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Crossbows - Everything about Building, Modding, and Using your Crossbow Gear

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3 posters

    Leaf spring prods

    gcostello65
    gcostello65
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    Leaf spring prods Empty Leaf spring prods

    Post by gcostello65 Sun Jul 07, 2013 2:41 pm

    So I am trying to cut out a crossbow prod using an old leaf spring which I cut off of an old Chevy. The only tool I have to cut out the profile however is a 4 1/2" angle grinder. What is the best way to cut out the profile? Is there a technique that works better than simply just going at it? Is patience the only option?
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    Stonedog
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    Post by Stonedog Sun Jul 07, 2013 5:33 pm

    Pick yourself up three cut off wheels for your angle grinder.  The wheels I use to rough out knife blanks are the DeWalt wheels designed for stainless steel....and I use them to cut through 1/4" thick 5160....the steel used in leaf springs.

    Draw your pattern on to the leaf spring.  Cut it out CLOSE to the line, but NOT ON the line....

    Once it is cut out, you will need to then grind it to shape....go slowly and not overheat.....dunking it into water once it is too hot to touch with your bare skin....that way you won't alter the temper on the steel...
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    Post by Gnome Tue Jul 09, 2013 2:00 pm

    I use just such an angle grinder for roughing out steel parts. I concur with all that Stonedog has said, but would add that it helps to work in small sections rather than attempting a big long cut. I usually don't cut on the line at all, but make a series of cuts from the edge toward the line, then cuttiing at an angle to remove chunks and chips of the unwanted material, again staying a safe distance away from the final contour line. I feel I have more control with this method, and since the cuts are usually short there is less danger of overheating the metal between cooling dunks.
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    gcostello65
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    Post by gcostello65 Wed Jul 10, 2013 11:52 pm

    Thanks for all of the advice! I just finished roughing out the shape and although it looks slightly lop sided, it bends well and shows no signs of breaking. Very Happy

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