astroscan obsolete. Starblast optics and mechanics are much better.
Bill Meyers
Posted 07/25/2005 12:02AM #2
"Now I must figure out a way to add a set screw to the focuser tube so that if the 'Scan were to droop or rotate unexpectedly, it doesn't dump the TV."

=======================

How about a small hose clamp?
A piece of double sided tape can hold it permanently in place at the top of the focuser.