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

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4 posters

    So close yet so far away...

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    Stonedog
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    Post by Stonedog Sun Jun 16, 2013 12:55 pm

    Well.....when it rains it ours.

    I was working on my latest try....and much to my chagrin, the irons that I have are too small for my prod.

    I have a SB113 prod....and a set of irons from Alchem.  The original Alchem prod that I had was more narrow than my new one from Slobows...

    So, I am SOL.....

    Also, does anyone know a bit that cuts 90 degrees? Meaning for the prod mortise and the hole for the irons????

    I just cannot get it right with a chisel....
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    kenh
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    Post by kenh Mon Jun 17, 2013 6:29 am

    It's not just a bit.  What you want is a Mortise attachment for your table router.  You can also get a Mortise attachment for a drill press.
    jds6
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    Post by jds6 Tue Jun 18, 2013 8:54 am

    Stonedog;
     When ordering bow irons it is best to let them know for what size prod you will be using the irons. 
    Don't really know what happened there, but from my understanding Gary from Slobows makes the prods for Jim at Alchem. Maybe he sent the wrong one.
    If the bow irons are too small for your prod(narrower than the prod) try grinding or filing the inside of the irons where they sit against the prod. That should do the trick, a lot of work but can be done. 
    I had the same problem on my first bow!
    Good luck

    jds6
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    Stonedog
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    Post by Stonedog Tue Jun 18, 2013 9:49 am

    No, I originally had a prod with a 1" center diameter....then ordered a new, heavier prod from Gary, which is larger at the center....

    On the bright side, I will have pretty much what I need for when I build my son's crossbow in a few years!
    Geezer
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    Post by Geezer Tue Jun 18, 2013 10:34 am

    I don't think grinding the bow-irons will help in this case. Gary and Alchem have the same prods, same dimensions... and these days, it looks like Gary makes all of them anyhow.  The wide prods will require the larger bow-irons.  The narrower prods can be fitted with big bow-irons, but may be slightly more secure with the narrow ones (you can use spacers and shims if necessary) I usually order bow-irons to fit specific prods, but if there's some sort of hang-up in delivery, will accept the larger bow-irons for all.  Geezer.
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    Stonedog
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    Post by Stonedog Tue Jun 18, 2013 11:01 am

    I spoke with Gary last night...and ordered the proper irons. He is working on a new style that uses a tommy-bar instead of wedges to keep everything tight!
    Geezer
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    Post by Geezer Tue Jun 18, 2013 11:55 am

    The tommy-bar, with screw-jacks in place of wedges was quite popular from 17th century and later.  I don't us 'em 'cause I concentrate on earlier bows, but the ought to work great and look very good.  Geezer

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