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

Latest topics

» New crossbow builder
by wjbates1430 Today at 4:58 pm

» Medieval bowyer
by kenh Today at 3:55 pm

» Airsoft Crossbow-Finished at Last!
by JacobL Thu Oct 12, 2017 7:27 pm

» Powermaster Madness
by c sitas Wed Sep 27, 2017 8:41 am

» Powermaster
by c sitas Wed Sep 20, 2017 9:58 am

» Best wood for a novice?
by Geezer Sun Sep 17, 2017 9:21 am

» Adding a steel sear insert?
by Geezer Fri Sep 15, 2017 7:13 am

» Great Machines
by c sitas Sat Sep 09, 2017 5:39 pm

» Medieval Crossbow Bolts DIY Question
by Rumburak Thu Sep 07, 2017 12:17 pm

» Berkhamsted Castle and Glasgow Museum wooden prod crossbow
by Juniper Fri Aug 25, 2017 3:54 pm

» Beware of Alchem
by Archer46176 Mon Aug 21, 2017 3:33 pm

» How to measure and cut leather for prod
by Celtic Archer Sun Aug 20, 2017 5:56 pm

» Crossbow with built in lever?
by John Edgerton Thu Aug 17, 2017 12:38 pm

» Of Bows and Torsion Engines
by JacobL Mon Aug 14, 2017 12:03 pm

» Early Lever and pin Crossbow
by topfmine Mon Aug 14, 2017 8:56 am

» Crusader crossbow
by topfmine Mon Aug 14, 2017 8:53 am

» First Efforts
by rickraedeke Tue Aug 08, 2017 5:25 am

» aluminum prod
by Phil Abrahams Fri Aug 04, 2017 8:38 am

» First whitetail buck taken with medieval crossbow
by Phil Abrahams Fri Aug 04, 2017 3:38 am

» Airsoft Crossbow
by JacobL Wed Aug 02, 2017 9:11 pm

» Questions about steel prod specs
by JacobL Mon Jul 31, 2017 8:25 pm

» Faking a medieval composite crossbow prod.
by JacobL Mon Jul 31, 2017 8:13 pm

» Airsoft Bow
by JacobL Sun Jul 30, 2017 1:56 pm

» Hello All!
by JacobL Sun Jul 30, 2017 12:54 pm

» Padre Island Bow
by Geezer Wed Jul 26, 2017 12:14 pm


    Rat-Trap Springs

    Share

    PierreC
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 32
    Join date : 2013-07-26

    Rat-Trap Springs

    Post by PierreC on Thu Aug 08, 2013 11:49 pm

    My local surplus place had a nice deal on some pretty sturdy rat traps.  I picked up two to scavenge the springs out of them...  They call out to me to make some sort of torsion bow.  The traps have two springs in each, wound in opposite directions.  

    I'm thinking of making a sturdy frame to house all four springs, allowing me to adjust the pre-load, and the initial angle that the springs start moving at.

    I'll try to hack up a quick drawing.
    avatar
    actionbow
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 125
    Join date : 2012-09-18

    Re: Rat-Trap Springs

    Post by actionbow on Fri Aug 09, 2013 7:56 am

    Make it an inswinger and you will defeat the relatively slow recovery time of steel with a better f/d curve.

    PierreC
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 32
    Join date : 2013-07-26

    Re: Rat-Trap Springs

    Post by PierreC on Fri Aug 09, 2013 11:54 pm

    Part of why I want to put the springs into a module is so I can bolt up a generic lock and sear module, and mount the parts onto a chunk of unistrut or telspar.  Then I can re-configure from in-swinger to out-swinger, or put together a different prod or spring stack and compare the results.

    I'm going to have to build a ballistic pendulum...
    avatar
    Gnome
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 404
    Join date : 2011-10-16
    Age : 53
    Location : Capitol Area Maryland

    Re: Rat-Trap Springs

    Post by Gnome on Sat Aug 10, 2013 6:23 am

    This sounds interesting! Get started. Post pictures.
    Gnome

    Sponsored content

    Re: Rat-Trap Springs

    Post by Sponsored content


      Current date/time is Mon Oct 16, 2017 10:04 pm