need help!

Probably the easiest/best way to start is to buy one of the books available on the subject. Don Robinson offers a book here that I bought and have read a couple of times and think to be pretty good. It also comes with a pattern (drawings) to get you started.

Note that other than some satisfaction from possibly helping a nice guy sell what I think to be a good book on the subject, I get nothing out of plugging Don's book.
 
Chris's instructions are pretty good but he uses an existing folder for a pattern, email me and I have a couple I can share. My best advice is to make a plastic model first, this really helps you understand how a slipjoint works and lets you work out fitting issues, these is from 1/8 micarta and it opens and closes like a real slipjoint.

PS fill in you member info, you never know we may be neighbors!!

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Interesting!

I may have to order the book previously mentioned. I was just thinking about how I might go about making a slipjoint.

I'm guessing the spring is heat treated differently. Anyone have an idea of what HRC is ideal?
 
Interesting!

I may have to order the book previously mentioned. I was just thinking about how I might go about making a slipjoint.

I'm guessing the spring is heat treated differently. Anyone have an idea of what HRC is ideal?

The blade and spring are heat treated the same, but tempered differently. The numbers I've seen recommended for hardness on the spring are 45 to 48 Rc. The first one I made was around 47 Rc.
 
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