In answer to your question,..... "Do machine shops do this kind of 
work"?.......    I   think they may. I would call a few before I went 
there and try to describe the "part" over the phone. I had an old leaf 
spring from a Spenghnether years ago that I wanted to have duplicated 
and one shop said they could do it but they were too busy at the time. 
There was one PSN member who offered to do it for me but I have not seen 
any "entries" from him in a long time. His name is Bob Barns. You might 
also go to a local vocational high school that has a "machine shop" and 
talk to the instructor........  Hope this helps.   Ed.


On 4/5/2012 12:45 AM, JAMES C ALLEN wrote:
> I know that this is a long shot, but does anyone have parts for an old 
> Spregnether horizontal seismometer?  Specifically the lower wire 
> hinge.  The piece is a short wire with a round brass fitting at each 
> end.  I tried to make it myself using piano wire and round brass 
> stock.  But drilling the round brass stock to insert the wire into has 
> been fraught with failure thus far since the very small drill bits I 
> purchased at the hobby shop keep breaking,  Also, any advice on 
> drilling an approximately .030 diameter hole in round brass stock 
> would also be appreciated.  Do machine shops do this kind of work?
> James Allen
> ------------------------------------------------------------------------
>
> No virus found in this message.
> Checked by AVG - www.avg.com 
> Version: 10.0.1410 / Virus Database: 2109/4915 - Release Date: 04/04/12
>



  
    
    
  
  
    In answer to your question,..... "Do machine shops do this kind of
    work"?.......    I   think they may. I would call a few before I
    went there and try to describe the "part" over the phone. I had an
    old leaf spring from a Spenghnether years ago that I wanted to have
    duplicated and one shop said they could do it but they were too busy
    at the time. There was one PSN member who offered to do it for me
    but I have not seen any "entries" from him in a long time. His name
    is Bob Barns. You might also go to a local vocational high school
    that has a "machine shop" and talk to the instructor........  Hope
    this helps.   Ed.  

    

    

    On 4/5/2012 12:45 AM, JAMES C ALLEN wrote:
    

      

        

          
I know that this is a long shot, but does anyone have
            parts for an old Spregnether horizontal seismometer? 
            Specifically the lower wire hinge.  The piece is a short
            wire with a round brass fitting at each end.  I tried to
            make it myself using piano wire and round brass stock.  But
            drilling the round brass stock to insert the wire into has
            been fraught with failure thus far since the very small
            drill bits I purchased at the hobby shop keep breaking, 
            Also, any advice on drilling an approximately .030 diameter
            hole in round brass stock would also be appreciated.  Do
            machine shops do this kind of work?
          
James Allen
          

            

              
 
              

              
            
          
        
      
      

      
No virus found in
        this message.

        Checked by AVG - www.avg.com

        Version: 10.0.1410 / Virus Database: 2109/4915 - Release Date:
        04/04/12