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Unusual spoke patterns (was 26" 144 spoke wheels)
in message , Alan Braggins
') wrote: As an alternative something like http://www.terminalvelocity.demon.co...d/3leading.htm could give you a different look on a standard wheel. [three leading, three trailing] Does anyone know why the spokes in this wheel are interwoven? Does the interweaving add anything structurally, or is it just aesthetic? If the 'outside' spokes just ran outside the 'inside' spokes all the way to the rim it would make lacing much easier, and replacing broken spokes a bit easier. -- (Simon Brooke) http://www.jasmine.org.uk/~simon/ ;; Human history becomes more and more a race between ;; education and catastrophe. H.G. Wells, "The Outline of History" |
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#2
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Unusual spoke patterns (was 26" 144 spoke wheels)
Simon Brooke Wrote: in message , Alan Braggins ') wrote: As an alternative something like http://www.terminalvelocity.demon.co...d/3leading.htm could give you a different look on a standard wheel. [three leading, three trailing] Does anyone know why the spokes in this wheel are interwoven? Does the interweaving add anything structurally, or is it just aesthetic? If the 'outside' spokes just ran outside the 'inside' spokes all the way to the rim it would make lacing much easier, and replacing broken spokes a bit easier. -- (Simon Brooke) http://www.jasmine.org.uk/~simon/ ;; Human history becomes more and more a race between ;; education and catastrophe. H.G. Wells, "The Outline of History" Very interesting pattern! I've never seen it before. I suppose they are interwoven to keep each spoke in as straight a line as is possible...ie from the hub to the rim. If all of the outside spokes just run inside the inside spokes the first spoke in the pattern would have a pretty severe path to the rim. It would be crossing the inside spoke very close to the hub flange putting much undo stress at the spoke head. Probably in certain applications and perhaps decades ago in cycling when the quality of parts was not what it is today this pattern could have provided more strength. But I would think that, like in a "twisted" spoke wheel, because the spokes in this pattern are crossing at so many points that in reality it would react very sluggishly to loads. It would not be the super stiff and effecient wheel one might think. ? I dunno...but the look is somewhat cool...although replacing spokes would be a bother!! -- Philman |
#3
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Unusual spoke patterns (was 26" 144 spoke wheels)
Simon Brooke wrote:
As an alternative something like http://www.terminalvelocity.demon.co...d/3leading.htm could give you a different look on a standard wheel. Does anyone know why the spokes in this wheel are interwoven? Does the interweaving add anything structurally, or is it just aesthetic? If the 'outside' spokes just ran outside the 'inside' spokes all the way to the rim it would make lacing much easier, and replacing broken spokes a bit easier. I don't think interlacing is worth the trouble in 3-leading-3-trailing. I've had good results without interlace; see http://www.qnet.com/~crux/wheel.html To quote from Jobst Brandt's book, "Interlaced spokes take up each others slack during severe radial loading and reduce the chance of spokes becoming loose." How important that is depends on the spoke count, your weight, your riding habits, whether it's a dished wheel, and so on. I haven't had a problem with spokes going slack in a non-interlaced 36-spoke front wheel. Tom Ace |
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Unusual spoke patterns (was 26" 144 spoke wheels)
Simon Brooke writes:
in message , Alan Braggins ') wrote: As an alternative something like http://www.terminalvelocity.demon.co...d/3leading.htm could give you a different look on a standard wheel. [three leading, three trailing] Does anyone know why the spokes in this wheel are interwoven? Does the interweaving add anything structurally, or is it just aesthetic? If the 'outside' spokes just ran outside the 'inside' spokes all the way to the rim it would make lacing much easier, and replacing broken spokes a bit easier. I Don't know why, but I built a set of wheels three leading three trailing following an even slightly more interlaced picture at: http://www.stormpages.com/spokeanwheel/lacingcl.htm Building was fairly easy, took me about two hours to do the front and about an hour to do the back. I don't know how hard it would be to replace a spoke but so far I have around 3000 incident free miles on front and rear and I weigh about 1050 newtons mass. |
#5
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Unusual spoke patterns (was 26" 144 spoke wheels)
in message , Tom Ace ') wrote:
Simon Brooke wrote: As an alternative something like http://www.terminalvelocity.demon.co...d/3leading.htm could give you a different look on a standard wheel. Does anyone know why the spokes in this wheel are interwoven? Does the interweaving add anything structurally, or is it just aesthetic? If the 'outside' spokes just ran outside the 'inside' spokes all the way to the rim it would make lacing much easier, and replacing broken spokes a bit easier. I don't think interlacing is worth the trouble in 3-leading-3-trailing. I've had good results without interlace; see http://www.qnet.com/~crux/wheel.html To quote from Jobst Brandt's book, "Interlaced spokes take up each others slack during severe radial loading and reduce the chance of spokes becoming loose." How important that is depends on the spoke count, your weight, your riding habits, whether it's a dished wheel, and so on. I haven't had a problem with spokes going slack in a non-interlaced 36-spoke front wheel. Thanks; that's kind of what I expected. -- (Simon Brooke) http://www.jasmine.org.uk/~simon/ ;; Generally Not Used ;; Except by Middle Aged Computer Scientists |
#6
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Unusual spoke patterns (was 26" 144 spoke wheels)
in message , Jim Smith
') wrote: Simon Brooke writes: in message , Alan Braggins ') wrote: As an alternative something like http://www.terminalvelocity.demon.co...d/3leading.htm could give you a different look on a standard wheel. [three leading, three trailing] Does anyone know why the spokes in this wheel are interwoven? Does the interweaving add anything structurally, or is it just aesthetic? If the 'outside' spokes just ran outside the 'inside' spokes all the way to the rim it would make lacing much easier, and replacing broken spokes a bit easier. I Don't know why, but I built a set of wheels three leading three trailing following an even slightly more interlaced picture at: http://www.stormpages.com/spokeanwheel/lacingcl.htm Building was fairly easy, took me about two hours to do the front and about an hour to do the back. I don't know how hard it would be to replace a spoke but so far I have around 3000 incident free miles on front and rear and I weigh about 1050 newtons mass. OK, that site raises another question. On this page URL:http://www.stormpages.com/spokeanwheel/lacingsr.htm the author criticises the standard half-radial lacing of rear wheels (i.e. with the radial lacing on the non-drive side) and instead recommends half-radial lacing with the radial lacing on the drive side. I can sort of see the logic of this in terms of the trigonometry and the tensions in the spokes. So why do most half-radials not follow this pattern? Is there a problem with transmitting torque along the length of the hub? What are the countervailing arguments? -- (Simon Brooke) http://www.jasmine.org.uk/~simon/ my other car is #Subr-Car: #5d480 ;; This joke is not funny in emacs. |
#7
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Unusual spoke patterns (was 26" 144 spoke wheels)
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