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

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» Troubleshooting
by Cscott Tue Nov 15, 2022 11:55 am

» Fiberglass H-bows
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» Bad Antler
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» Anyone make their own bolts?
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» Colletiere a Charavines crossbow
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» Josef alm in English
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» Qin/Han lock drawings
by kenh Fri Sep 23, 2022 8:16 pm

» stirrup dimensions?
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» Skane/Lillohus lockbow information needed
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» need help contacting le musee Dauphinois Grenoble
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» Low Draw Weight Build
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» Trigger testing Rig/Jig?
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» best type of horn to use..
by stuckinthemud1 Fri Jun 24, 2022 6:13 am

» Han Dynasty Chinese Crossbow
by hullutiedemies Fri Jun 17, 2022 1:00 pm

» Drawing of Crossbow
by stuckinthemud1 Fri Jun 03, 2022 3:01 am

» "How To Make Everything": Early Crossbow
by stuckinthemud1 Thu Jun 02, 2022 3:41 am

» Black inlay
by stuckinthemud1 Fri May 13, 2022 3:18 pm

» Roller nut details
by drawknife Thu Apr 21, 2022 2:44 pm

» 330#/7" wood bow
by Anatine Duo Tue Mar 29, 2022 11:08 am

» starting a 1400's replica
by stuckinthemud1 Thu Feb 24, 2022 1:26 pm

» 18th century German crossbow reproduction
by Fangbows Sun Feb 20, 2022 7:15 am

» replacement for baleen?
by tghsmith Mon Jan 17, 2022 9:30 am

» Medieval crossbow finished
by stuckinthemud1 Wed Jan 12, 2022 3:05 pm

» Trigger mechanisms
by stuckinthemud1 Mon Jan 03, 2022 10:23 am

» Finish wooden stock
by stuckinthemud1 Sat Dec 25, 2021 9:06 am


+2
kenh
stm2010
6 posters

    Chu Ko Nu (Zhu ge nu) chinese repeating crossbow making process from china

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    stm2010
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    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china Empty Chu Ko Nu (Zhu ge nu) chinese repeating crossbow making process from china

    Post by stm2010 Mon Jul 18, 2016 12:31 am

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 0e352a12
    Whole profile



    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china F22b3612
    Left hand holding section

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china Ee840112
    Dragon head with four teeth


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    Cocked state 

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china Ecccd712
    Crossbow body and the section for holding the bamboo bow.

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 934b0b12
    Two cloud shaped plates prevent the horizontal displacement of magazine 

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 5d1ea313
    bolts materials

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 95552212
    The iron head of bolts

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china Fabb4412


    The end of bolts are  cross shape curved. It will help the string hit the center line of bolt.

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china D3e89211
    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 4a4d9a11
    A top plate can pull out and push into the magazine, help prevent the jumping of bolts.




    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china C1caaf12
    Drill a hole for insert the trigger (Top is wider than below.)

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    Insert the trigger pin.

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china Bd16cb11
    Cut out a shallow path for bolts


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    The boundary slot for holding string is curved out to a "U" shape.

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 6e908e11
    Using round chisel to cut the barrel

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    Check and test the hitting 

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 60becf11
    Cut out room for stacking bolts

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china D33ba911
    Hold the two pieces together

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 9b2b9511
    Insert a short stick into the mouth of dragon prevent the sliping out the bolt while carrying.


    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 5d1ea314
    Design the operation lever. (need  adjustments )

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 839db012
    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 68a8d212
    Using cheap bamboo as bow

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china F7eae212
    Polishing the bamboo bow


    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 3ae19b12
    Two piece bamboo plates tie together.


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    Curve out the dragon head.

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    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china F531bb11
    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 414f4d11
    Using a littel magnet under the  iron head of bolt avoid sliping.


    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china D8177911
    Making string


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    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china Ac164911

    Assemble and painting.
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    stm2010
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    Post by stm2010 Mon Jul 18, 2016 12:42 am

    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 5f77ff10
    As can be seen above, the red arrow head line means the force of string F1 and hand operate force F2, L2 is about 10 times of L1. That means if the bow is 200 pound when full cocked,the operate force may one tenth of bow (20 pound). This result is very intersting since the proportion of cock lever is changed during operating.  


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    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china 8919d210
    Chu Ko  Nu (Zhu ge nu) chinese repeating crossbow making process from china Add0b510

    Little Chu ko nu model
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    kenh
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    Post by kenh Mon Jul 18, 2016 5:38 am

    Very nice tutorial!  And beautifully done Dragon Bow!
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    Post by Gnome Tue Jul 19, 2016 5:22 am

    Very nice indeed! One of these days...
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    Post by c sitas Fri Jul 22, 2016 8:07 am

    Very good posting . Very clear. Would you have any idea as to how many man hours it takes to make it?In real action ,you can see how very deadly it could be.Thanks for your effort in this.
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    Post by actionbow Fri Nov 25, 2016 12:20 pm

    Love the magnet idea! I use two little brushes at the muzzle but this is much better.
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    Post by El Zurdo Fri Nov 25, 2016 2:51 pm

    Very nice work, I also love the idea of magnets to keep the bolt plated and the end of bolts in cross shape curved. 

    I maked a Chu Ko Nu dragon 5 years ago but on a smaller scale 1/4. Mine was ebony and boxwood carved with a multi-bamboo bow.
    It always works perfectly.


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