Bamboo Fly Rod Ferrules III

The third challenge the bamboo rod maker faces in fitting nickel silver ferrules for bamboo fly rods is the finish on the surface of the male ferrule.  A bamboo fly rod that joins and unjoins smoothly is a pleasure to fish with.  Figuring out how to make this happen is another matter entirely.

Getting the male ferrule on the bamboo fly rod to fit correctly is, as stated in last weeks post, a matter of having the OD of the male ferrule the same diameter  all along its length.

In addition, and very important, is that the finish of the male nickle silver ferrule is smooth.  Usually far smoother than when it comes from the supplier.

Bamboo fly rod nickel silver ferrule

Bamboo fly rod nickel silver ferrule

In the above image, the difference between the finish on the shoulder on the left , and the finish of the turned male slide on the left is obvious.  The machined surface on the right shows the pitted and pulled surface of the nickel silver ferrule.

Ridges on male nickel silver ferrule

Ridges on male nickel silver ferrule

While these imperfections are small  (shown under 15x magnification)  they must be corrected  if the bamboo rod maker is going to fit the ferrules successfully.  Again, the difference in finish shown above highlights the difference in surface finish between the shoulder and the male slide.

So three things need to happen at the same time.  The diameter of the male ferrule needs to be even across the slide, the diameter needs to be reduced to the point where an interference fit happens between the male and female, and the surface finish of the male slide needs to be as fine as possible.  More to come.

Posted by on March 1st, 2009

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