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    Re: Cylindrical Slide Rule tube poll
    From: Wolfgang Hasper
    Date: 2010 Jan 20, 10:48 +0100

    Ok I will correct this. I forgot myself also. So we might be in the range of 4.5 metres now...
    -----Urspr�ngliche Nachricht-----
    Von: "Brad Morris" 
    Gesendet: 19.01.10 22:32:01
    An: "NavList@fer3.com" 
    Betreff: [NavList] Re: Cylindrical Slide Rule tube poll
    Hi Wolfgang
    You may have missed me.  When I told Gary I wanted one, I meant it!  Of 
    course, you may have confused me with Bill Morris, a common occurrence.
    I would want one and I do believe Dr. Sult would requested TWO (2), in 
    addition to the construction guide.
    Best Regards
    BRAD Morris
    *emphasis added for clarity, I am not yelling :-)  really!!!
    -----Original Message-----
    From: navlist-bounce@fer3.com [mailto:navlist-bounce@fer3.com] On Behalf Of Wolfgang Hasper
    Sent: Tuesday, January 19, 2010 3:37 PM
    To: NavList@fer3.com
    Subject: [NavList] Re: Cylindrical Slide Rule tube poll
    As of now we are at a total length of 3 metres.
    Bill    Morris
    Paul    Brewer
    Derrick Young
    Thomas A.       Sult
    Hanno   Ix
    Wayne   Lowry
    Douglas         Denny
    were interested.
    I keep the list open so we have an idea of what
    quantities we are looking for...
    I did not receive a quote yet.
    Am Montag, 18. Januar 2010 20:03 schrieb Wolfgang
    > Since we come back to the tubes time after time
    > I am interested to find out how many would like to
    > make an actual reproduction on reproduced tubes?
    > The HR1 uses Aluminium tubes
    > (all dimensions [mm])
    > inner tube    54x1            235 long
    > interm. tube  58x1            225 long
    > outer tube    62x1            222 long
    > A kit of all three sizes 300 long each would be
    > nice. Narrow tolerances are required for the outer
    > diameters to fit the scales, the inner diameter is
    > less important. If there is a felt lining as on the
    > original you can easily compensate for 0.2 mm.
    > Aluminium as the material seems preferable but not
    > compulsory. I would not like to have stainless
    > steel, it is heavy and a pain to machine.
    > To investigate the local possibilities for custom
    > tubes I have started with a firm that works with
    > perspex. Maybe plastic is more realistic to have in
    > custom dimension than aluminium? We'll see.
    > I will try on aluminium tubes also.
    > If Douglas is successful earlier it will be even
    > better, maybe we can get two independent quotes.
    > How many on the list would be interested in how many
    > kits?
    > If you want I could compile a list of all interested
    > so we know how many metres we will have to order ;o)
    > Wolfgang
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