Building Lasers

[Karl G. Mueller]

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
    =====================================
    # To be removed from this list, go to http://www.nsrca.org/discussionA.htm
    and follow the instructions.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20041023/cdcd1376/attachment.html