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Re: Cylindrical Slide Rule tube poll
From: Wolfgang Hasper
Date: 2010 Jan 19, 21:36 +0100
From: Wolfgang Hasper
Date: 2010 Jan 19, 21:36 +0100
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. Wolfgang Am Montag, 18. Januar 2010 20:03 schrieb Wolfgang Hasper: > 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