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Wheel Lacing - finding the first hole

Old 06-20-20, 10:55 PM
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paramountx
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Wheel Lacing - finding the first hole

I am using DT SWISS TK-540 and I have no idea which hole do I use to start. The holes do not appear be offset. They all appear to be on the center line. The whole wheel is symmetrical
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Old 06-21-20, 06:30 AM
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For any rim I start with the hole next to the valve hole and that is going to allow the spoke to radiate away (as in not cross) that valve hole. Depending on the rim spoke holes' arrangement this first spoke might go to the inside or outside of the flange. Rims with no hole by hole off sets are not uncommon and are dealt with just like any other but with no regard to which side the hole is offset to and which flange a spoke goes to. Andy
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Old 06-21-20, 08:11 AM
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Roger Musson's wheelbuilding book has a good, clear explanation of this. WHEELBUILDING
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Old 06-21-20, 09:36 AM
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There is a good lacing guide on the Sheldon Brown website. I've used it for the few wheels I've laced and it seems pretty easy to understand. It will tell you which spoke to put in which hole counted from the valve hole, etc. I wouldn't say there is a hole that you put the first spoke in...but the general practice among wheel builders is that the brand on the hub should be lined up, or visible when looking through the valve hole on the rim. So...however you get to that point...I don't think it matters what order the spokes go in. But, there are some hubs that the spoke holes are driller for inner and outer spokes so that the spoke head seats better, and rims with offset holes for left and right.

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Old 06-21-20, 10:18 AM
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Here's what I tell my students in my wheel building class

Lay the rim so it is horizontal. Position the valve hole opposite your stomach with the rim label upside down. The rim’s spoke holes are slightly offset with one hole is a little above the imaginary centerline, the next is a little below, and they alternate that way around the rim. The hole you have put the first spoke into should be offset toward the top of the rim. If the hub is offset to the bottom of the rim, see “How to handle a rare ‘right handed’ rim” in the appendix.







Hold the hub in the center of the rim with the spokes hanging down. If you are OCD or if you have bicycle mechanic friends and want to avoid ridicule, selection of the first spoke is (marginally) important. OCD mechanics want to have the label of the hub visible through the valve stem hole of the rim. To accomplish this, find the label on the hub before adding spokes. Place one spoke directly in front of the label and count 4 spokes holes (i.e. 2 spokes) to the right of the label (Note to Stuart: Yes, rightis correct. Quit changing it, you knob!) Select this spoke (which from now on will be referred to as the No.1 spoke) and put it through the first hole to the left of the valve hole. Attach its nipple a couple of turns.
The problem I find is picking the first spoke of the second round. To find which one is correct, I do the following"

Now comes the only tricky part of lacing a wheel. You must determine which hub flange hole gets the first spoke of the second group (spoke No. 10 overall). Since there are 2 possibilities, drop a spoke through each hole so they rest against the bottom flange vertically and on either side of the No. 1 spoke.


The spoke to the wheelbuilder’s right of Spoke No. 1 is the proper spoke. Put the spoke to the right Spoke No. 1 into the first rim hole to the right of the No. 1 spoke and attach a nipple.

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Old 06-21-20, 11:31 PM
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The thing my rim the is no offset so right from the beginning I couldn't really follow what Uwrote.
I just don't know where my key spoke is going to go.
mgt

Originally Posted by cyccommute View Post
Here's what I tell my students in my wheel building class



The problem I find is picking the first spoke of the second round. To find which one is correct, I do the following"
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Old 06-22-20, 03:13 AM
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If it's symmetrical pick one--it doesn't much matter.
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Old 06-22-20, 08:09 AM
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Originally Posted by paramountx View Post
The thing my rim the is no offset so right from the beginning I couldn't really follow what Uwrote.
I just don't know where my key spoke is going to go.
mgt
It may be subtle but Iíll bet there is an offset of some kind. Iíve never run across a rim that doesnít have offset spoke holes. A right handed rim is so rare that youíll likely never run across one (Iíve seen only one in my wheel building career) so it likely wonít matter. Put the label at your stomach with it upside down and pick the first spoke hole to the left of the valve.
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Old 06-22-20, 12:53 PM
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I think this is a very good way to spoke a wheel; https://pdf.zlibcdn.com/dtoken/3cb670...z-lib.org).pdf
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Old 06-22-20, 01:03 PM
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Pay for the above linked Roger Musson book. Itís very good.
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Old 06-22-20, 03:38 PM
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Originally Posted by cpach View Post
If it's symmetrical pick one--it doesn't much matter.
It probably won't affect the strength but I feel way too amateur when the parallels don't line up with the valve stem.

I've got rims I've ridden hard for years that don't line up, so yeah, it probably is fine.
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Old 06-22-20, 03:49 PM
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You'll get parallel spokes around the valve if you treat a symmetrically drilled rim as either Type A or B. I'd never suggest lacing with angled spokes around the valve.
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