Rise and fall fixture
This is another extremely useful fixture I made that allows me to set the backspring rise and fall so that the spring returns to the same level position with the back of the knife handle in all positions, open, closed, half stop.
This isn't necessary to make these folders. It simply makes the job faster and more accurate. I'll demonstrate doing this in another way.
Bill Vining, here on this forum, is offering these for sale.
An experienced machinist should be able to make one for himself from the photos.
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