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

Latest topics

» Crossbow with built in lever?
by kenh Today at 6:21 am

» Chinese crossbow with auxiliary string?
by stm2010 Mon Jun 26, 2017 9:48 am

» 15th century saxon prods
by Geezer Mon Jun 26, 2017 7:34 am

» Yet another one
by jocky Sun Jun 25, 2017 7:09 am

» Crusader crossbow
by c sitas Thu Jun 22, 2017 9:41 pm

» Whamo showed up, prod replacement ideas
by kenh Mon Jun 19, 2017 4:25 pm

» Renaissance Sporting crossbow
by tony a Mon Jun 19, 2017 2:10 am

» loose laminate issues
by c sitas Sun Jun 18, 2017 8:42 am

» Of Bows and Torsion Engines
by c sitas Fri Jun 16, 2017 2:55 pm

» My second crossbow
by Daniel Levesque Fri Jun 16, 2017 10:48 am

» Need to locate Windlass Crossbow, pre 1600, in Rome, Venice, or Florence
by 8fingers Tue Jun 13, 2017 11:24 pm

» Crossbow Projectiles
by Geezer Tue Jun 13, 2017 8:10 pm

» Greetings!
by OnlyHuman Mon Jun 12, 2017 7:40 am

» Anyone know what this is?
by Yuki23emma Sun Jun 11, 2017 2:54 pm

» Prod specs
by Onager Lovac Mon Jun 05, 2017 4:25 pm

» Finished Crossbow
by kenh Sat Jun 03, 2017 8:34 pm

» The Arbalist Guild - Around the World
by Turnigy Fri Jun 02, 2017 1:25 pm

» Reverse draw "compound" build
by Turnigy Fri Jun 02, 2017 1:20 pm

» Casting Resource
by White Oak Wed May 31, 2017 2:28 am

» The Road so far......
by White Oak Mon May 29, 2017 7:17 am

» GLOSSARY OF TERMS
by Onager Lovac Wed May 24, 2017 6:41 pm

» Hello from Maine
by White Oak Sun May 21, 2017 11:06 pm

» Leonardo Da Vinci string with suport-rolls
by Oppenheimer Tue May 16, 2017 11:40 am

» Compact repeating compound project
by Phil Abrahams Mon May 08, 2017 2:10 pm

» Trying to reduce the power stroke in my next project
by octavioaugusto.oliveira Thu Apr 27, 2017 1:27 pm


    A little bit of help

    Share

    primuspilus
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 2
    Join date : 2012-08-15

    A little bit of help

    Post by primuspilus on Wed Aug 15, 2012 3:30 am

    Hello....I'm new here and I've decided to build a medieval like crossbow. So far I've made the bow using a spring steel leef from a car. It is 72 cm. long, 4 cm. wide at the midlle and 2 cm. at the nocks. The steel is 4mm.thick. I've drown it at 200lbs. with a draw length at 15" using my archery tillering tree. My questions are: It is safe? I'm planning to use a simple(medieval) trigger mechanism with a roller nut and a trigger. The grip..can be made a little curved(like a modern era pistol)? I've once shot a medieval crossbow and even if it is very cool I find it difficult to shoot from the shoulder (the stock being straight). Can I make the nut out of ipe wood instead of steel?? I hardly wait for your answers...thank you....


    By mihainicolescu at 2012-08-15


    By mihainicolescu at 2012-08-15


    By mihainicolescu at 2012-08-15
    avatar
    jds6
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 197
    Join date : 2011-10-18
    Age : 54
    Location : Dallas,TX

    Re: A little bit of help

    Post by jds6 on Wed Aug 15, 2012 6:38 am

    Greetings, welcome to the forum.
    Ipe wood is a very dense hardwood from Brazil. It is used widly for decking due to its durability and life(25 years outside). I am no expert on wooden roller nuts but have made a couple from walnut. So I guess if your able to work and shape the nut and fingers it may just work. Maybe someone on the forum with more experience will respond. Good luck, and thanks for the pics. By the way, what kind of wood are you using for the tiller?

    kfs6
    avatar
    Todd the archer
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 581
    Join date : 2010-02-25
    Age : 55
    Location : sellersville,pa.

    Re: A little bit of help

    Post by Todd the archer on Wed Aug 15, 2012 3:03 pm

    I have made several nuts from Walnut. I have made mine 1 1/2" wide this is some what wider than usual. I have used them on crossbows with 150 pound prods. The main thing is to make it with the grain running vertical (when in the cocked position) for strength.





    Todd
    avatar
    mac
    Master Weaponsmith
    Master Weaponsmith

    Posts : 560
    Join date : 2010-12-23
    Location : Near Philly USA

    Re: A little bit of help

    Post by mac on Fri Aug 17, 2012 8:56 am

    Primus,

    The medieval crossbow is shot from the cheek, rather than from the shoulder. Crossbows have very little recoil, so there is no need to brace them against the shoulder.

    Grab the tiller with your thumb on top. Place your thumb under your cheek bone.

    Mac
    avatar
    Kale Schlegel
    Tinkerer

    If there is a will, there is a way.


    TinkererIf there is a will, there  is a way.

    Posts : 75
    Join date : 2012-08-14
    Age : 24

    Re: A little bit of help

    Post by Kale Schlegel on Fri Aug 17, 2012 12:48 pm

    Just make sure , for wear and tear, for that pound of crossbow you're going to have to put in a little piece of steel where the trigger connects to the nut (Todd the archers picture above).That's if you didn't know that already , but I digress...

    primuspilus
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 2
    Join date : 2012-08-15

    Re: A little bit of help

    Post by primuspilus on Sun Aug 19, 2012 12:37 am

    thank you for your help. 15inch of draw lenght is safe for my bow lenght? Is there any relation ship betewn the draw lenght and the dimensions of the bow?

    Tehartificer
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 5
    Join date : 2012-08-14

    Re: A little bit of help

    Post by Tehartificer on Sun Aug 19, 2012 7:43 am

    At least as far as traditional bows are concerned, a well tillered bow should draw to approximately half it's total length. 15 inches would probably be pushing things, but having not completed my first crossbow, I can't really say if this rule would apply.
    avatar
    Kale Schlegel
    Tinkerer

    If there is a will, there is a way.


    TinkererIf there is a will, there  is a way.

    Posts : 75
    Join date : 2012-08-14
    Age : 24

    Re: A little bit of help

    Post by Kale Schlegel on Tue Aug 21, 2012 5:38 pm

    One thing to take into account is the width of the crossbows body. Say those generic 150 lb limbs, on Jasonwemp's videos he stated it was harder to draw back because the limbs were designed for a 1-3/4"? thick crossbow and his was thicker, resulting in a harder pull.

    Sponsored content

    Re: A little bit of help

    Post by Sponsored content


      Current date/time is Wed Jun 28, 2017 9:44 am