Building Lasers

[Wayne Galligan]

Matt,

I can finally put that "B+Grade"  I got in geometry in 1971 to some use now.  Thanks!!!

Wayne
  ----- Original Message ----- 
  From: Rcmaster199 at aol.com 
  To: discussion at nsrca.org 
  Sent: Monday, October 25, 2004 3:56 PM
  Subject: Re: Building Lasers


  Gee whiz, Bobby, I thought I was the only one.

  Wayne, take your square and add its mirror image. You will have a right isosceles triangle with the base being the hypotenuse and the vertical center line bissecting the triangle. Draw several parallel lines to the hypotenuse and they will all be at right angles to the vertical bissector. These serve to line up the stab at the same time the fin post is being aligned. Essentially it becomes an inverted T

  I made mine from a 1/8" piece of plexiglas. It is fairly large right triangle with a hypotenuse some 28" long. It is a super tool for locating the stab and fin exactly at 90 degress to each other. With a little more ingenuity, it serves as a fixture to hold things lined up while the glue cures

  Matt

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