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

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+3
Hotspur
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    What I have done last week...

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    Rizzar
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    Post by Rizzar Sun Jul 21, 2013 8:02 am

    Hey Guys!

    This is what I have produced the last couple of days.

    Tiller of two oak planks, nut of polyamide with reinforced trigger-rest, selfmade prod (my lightest I finally got rid of) ~140lbf at 12inch of draw.
    Thread of hemp covered with bee´s wax, string 40 strands bcy 55, sideplates, trigger and stirrup made of mild steel, bolt clamp is copper, some brass here and there.


    Design oriented on spanish style but not forced to any known regulations.


    Hope you like the pictures:
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     Greetings, Rizzar
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    Post by jeep Sun Jul 21, 2013 9:35 am

    Good and elegant work! Is it nice to shoot with it, fast flying bolt?
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    Post by Hotspur Sun Jul 21, 2013 9:50 am

    Nice pleasing lines.  It looks like that middle brass screw goes into the nut?
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    Post by Rizzar Sun Jul 21, 2013 11:04 am

    Thx

    The bolts I shot so far flew very fast, I think the lightweight nut gives its benefit into shot behavior.

    The middle brass screw holds an axle the nut is secured with. Normally I would say the nut runs on that axle, but in fact with this crossbow the nut is more running on its outside in the tiller.
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    Post by backgardenbowyer Sun Jul 21, 2013 12:40 pm

    Excellent work - I like the simplicity.  Did you make the steel rod yourself?
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    Post by Rizzar Mon Jul 22, 2013 12:56 am

    I made everything myself except those little screws you can see.

    Making the prod was long and hard work with much theory involved.
    Special spring steel was cut and bent by myself and tempering for security reasons was done by specialists.

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    Post by jeep Mon Jul 22, 2013 1:33 am

    How do you shape the trigger lever ? In one piece or do you weld ? Do you use forge for this ?
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    Post by Rizzar Mon Jul 22, 2013 1:57 am

    The trigger was cut out in L-form from flat steel, the head rough grinded, drilled and then bent in a propane forge.


    I made the "knee" by cutting into the metal and bending a sharp edge in opposite direction.
    Fire welding, though I tried it, did not work out because my propane forge for bigger things doesn´t get hot enough so I had to do some arc welding to make a proper fit (hard-soldering would have worked out, too).


    After all, I could have done it completely by forging out of a straight rod since I had to correct it a couple of times when fitting it into the tiller.

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    Post by Todd the archer Mon Jul 22, 2013 2:10 am

    Great job!

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    Post by ZigiMan Thu Jul 25, 2013 8:48 am

    Great work Rizzar!
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    Post by archaic.archer Fri Aug 09, 2013 1:36 pm

    That looks awesome, very nice.   Thanks for sharing.

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