How I build a custom knife

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Divided he ad:
Aww... No spring :(

No matter.... I'll be watching to see how this is done too.... Everything that someone else crafts is teaching material :thumbup:

I'll not promise to remember it all....(don't have to, it's on 'ere) But I'll recall some detail someday when I'm stuck doing something :scratch: :)

Ralph.

Blade:
I'd be lying if I said I wasn't intrigued.... I'm waiting to see about the spring. Always wondered how, what material and how to get it working properly?

[/quote]

I can answer this question for you even though this knife doesn't use a spring. On most slipjopint knives with a spring the material is usually the same as the blade and you just heat treat it to a slightly lower hardness than the blade. The way that you adjust the tension is by removing material from the spring on the inside of the knife. The shape of the end or tang of the blade also plays a role in how the blade opens and closes, there are points that work like cams to make the blade "walk and talk" which is the snap right when it is full opened or closed. I attached a very basic drawing that I found on the web.

Brass_Machine:
Oh I love this. Very interesting... Like seeing the process. Can't wait for it to be finished.

Tell me about that drill press?

Eric

Blade:
The drill press is a turret made by Burgmaster, by pushing backwards on the handle you can switch to the next drill bit, there are 6 chucks. The head moves clockwise so I have my drill bits in order starting with an 0-80 tap drill then 1-72 and 2-56 drills. I also have two countersinks for 0-80 and 1-72 screws. I have three of them two are model 0-b and one is a model 1-d, the 0-b's are 1/4" capacity and the 1-d is 1/2" capacity. They are great machines for knifemaking because I don't have to change bits all of the time between different sizes.

Blade:
OK, here are some more photos. The next pictures show how I profile the handles on the flat platten on my belt grinder. This is done on an 80 grit ceramic belt and I grind close to my marks but leave a bit for finishing with the finer belts. The third picture show the profiled parts.

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