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

» 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


4 posters

    First Time Crossbow Building Questions

    avatar
    Arden727
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows


    Posts : 1
    Join date : 2016-12-26

    First Time Crossbow Building Questions Empty First Time Crossbow Building Questions

    Post by Arden727 Mon Feb 20, 2017 9:06 am

    I have always been a fan of crossbows, often preferring them over bows in games. I have decided that it would be interesting and awesome to actually build and have one. As for the crossbow I want to create something that is detailed for display but still has a decent force. I want to make a steel prod crossbow that can put out 250-300 pounds of force. 

    My question is what the dimensions of the prod should be as well as how far back the string would have to be pulled with said prod to achieve the amount of force. I have tried to find a formula to solve this myself but have been unable to figure anything out. Also it would be nice to know what kind of string would be suggested. Beyond this though I feel the rest would be much easier to figure out. Alternatively if someone has schematics for a steel crossbow that will reach 250-300 pounds of force that would be greatly appreciated. If you think purchase of a premade prod would be better, then I will gladly take a look at links to those as well.

    Also as for loading mechanism I am assuming goats foot lever would be good for this amount of force?
    Daniel Levesque
    Daniel Levesque
    Tinkerer

    If there is a will, there is a way.


    TinkererIf there is a will, there  is a way.


    Posts : 65
    Join date : 2016-12-06
    Location : Quebec, Canada

    First Time Crossbow Building Questions Empty Re: First Time Crossbow Building Questions

    Post by Daniel Levesque Mon Feb 20, 2017 11:30 am

    Dan here,

    First of all, welcome to the forum. I'm quite new here as well but people here have been a great help. For the prod, there are a couple of sellers I know of. There's Slobows : http://www.slobowscrossbows.com/

    Also Alchem : http://www.alcheminc.com/crossbow.html   (although I heard that you have to be petient when ordering there

    Tod's stuff in the UK : www.todsstuff.co.uk/crossbows/crossbows.htm

    There's Darkwood armory that sells crossbows as well but I'm not sure if they sell just prods.

    So, unless you have some skills and knowledge in metal working and also access to a metal shop, I'd stongly suggest you stick with already made prod or try your hands on a wooden prod (you won't get as much draw weight though). I am on my first build as well, neraly completed. Beware though, building these shooters are addictive and I find myself with countless other projects in mind.

    For the string, here's a useful link : http://crossbow.wikia.com/wiki/Making_simple_endless_loop_strings

    Again, welcome to the guild ! Cheers !
    Basilisk120
    Basilisk120
    Moderator
    Moderator


    Posts : 548
    Join date : 2010-03-01
    Age : 43
    Location : Arizona

    First Time Crossbow Building Questions Empty Re: First Time Crossbow Building Questions

    Post by Basilisk120 Wed Feb 22, 2017 11:50 am

    As for how far back to get that force, that depends on the prod.  Some will have a shorter length and other a longer draw length.  Unlike longbows and recurves there is not a standard draw length at which the pull weight is posted.  This is also an important consideration in that a longer draw length at a lower weight can have as much or more stored energy then a heavy prod at a short draw length. 

    And of course welcome.



    Something Something Dark Side
    avatar
    c sitas
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!


    Posts : 547
    Join date : 2012-11-24

    First Time Crossbow Building Questions Empty Re: First Time Crossbow Building Questions

    Post by c sitas Wed Feb 22, 2017 8:50 pm

    Good thinking Basi. Your right on here . To start ,you have all these thoughts to,put into your "pot", so to speak.When starting out there are a lot of points to consider. It's a double edge sword also. Not hard to do but, too bad if you make the wrong pick. You'll either smile ,or, grump. Take time ,research , research , and some more.Pick out one or two of the pros here and talk . Take your time , that's the only thing that don't cost much.Being on this site is one of the bargins now days.A stranger has access to an amazing group of people located here.

    Sponsored content


    First Time Crossbow Building Questions Empty Re: First Time Crossbow Building Questions

    Post by Sponsored content


      Current date/time is Wed Nov 30, 2022 7:30 pm