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

Latest topics

» GLOSSARY OF TERMS
by White Oak Yesterday at 2:19 pm

» Reverse draw "compound" build
by FrenckBrambo Yesterday at 6:18 am

» Prod specs
by White Oak Yesterday at 4:23 am

» Crusader crossbow
by c sitas Mon May 22, 2017 8:48 am

» The Arbalist Guild - Around the World
by White Oak Mon May 22, 2017 4:03 am

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

» Need to locate Windlass Crossbow, pre 1600, in Rome, Venice, or Florence
by Vincenti Thu May 18, 2017 7:18 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

» The Road so far......
by Onager Lovac Tue Apr 25, 2017 4:07 pm

» Its good to be back!!
by Juan galeano Tue Apr 25, 2017 9:31 am

» The crossbow...What is?!
by octavioaugusto.oliveira Sat Apr 22, 2017 2:07 pm

» I need your advices on a new crossbow project
by Daniel Levesque Fri Apr 21, 2017 12:58 pm

» Guidance Designing My First Slinger
by kenh Thu Apr 13, 2017 8:17 pm

» New member
by harry6855 Thu Apr 13, 2017 8:28 am

» Chinese style crossbow trigger 3d modeled with templates.
by Bs1110101 Thu Apr 13, 2017 6:14 am

» Berkhamsted Castle and Glasgow Museum wooden prod crossbow
by hullutiedemies Wed Apr 12, 2017 8:52 am

» Hello from Asia
by Daniel Levesque Wed Apr 12, 2017 6:49 am

» Medieval crossbow modeled in Tinkercad, with variant trigger design.
by Bs1110101 Mon Apr 10, 2017 1:42 pm

» New project"s"
by kenh Sun Apr 09, 2017 2:38 pm

» New member here!
by c sitas Thu Apr 06, 2017 7:49 am

» Fixing a bad delflex
by Daniel Levesque Tue Apr 04, 2017 11:13 am

» H L Bailey Plans
by ora8i Sun Apr 02, 2017 1:49 am

» Top of Crossbow (launch?)
by Geezer Thu Mar 30, 2017 9:41 pm


    Two Questions

    Share
    avatar
    kenh
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 700
    Join date : 2012-08-03
    Age : 68
    Location : Living Aboard a Sailboat in Fort Myers, FL

    Two Questions

    Post by kenh on Tue Mar 12, 2013 10:36 am

    1. Any reason why, if I use a a wippe as a cocking aid, that I cannot use a heavy cord loop at the nose of the tiller rather than a shackle as per Payne-Gallwey?

    2. I see two ways to mount a prod --
    A. slot on top of the tiller with some sort of tension/holding screw; and
    B. Classic slot in the end of the tiller with the prod held in by irons or binding. Advantages/disadvantages of the "top slot" vs traditional "end slot"?
    avatar
    septua
    Tinkerer

    If there is a will, there is a way.


    TinkererIf there is a will, there  is a way.

    Posts : 61
    Join date : 2012-12-02
    Age : 79
    Location : Ohio

    Re: Two Questions

    Post by septua on Tue Mar 12, 2013 4:47 pm

    kenh


    1) If the cord itself is strong enough and can swivel it
    still needs an anchor point that doesn’t abrade it. A cord anchored at 2 points
    “loop” is a must. I use a wippe and a
    front swiveling metal loop. The wippe is useful if you are doing a lot of
    shooting. When I latch the string the metal loop swings up to about 30° above
    horizontal. Design the wippe so it latches the string to a constant lateral
    position.


    2a) Advantages: ?


    Disadvantages: Non-Traditional


    sep
    avatar
    kenh
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 700
    Join date : 2012-08-03
    Age : 68
    Location : Living Aboard a Sailboat in Fort Myers, FL

    Re: Two Questions

    Post by kenh on Tue Mar 12, 2013 7:35 pm

    Problem I'm having with the loop is that I can't find a shackle with a wide enough throat -- I'd have to cut away a huge width of the tiller to fit it. I have no metalworking abilities or equipment to make a sufficiently strong metal loop; so I'm stuck with 'off the shelf' bits & pieces. I can drill a hole transversely through the tiller, re-inforce the hole with metal tubing, and use a cord loop - something like parachord in strength.

    I'm not terribly worried about tradition for the prod slot. The whole build is a melange of historic and modern. The prod is "Chinese" loose laminates -- of heavy fiberglass, the action is a pin-lock but with a deldrin pin, the tiller is in the shape of a 16th century harquebus stock.
    avatar
    septua
    Tinkerer

    If there is a will, there is a way.


    TinkererIf there is a will, there  is a way.

    Posts : 61
    Join date : 2012-12-02
    Age : 79
    Location : Ohio

    Re: Two Questions

    Post by septua on Tue Mar 12, 2013 9:43 pm

    kenh
    The sleeve with cord idea is workable. The outcome can be elegant looking. You may need to put a wide hook, or even a pair of hooks at the front of the wippe so the cord will clear the tiller when it swings up.
    sep
    .


    Last edited by SEPTUA on Tue Mar 12, 2013 9:44 pm; edited 1 time in total (Reason for editing : added name)
    avatar
    hullutiedemies
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 175
    Join date : 2012-07-03
    Location : Fennoscandia

    Re: Two Questions

    Post by hullutiedemies on Wed Mar 13, 2013 5:42 am

    kenh wrote:1. Any reason why, if I use a a wippe as a cocking aid, that I cannot use a heavy cord loop at the nose of the tiller rather than a shackle as per Payne-Gallwey?

    That smaller hemp loop behind the yute stirrup is for whippe



    This bow was originally intented to be used with a whippe, and was succesfully tested with one. But it soon became obvious that for a small 100# bow bare fingers and stirrup is more practical so I have not bothered to document the whippe.
    avatar
    kenh
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 700
    Join date : 2012-08-03
    Age : 68
    Location : Living Aboard a Sailboat in Fort Myers, FL

    Re: Two Questions

    Post by kenh on Wed Mar 13, 2013 6:44 am

    Thanx guys.

    Nerd - I'm sure your wippe was paleo-legal as well, right? Forked branches and lashings rather than a pivot bolt...
    avatar
    hullutiedemies
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 175
    Join date : 2012-07-03
    Location : Fennoscandia

    Re: Two Questions

    Post by hullutiedemies on Fri Mar 15, 2013 10:07 am

    Yep . Pivot axle was just bundle of flax thread spanned accross wide deep fork.

    Sponsored content

    Re: Two Questions

    Post by Sponsored content


      Current date/time is Wed May 24, 2017 1:59 am