Building Lasers

[Bob Pastorello]

.1 degree is also just a shade over 1/32" difference EACH at the leading and trailing edges.  Understand that we need those kind of accuracies for best, but I believe most folks do NOT resolve incidence to 1/32"....but I understand the need to state precisely.

Bob Pastorello
rcaerobob at cox.net
www.rcaerobats.net


  ----- Original Message ----- 
  From: Karl G. Mueller 
  To: discussion at nsrca.org 
  Sent: Saturday, October 23, 2004 10:06 PM
  Subject: Re: Building Lasers


  Bob,

  A tolerance of .1degrees is not very close to set the incidence.
  Over a wing root of 20" it works out to be .035 inch. This is the max.
  positive incidence I use on the wing when setting up a pattern plane 
  with the stab being set to zero.  A  .1 degree tolerance could give me 
  a setting between 0 and .070 positive when setting up a wing with 
  a 20" root.

  Karl G. Mueller
  kgamueller at rogers.com


    ----- Original Message ----- 
    From: Bob Pastorello 
    To: discussion at nsrca.org 
    Sent: Saturday, October 23, 2004 9:23 PM
    Subject: Re: Building Lasers


    The purpose of the ones I have is not to check incidence, but to verify alignment "square", and "parallel"...currently, a lot of folks use different methods, some height gauges, some fixtures.  When building a plane, I have always struggled with getting the stab square to the fin, and then the wing parallel to the stab...and these differences sure do make a difference in how a bird trims out.

    Incidence is checked with our electronic digital levels, at .1 degree accuracy :-)

    Bob Pastorello
    rcaerobob at cox.net
    www.rcaerobats.net


      ----- Original Message ----- 
      From: Evan H. Dygert 
      To: discussion at nsrca.org 
      Sent: Saturday, October 23, 2004 8:14 PM
      Subject: Re: Building Lasers


      This discussion is getting a little too technical. 
      Seriously though, being new to a lot of this, I would be 
      interested in more details about how to use these laser 
      thingys to check incidence. I am completely new to 
      incidence checking so this probably sounds like a stupid 
      request.

      On Sat, 23 Oct 2004 18:37:53 -0500
        "Bob Pastorello" <rcaerobob at cox.net> wrote:
      >Nope.  They're yellow, about 8" long, 3/4" thick, 2" 
      >tall.  Has a bubble level included that has an LED for 
      >use in dark, and the case has magnets built into the 
      >base.  They were in the tool aisle right by the rest of 
      >the laser thingys.
      >
      >Bob Pastorello
      >rcaerobob at cox.net
      >www.rcaerobats.net
      >
      >
      >  ----- Original Message ----- 
      >  From: Wayne Galligan 
      >  To: discussion at nsrca.org 
      >  Sent: Saturday, October 23, 2004 12:10 PM
      >  Subject: Re: [SPAM] Re: Building Lasers
      >
      >
      >  Bob,
      >
      >  Does this laser thingy have a couple of pins that push 
      >out to like secure it to a wall?   I got one of these for 
      >a gift and was wonderin if it was the same thingy or not. 
      >  Mine is about 3" high x 4" long x 1" wide.  
      >
      >  WG
      >
      >    ----- Original Message ----- 
      >    From: User211991 at aol.com 
      >    To: discussion at nsrca.org 
      >    Sent: Saturday, October 23, 2004 12:02 PM
      >    Subject: [SPAM] Re: Building Lasers
      >
      >
      >    Great idea Bob.. have a P/N or name on these gizmos ? 
      >Where in Wally World were they located ?
      >
      >    Brian 

      Evan H. Dygert
      Dygert Consulting, Inc.
      364 Twelve Oaks Dr.
      Winter Springs, FL 32708
      Tel: 407-739-8194
      Email: evand at dygertconsulting.com
      =====================================
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