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PostPosted: Thu Aug 28, 2014 2:41 am 
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big hucker
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I've calculated the necessary spoke length using a spreadsheet from the Sheldon Brown website...

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Since the DB14 spokes (what I'm planning to use) only come in even number lengths, I'd like your opinion on rounding.

According to the spreadsheet, I need: 287.7mm (x16), 291.0mm (x16), 289.0mm (x16), and 288.9mm (x16)

It seems logical that I should round to: 288mm (x16), 290mm (x16), 288mm (x16), and 290mm (x16)

Does this sound correct?


If correct, it's a bonus that I only need to order two sizes of spokes. :D

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PostPosted: Thu Aug 28, 2014 8:36 am 
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bad kitty!
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Yes that looks right.
If you use the DT Swiss spoke calculator, it will do the rounding for you.


Magura :)

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PostPosted: Sat Aug 30, 2014 3:14 pm 
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big hucker
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Well, the DT Swiss calculator gives me different lengths... :?

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Any suggestions?

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PostPosted: Sat Aug 30, 2014 3:25 pm 
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Aaaand, results from http://www.wheelpro.co.uk/spokecalc/

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If it's a mathematical calculation, why do different websites give me different answers when I use the same input values??? Grrr.....

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PostPosted: Sat Aug 30, 2014 3:32 pm 
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The Sheldon Brown spreadsheet and wheelpro.co.uk website give me very similar numbers. DT Swiss is significantly different.

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I guess I'll go with the SB/wheelpro numbers. Unless someone can suggest a more reliable method...

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PostPosted: Sat Aug 30, 2014 4:27 pm 
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bad kitty!
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So far the DT calculator has never failed me.


Magura :)

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PostPosted: Sat Aug 30, 2014 8:27 pm 
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big hucker
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Magura wrote:
So far the DT calculator has never failed me.


Magura :)

I figured it out. I forgot to put in the spoke hole diameter value into the DT Swiss calculator. It now matches the others.

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PostPosted: Sat Aug 30, 2014 8:30 pm 
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PostPosted: Sun Aug 31, 2014 7:33 am 
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bad kitty!
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:)
I sure thought it sounded funny that those would differ that much.
Having used the DT calculator for perhaps 50 wheels, it would be strange if it all of a sudden would go tits up.


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PostPosted: Sun Aug 31, 2014 9:10 pm 
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big hucker
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As often happens around here, user error caused the problem. :lol:

I guess DT Swiss spokes are available in 1mm increments. The calculator did round to the 1mm. Wheelsmith are only available in 2mm increments. Hope my rounding is better than my ability to use the calculator.

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PostPosted: Mon Sep 01, 2014 3:59 am 
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bad kitty!
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But why not use DT spokes?
They are as good as any if not better, and reasonably priced for the most part.

Magura :)

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PostPosted: Mon Sep 01, 2014 5:08 pm 
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big hucker
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Magura wrote:
But why not use DT spokes?
They are as good as any if not better, and reasonably priced for the most part.

Magura :)

Can't find them in singles. Seems I can only order them in packs. I don't plan on building up an inventory...

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PostPosted: Mon Sep 01, 2014 8:33 pm 
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bad kitty!
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CRC ;)
Dirt cheap as well for the 2.0-1.8-2.0mm.

Magura :)

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PostPosted: Wed Sep 03, 2014 11:17 pm 
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big hucker
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Just purchased the DB14 spokes and nipples from retro-gression.com. Spokes were only $0.75 each and nipples were $0.10. $6.00 shipping. :D

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