Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Mon Nov 20, 2017 6:51 pm

All times are UTC+01:00




Post new topic  Reply to topic  [ 21 posts ]  Go to page Previous 1 2
Author Message
PostPosted: Sat Apr 05, 2014 5:10 pm 
Offline
in the industry
User avatar

Joined: Sun Jul 29, 2012 2:59 pm
Posts: 855
Location: Ruidoso, NM
Marin wrote:
Yes, otherwise they wouldn't touch at all. The idea is to prevent a single spoke from going completely slack when unloaded by making it share stresses with the crossing spoke.


Doesn't actually work. After adjusting the spoke line and stress relieving the spokes should not be pushing sideways with any force. And even if they were limp threads, the side force would only add a couple % to the max load before they'd go slack.

_________________
formerly rruff...


Top
   
PostPosted: Sun Apr 06, 2014 9:01 am 
Offline

Joined: Wed Jan 22, 2014 11:48 am
Posts: 2426
Location: Vienna Austria
Well, they are definitely pushing sideways in my build :-) I'll take the few %.


Top
   
Posted: Sun Apr 06, 2014 9:01 am 


Top
   
 
PostPosted: Sun Apr 06, 2014 10:41 pm 
Offline
in the industry
User avatar

Joined: Sun Jul 29, 2012 2:59 pm
Posts: 855
Location: Ruidoso, NM
You need to fix that...

_________________
formerly rruff...


Top
   
PostPosted: Mon Apr 07, 2014 7:13 am 
Offline

Joined: Wed Jan 22, 2014 11:48 am
Posts: 2426
Location: Vienna Austria
Can you explain again why? Lacing the spokes / crossing over&under has been recommended for 2- and 3x builds practically since these patterns have been invented, and I and most other builders have always done it that way, so the info that this is a problem is news to me.

What do you think the negative effects could be?


Top
   
PostPosted: Fri Apr 18, 2014 12:21 am 
Offline
User avatar

Joined: Thu May 21, 2009 6:32 am
Posts: 13
Location: Cumming GA
The over under pattern helps lock the spokes to help prevent sheer under torsion. However in the case of your front wheel there are two factors that have led to the extreme angles you are seeing. The first issue is the 20 hole drilling and the second is the small flange. Normally a two cross pattern with a 20 hole hub on a 700c rim would have been ok. However with the reduced flange diameter the holes on the hubs come closer together causing the extreme angle you see.
All that being said there is little need to be concerned as the yield strength of the spoke has only been exceeded once at this point and as long as the wheel has been properly tensioned and stress relieved there is very little reason to expect work hardening do to excessive movement.

_________________
"If the frame is the heart of the bicycle, the wheels are its soul". Richard Craig

www.prowheelbuilder.com


Top
   
PostPosted: Sun Apr 20, 2014 8:23 am 
Offline

Joined: Wed Jan 22, 2014 11:48 am
Posts: 2426
Location: Vienna Austria
The angles aren't even that extreme, they are exaggerated by the photograph. I'd build the wheel the same way again.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 21 posts ]  Go to page Previous 1 2

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. New braking surface pattern on Bora 35-50

in Everything wheels

ferrarista

14

2197

Wed May 24, 2017 4:04 am

Calnago View the latest post

There are no new unread posts for this topic. Spoke tension question

in Everything wheels

addictR1

2

438

Wed May 10, 2017 1:07 am

addictR1 View the latest post

There are no new unread posts for this topic. WTB: 50/34 Cannondale 10 Spoke OPI SpideRing

in Wanted

nobuseri

0

87

Wed Aug 16, 2017 5:00 pm

nobuseri View the latest post

There are no new unread posts for this topic. ENVE 4.5 SES - Spoke woes...

[ Go to page: 1 2 ]

in Everything wheels

clipsed

17

745

Wed Nov 08, 2017 1:28 pm

ergott View the latest post

There are no new unread posts for this topic. J-bend spoke would not fit through Extralite CyberFront SL hub

in Everything wheels

professorandre22

3

347

Thu Aug 03, 2017 5:30 am

professorandre22 View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: No registered users and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited