R
Ron Ruff
Guest
On Apr 25, 10:09 pm, jim beam <[email protected]> wrote:
> that hub hole deformation is *definitely* going to affect exit angle.
> and thus "correcting" the spoke line /before/ tensioning [and
> stabilizing], as most people do, is going to be premature.
Exactly when and how much can be debated I suppose, but... Every hub I
use supports the spoke in such a way as to make the heads-in spokes
"stick out" ie they aren't heading straight to the rim but rather bow
outward. Increasing tension (even overloading) will not eliminate this
completely... so the spoke will end up with an additional bending
load, if nothing else is done about it. This is not a good thing.
Similarly, most rims I use do not allow spokes on the NDS and front
spokes to enter without some bending load at the rim. Some large
flange hubs create a pretty acute angle even on the DS.
I prefer to "correct the spoke line" at the hub rather late in the
building process, but before overloading. I agree that high tension is
probably better for achieving the best "shape" at that point. At the
rim I bend the spokes fairly early, just because it is too difficult
to do well when the tension is high. It seems to me that it is better
for the rim if the nipple lies more closely to perpendicular against
the surface of the rim, to reduce the chance of eyelet deformation and
cracking.
> that hub hole deformation is *definitely* going to affect exit angle.
> and thus "correcting" the spoke line /before/ tensioning [and
> stabilizing], as most people do, is going to be premature.
Exactly when and how much can be debated I suppose, but... Every hub I
use supports the spoke in such a way as to make the heads-in spokes
"stick out" ie they aren't heading straight to the rim but rather bow
outward. Increasing tension (even overloading) will not eliminate this
completely... so the spoke will end up with an additional bending
load, if nothing else is done about it. This is not a good thing.
Similarly, most rims I use do not allow spokes on the NDS and front
spokes to enter without some bending load at the rim. Some large
flange hubs create a pretty acute angle even on the DS.
I prefer to "correct the spoke line" at the hub rather late in the
building process, but before overloading. I agree that high tension is
probably better for achieving the best "shape" at that point. At the
rim I bend the spokes fairly early, just because it is too difficult
to do well when the tension is high. It seems to me that it is better
for the rim if the nipple lies more closely to perpendicular against
the surface of the rim, to reduce the chance of eyelet deformation and
cracking.