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full tang folder. or folding sheath knife. with bonus saw


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Home Forums Gear Forums Make Your Own Gear full tang folder. or folding sheath knife. with bonus saw

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  • #1289820
    Leonid Angere
    BPL Member

    @leothelamb

    Hello to all. I've been lurking around the forums here for a few weeks and thought it a good place to share some of my ideas. To be honest, I've never done any backpacking, but I have always loved to hike and take long walks. I intend to take up more serious hiking and backpacking, hopefully in the near future.

    This is a prototype knife/saw combo I made from a sawzall blade I found on one of my walks. The handle halves are some fiberboard from old cabinet backing. Probably not a terribly novel idea, but it's a new one for me. Inspiration for the knife part came from the 'dollar survival knife' page on m4040.com.knifesaw1knifesaw2knifesaw3
    The little pins at top of handle keep the saw edge from going any further when using the knife. At first the saw didn't want to close all the way because of the angle of the saw teeth relative to the pin placement, but the pins wore down enough so that now the saw locks with a nice 'click'. The knife doesn't need a locking mechanism because the hand keeps it in place, and the saw is stopped by a pin (near the pivot). The saw swings downward freely in use, but that's not much of an issue with a draw cut.

    The only thing I did to the recipro blade (other than the knife shaping) was cut a few millimeters off of the little end protrusion so the saw could open farther. I tried putting the stopper pin in a place where it wouldn't interfere with the protrusion, but the saw handle would have had to be more angled. This seems to be a good angle for sawing.

    I'm pleased with the knife's edge-holding ability. I used it to drill/carve a one-inch hole through a two-inch stick and the edge and tip held up great. (The wood was admittedly pretty soft, but still..) It sharpens easily, too. The saw teeth are much harder than the rest of the steel, so I used a dremel to sharpen the little upper edge (didn't want to ruin my files).

    The saw is pretty nifty for smaller branches, though this prototype is not the comfiest. The next handle will be a bit longer and more hand-filling. I thought that thin handles on knives were cool, but this project has convinced me otherwise.

    #1876927
    Ray Bailly
    Member

    @tempestv

    It's kinda similar in concept to the Sog Revolver.

    Extend the blade out of the back of the knife (when it's folded) to add a lanyard, and the extra metal will allow you to lock the saw open as well.

    #1876947
    Colin Krusor
    BPL Member

    @ckrusor

    Locale: Northwest US

    Leonid, this little tool is very clever. I think the design is brilliant. I wish there were a commercial version of this tool so I could add one to my backpacking kit. Your design is better than the SOG revolver, I think, because the saw blade is long. Good work.

    #1876955
    Ray Bailly
    Member

    @tempestv

    Also, you don't stand a chance of slamming the knife edge into the lock pin every time you switch to the saw, like you do on the revolver.

    I think it was Benchmade that had a knife like this a while back, but rather than a saw and blade, it was a fixed blade that turned into a longer folding blade.

    Anyways, cool knife

    #1877067
    Leonid Angere
    BPL Member

    @leothelamb

    This wasn't too difficult to make, and I think I'll use it a while longer before upgrading the handle. Seems robust enough even with the cheap materials. To make everything work, I started with one oversized handle scale and screwed only the pivot in place. From there I figured out how it would swing open and where to put the locking pins. The handle shape isn't too hard to come up with and is very customizable, as with the blade shape. I'm thinking I should have made more of a guard on the handle. I don't know if it would make the knife better, but it would help keep the hand in place when sawing.

    Ray, I'm not sure how you mean about locking the saw open. Maybe if it had a separate active locking mechanism. But I like this simple arrangement of static pins.

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