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"10 Coil Type" Ferrules conquered (I think)
Since I have no success finding a supplier for the ferrules I decided to make them myself. As it is true for most parts of this kind of project it took longer to figure out how than it did to actually make them.
The original ferrules were oval shaped. I tried but I could not replicate that shape. I tried to smash mine in the vise but that did not work either. I know a spring manufacturer could make them (I talked to one) but it was beyond my ability and equipment so mine are round.
The plane spec. 0.078 stainless spring wire. I found 0.080 spring wire at McMaster.com (part #. 89045K45 for one lbs roll or 89045K76 for 5 lbs). I used this for my ferrules but I think you could easily reduce the size to 0.051 without sacrificing strength. I used about 1.5 lbs to make 100 ferrules.
I made the springs in a lathe. I was able to make a spring about 26 inches long each run. I used a 5/32 Tig rod to rap the wire around. This worked well because is was smooth. In the pictures you will see the center rod mounted in the lathe. More pictures in following post.
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