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Old 07-16-12, 03:23 PM   #1
Andycapp
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Think I'm finally getting good at this - wheel building success

I laced up my 5th (4th successful) last night. first time I didn't have to refer to the web or other wheels to make sure I got the pattern right. I don't have a truing stand so I waited until I got into work this morning and set it up in a spare fork with a dial indicator. I was a bit impressed with myself by how close I was initially. About 15-20 minutes later I had it within +/-.005 in trueness and hop! More than satisfactory for me but I am curious what is an acceptable tolerance for the pros out there?

Yay me,
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Old 07-16-12, 03:38 PM   #2
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Congrats! But I can't answer your question as I am going to be building my first wheel in the next month or so, after re-reading the Brandt book.
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Old 07-16-12, 03:41 PM   #3
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Woohoo! My tolerance is a lot wider than that. I don't have a dial indicator. My goal is that the rim be truer than the tire.
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Old 07-16-12, 03:45 PM   #4
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Five thousandths of an inch!
I'm not sure if an electron scanning microscope can see that!
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Old 07-16-12, 03:50 PM   #5
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Rim brakes +/- 1mm Hub brakes +/- 2mm I don't actually bother to measure, but if someone asked....

I've got dial indicators, but I save them for other tasks like machine setup and alignment (machining)

I'm with noglider, the tire often has variances larger than the rim.
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Old 07-16-12, 03:55 PM   #6
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Five thousandths of an inch!
I'm not sure if an electron scanning microscope can see that!
You might be surprised. I had about .02" of hop in a couple spots and +/- .015 trueness when I started and it was visually obvious when spinning, especially the hop. But I could tell right away I was a lot closer than my first few builds.

BTW this wheel is a Campagnolo Victory Strada hoop laced to a C-Record front hub using DT butted spokes intended for my Guerciotti. Next up is the rear on a Record 8-speed hub. I chased my tail a bit on the last rear wheel I did but this one has given me a bit of a confidence boost

-Andy
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Old 07-16-12, 03:59 PM   #7
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Even tension is much more important than the deviation of the round/true when you are building a wheel.
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Old 07-16-12, 04:22 PM   #8
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Even tension is much more important than the deviation of the round/true when you are building a wheel.
"feels" good. But I know the co-op in Tacoma has a tension gauge. I plan on going out there next weekend to check my work.
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Old 07-16-12, 05:08 PM   #9
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Congrats! But I can't answer your question as I am going to be building my first wheel in the next month or so, after re-reading the Brandt book.
That's a good book Whatwolf. But also, check out this tutorial. Best one I've read. It really helped me when I did my first wheels.
http://miketechinfo.com/new-tech-wheels-tires.htm
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Old 07-16-12, 05:09 PM   #10
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"feels" good. But I know the co-op in Tacoma has a tension gauge. I plan on going out there next weekend to check my work.
If it feels good, probably it is good. I've built a lot of wheels now without the benefit of a tension gauge, and so-far, it's all good.
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Old 07-16-12, 08:19 PM   #11
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Congrats, Andy - you know, I think I'm going to attempt to do a wheelset while in DG. Lord knows I'll need to keep my mind occupied after I get bored of riding the same 18.5 mile road day in and day out

I have Brandt's book, too, and I think it will be going into my pack-out.

DD
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Old 07-16-12, 09:45 PM   #12
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Once you've ridden on perfect-- and 5 thou is as close to perfect as we're ever gonna get in this vale of tears-- nothing else will do. Congratulations on spoiling yourself!

My problem's always been finding the start point, I finally figured out it is 4 spoke holes to the left of the hub logo for a drive-side 'push' spoke. Once I get that located, then it's all just counting by 4s.
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