Dennis Stover wrote:
>
(cut)
> I have seen many NR posts with flutes machined to
> make them look like a SR. The logo is a dead
> giveaway. Coming from a machinist background, I have
> also noticed that in every SR seat post (1 bolt or 2)
> are cut with what appears to be the side of the
> cutter. You will notice that the flutes taper to a
> rounded point at each end, with a very nice radius
> along the bottom of the flute. In every example of
> a "converted" NR seat post, the end of an endmill is
> used. This results in a groove that is square at the
> bottom and the ends have a full radius. The finish
> at the bottom of the flute will look like a series of
> circles.
One part I had modified in the early 1980s that will confound Campagnolo Scholars in the future was a single-bolt Super Record seat post. I never liked the short flutes compared to the longer flutes on the earlier two-bolt Super Record seat post, so I had a machinist friend extend the flutes on down the seat post. He used the side of a cutter that he had ground to match the profile of the Campagnolo flute.
I also had the saddle clamping hardware black anodized at the same time.
Chuck Schmidt SoPas, SoCal
.