Wheels again today (and so on).
Following up from the other day.
I disassembled the rear wheel from the Velocity small-diameter rim
and built the rear wheel for Nomu Lab Wheel #5
using a Chris King hub.
R45 hub, 28H, semi-comp 4-cross Italian laced.
I'll do the truing later.
The reason I bothered to write out "4-cross Italian" specifically
when I don't normally emphasize it like that is...
First, I orient the hub's left-right axis vertically
and pass one spoke through the upper flange from above.
This becomes an outpoke.
Next, when passing a spoke through the lower flange from above,
if you shift it right relative to that first spoke, that's "right drop,"
and if you shift it left, that's "left drop."
In the diagram above, it's right drop, and whether you drop right or left,
this spoke becomes an inpoke.
When the valve hole doesn't end up crossing the final intersection
and you build the rim as a true rim,
with 4-4 JIS lacing the first move is right drop,
with 4-4 Italian lacing the first move is left drop,
but with 4-6 Italian lacing the first move is right drop.
So even though the spoke lengths differ on the non-freewheel side,
if you only look at this initial right-drop state,
4-4 JIS lacing and 4-6 Italian lacing are identical.
And it just so happens that this rebuild changed from 4-4 JIS lacing
to 4-6 Italian lacing.
The most common case when rebuilding rim-brake rear wheels
is 4-4 Italian → 4-6 Italian, but in that scenario,
if the relationship between inpoke and outpoke holes on one flange
remains the same as before the rebuild,
the other flange will have its initial right/left drop reversed,
so the inpoke and outpoke holes flip.
↑This is the non-freewheel-side flange viewed from the outside, and
probably because the original wheel had a small-diameter rim,
even with tight spoke angles,
the flange was scraped alternately with a drill bit
on the side where spoke heads are visible when viewing the flange from the side,
to get better spoke head seating.
This isn't too pronounced on the flange outside, but
on the flange inside it's quite aggressive.
If you're going to do it, at least do it cleanly, I think.
On the non-freewheel side, contrary to the intent of that modification,
in the image above I've threaded an outpoke through the hole
that should house an inpoke spoke head.
If the original were 4-4 Italian lacing,
changing to 4-6 Italian would mean
the freewheel-side inpoke/outpoke holes stay the same
and only the non-freewheel side flips—but
since the original was 4-4 JIS lacing,
both flanges have their inpoke/outpoke holes reversed.
The reason I threaded a spoke that would become an outpoke
through the freewheel side's original inpoke hole at the start,
ignoring the intent of this modification, was...
...it was the initial move where the phase of the hub barrel
as seen through the valve hole
came closest to dead center of the hub barrel's markings.
I haven't confirmed it, but the original state probably had
the hub barrel phase viewed through the valve hole
offset from the state in the image above.
Following up from the other day.
I disassembled the rear wheel from the Velocity small-diameter rim
and built the rear wheel for Nomu Lab Wheel #5
using a Chris King hub.
R45 hub, 28H, semi-comp 4-cross Italian laced.
I'll do the truing later.
The reason I bothered to write out "4-cross Italian" specifically
when I don't normally emphasize it like that is...
First, I orient the hub's left-right axis vertically
and pass one spoke through the upper flange from above.
This becomes an outpoke.
Next, when passing a spoke through the lower flange from above,
if you shift it right relative to that first spoke, that's "right drop,"
and if you shift it left, that's "left drop."
In the diagram above, it's right drop, and whether you drop right or left,
this spoke becomes an inpoke.
When the valve hole doesn't end up crossing the final intersection
and you build the rim as a true rim,
with 4-4 JIS lacing the first move is right drop,
with 4-4 Italian lacing the first move is left drop,
but with 4-6 Italian lacing the first move is right drop.
So even though the spoke lengths differ on the non-freewheel side,
if you only look at this initial right-drop state,
4-4 JIS lacing and 4-6 Italian lacing are identical.
And it just so happens that this rebuild changed from 4-4 JIS lacing
to 4-6 Italian lacing.
The most common case when rebuilding rim-brake rear wheels
is 4-4 Italian → 4-6 Italian, but in that scenario,
if the relationship between inpoke and outpoke holes on one flange
remains the same as before the rebuild,
the other flange will have its initial right/left drop reversed,
so the inpoke and outpoke holes flip.
↑This is the non-freewheel-side flange viewed from the outside, and
probably because the original wheel had a small-diameter rim,
even with tight spoke angles,
the flange was scraped alternately with a drill bit
on the side where spoke heads are visible when viewing the flange from the side,
to get better spoke head seating.
This isn't too pronounced on the flange outside, but
on the flange inside it's quite aggressive.
If you're going to do it, at least do it cleanly, I think.
On the non-freewheel side, contrary to the intent of that modification,
in the image above I've threaded an outpoke through the hole
that should house an inpoke spoke head.
If the original were 4-4 Italian lacing,
changing to 4-6 Italian would mean
the freewheel-side inpoke/outpoke holes stay the same
and only the non-freewheel side flips—but
since the original was 4-4 JIS lacing,
both flanges have their inpoke/outpoke holes reversed.
The reason I threaded a spoke that would become an outpoke
through the freewheel side's original inpoke hole at the start,
ignoring the intent of this modification, was...
...it was the initial move where the phase of the hub barrel
as seen through the valve hole
came closest to dead center of the hub barrel's markings.
I haven't confirmed it, but the original state probably had
the hub barrel phase viewed through the valve hole
offset from the state in the image above.