The Arbalist Guild

Would you like to react to this message? Create an account in a few clicks or log in to continue.

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

Latest topics

» 12th Century Chinese Crossbow Chronographed
by stuckinthemud1 Fri Nov 24, 2023 3:50 pm

» Crossbow Stock
by kenh Tue Oct 31, 2023 6:19 am

» Colletiere a Charavines continuing experiment
by stuckinthemud1 Sat Oct 07, 2023 5:36 am

» Cocking - how
by stuckinthemud1 Thu Aug 03, 2023 4:24 am

» Questions around heavy crossbow lath buildin
by stuckinthemud1 Wed Apr 26, 2023 1:10 am

» Arab Crossbow
by stuckinthemud1 Tue Apr 25, 2023 7:57 am

» prod angle, and lever trigger for sale anyone?
by stuckinthemud1 Mon Mar 20, 2023 5:54 am

» flexible string
by jasper1978 Mon Mar 20, 2023 1:25 am

» [solved]Skane/Lillohus crossbow thread
by stuckinthemud1 Sun Mar 19, 2023 7:44 am

» jens sensfelder
by jasper1978 Wed Mar 08, 2023 11:58 pm

» 400lb Windlass crossbow bolts weight and accuracy shooting high.
by stuckinthemud1 Sun Mar 05, 2023 2:53 pm

» Codex Löffelholz crossbow
by stuckinthemud1 Tue Jan 24, 2023 4:14 pm

» Digitar prodsc
by stuckinthemud1 Sun Jan 15, 2023 2:42 pm

» Troubleshooting
by Andy. Fri Jan 06, 2023 12:29 pm

» Wood Prods
by stuckinthemud1 Fri Dec 30, 2022 12:47 pm

» Colletiere a Charavines crossbow
by stuckinthemud1 Fri Dec 30, 2022 8:54 am

» Simplified Löffelhotz speedloader
by stuckinthemud1 Fri Dec 09, 2022 4:05 pm

» Fiberglass H-bows
by c sitas Sat Nov 12, 2022 8:44 am

» Bad Antler
by drawknife Sat Nov 12, 2022 3:48 am

» Anyone make their own bolts?
by Juniper Mon Oct 17, 2022 8:20 am

» Josef alm in English
by Juniper Sat Oct 15, 2022 4:22 am

» Qin/Han lock drawings
by kenh Fri Sep 23, 2022 8:16 pm

» stirrup dimensions?
by stuckinthemud1 Thu Sep 01, 2022 1:49 pm

» Skane/Lillohus lockbow information needed
by stuckinthemud1 Sun Aug 14, 2022 6:23 am

» need help contacting le musee Dauphinois Grenoble
by stuckinthemud1 Sat Aug 13, 2022 3:22 pm


3 posters

    Complex crossbow triggers by Da Vinci

    HeroSK
    avatar
    HeroSK
    Tinkerer

    If there is a will, there is a way.


    TinkererIf there is a will, there is a way.


    Posts : 63
    Join date : 2013-11-27
    Age : 37
    Location : Turkiye
    • Post n°1

    Complex crossbow triggers by Da Vinci Empty Complex crossbow triggers by Da Vinci

    Post by HeroSK Sat Jan 03, 2015 1:21 am

    Hi all,

    I just found this from Codex Madrid dated to 1493.

    Complex crossbow triggers by Da Vinci Da_vin11
    • Back to top
    mac
    mac
    mac
    Master Weaponsmith
    Master Weaponsmith


    Posts : 561
    Join date : 2010-12-23
    Location : Near Philly USA
    • Post n°2

    Complex crossbow triggers by Da Vinci Empty Re: Complex crossbow triggers by Da Vinci

    Post by mac Sat Jan 03, 2015 10:08 am

    Now I am going to say something heretical. 

    The lock on the right will not work as drawn.  There are two problems.  The first is the angle of the locking surface of lever 2 (counting from the nut).  It needs to be less than 90 degrees to the line drawn from the pivot to the face.  This face needs to be a sort of "ramp" so that the motion of lever 1 will cause lever 2 to rotate.  This is a small thing and can be easily adjusted.

    The second problem is more difficult to fix.  The left end of lever 2 must lift the hook in the middle of lever 3.  If we follow the arcs that Leonardo has conveniently provided, we see that it will jam under the hook before it can travel far enough to allow lever 1 to clear the working face of lever 2. 

    If I remember correctly, the text says something about lever 2 "breaking", so I assume the Leonardo realized that there was a problem, but had not gotten around to drawing a fix for it.

    Mac
    • Back to top
    Rizzar
    avatar
    Rizzar
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?


    Posts : 194
    Join date : 2012-08-11
    Location : Germany
    • Post n°3

    Complex crossbow triggers by Da Vinci Empty Re: Complex crossbow triggers by Da Vinci

    Post by Rizzar Sat Jan 03, 2015 12:22 pm

    Hey guys!

    Some time ago I´ve heard about Da Vinci´s drawings.
    It was stated that he was building errors into them to prevent stealing his ideas.

    Old copyright protection^^
    Could be in this case, too.

    Rizz
    • Back to top
    Sponsored content

    Sponsored content


    • Post n°4

    Complex crossbow triggers by Da Vinci Empty Re: Complex crossbow triggers by Da Vinci

    Post by Sponsored content

    • Back to top

      Current date/time is Fri Apr 19, 2024 4:28 am