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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
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

» Colletiere a Charavines crossbow
by stuckinthemud1 Sun Oct 16, 2022 3:39 pm

» 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

» Low Draw Weight Build
by stuckinthemud1 Fri Aug 12, 2022 3:09 pm

» Trigger testing Rig/Jig?
by ora8i Fri Aug 12, 2022 1:13 pm

» 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 posters

    Reverse Draw

    Hotspur
    Hotspur
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?


    Posts : 150
    Join date : 2012-06-28
    Location : British Columbia, Canada

    Reverse Draw  Empty Reverse Draw

    Post by Hotspur Fri Feb 15, 2013 9:40 am

    What do people make of this design? Strengths, weaknesses?

    I like the longer draw, and the compact dims.

    Here is one example, the Scorpyd...

    https://www.youtube.com/watch?v=E1FuK7NmEtc

    Thinking about my next build...
    avatar
    MRobin
    Tinkerer

    If there is a will, there is a way.


    TinkererIf there is a will, there  is a way.


    Posts : 67
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    Age : 33
    Location : Paris, France

    Reverse Draw  Empty Re: Reverse Draw

    Post by MRobin Fri Feb 15, 2013 12:54 pm

    This is a great design, even with pretty cheap materials I achieved good efficiency with my prototype (https://thearbalistguild.forumotion.com/t774-compound-project). Same arrow speed with a 35# draw weight, as a modern recurve bow drawing 10 pounds more. The main weakness of these reverse crossbows is that you need a cocking device even for relatively low poundages, due to the sharp string angle. The Scorpyd is definitely not the most easy to cock.
    Hotspur
    Hotspur
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    Workshop SavvyDid you see my tool collection?


    Posts : 150
    Join date : 2012-06-28
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    Reverse Draw  Empty Re: Reverse Draw

    Post by Hotspur Fri Feb 15, 2013 11:31 pm

    MRobin, I like your design.

    I am thinking of using Power-Tuff from http://www.binghamprojects.com for the limbs.

    Hotspur
    Hotspur
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    Workshop SavvyDid you see my tool collection?


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    Reverse Draw  Empty Re: Reverse Draw

    Post by Hotspur Thu Feb 21, 2013 10:42 am

    If a person was going to borrow something akin to the Scorpyd design for a home build, with a draw weight in the range of 160lbs or so, would a cast aluminum riser be strong enough? I understand there are a lot of variables in casting, just wondering if this is a viable idea.

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    Reverse Draw  Empty Re: Reverse Draw

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