Rex B wrote...
On Fri, 16 Apr 2004 14:51:22 GMT, Jim Wilson wrote:

|| If you can modify one to have a very fine aperture
||(I.e, very narrow slit in very thin material), it should be able to do
||what you want, within reason.

How would one go about that?

I would screw two pieces of thin brass or steel to a couple of cross
members. Make one edge easily adjustable, say, with elongated screw
holes. Then attach the "slit" to the laser so that it lies in the path of
the beam. You may need to fiddle with the rotation to get the result you
want.

I have 3 different laser levels, all have a beam that is about
1/8" - 3/16" at 6 feet. I'd like that to be under 1/16" at 15 feet.

Seems to me that this should be possible.

Note that there's no free lunch here. The slit will markedly decrease the
brightness of the beam. This limits the maximum distance at which it's an
effective tweak for you. Can't hurt to play around with it though.

Good luck!

Jim

P.S. I uploaded a couple photos to my web site, in response to another
fellow's post in this thread. You might take a peek, to make sure we're
on the same page and that something similar might work for you. They're
at:

http://www.paragoncode.com/temp/laser_beam.jpg
http://www.paragoncode.com/temp/laser_setup.jpg