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

Latest topics

» Nut from a pool que ball?
by drawknife Sun Jun 17, 2018 5:29 am

» my composite crossbow lath project
by stuckinthemud1 Fri Jun 15, 2018 6:07 am

» Trouble with my Gafa
by drawknife Fri Jun 15, 2018 2:56 am

» Do all triggers Have claws - what types and claw or no claw
by globalmark Thu Jun 14, 2018 12:19 am

» For Sale: Masai Crossbow
by TonyU Mon Jun 11, 2018 1:15 pm

» Medieval composite bows
by juanjo Fri Jun 08, 2018 5:10 am

» yew and sinew prod help needed
by stuckinthemud1 Thu Jun 07, 2018 1:34 am

» Small gothic crossbow (with wooden lever)
by OrienM Fri Jun 01, 2018 10:35 am

» Binding on the stirrup
by Geezer Sat May 26, 2018 7:26 am

» horn inlay and veneer
by OrienM Thu May 24, 2018 8:44 pm

» Presentation
by c sitas Wed May 23, 2018 4:31 pm

» My latest crossbow
by drawknife Tue May 22, 2018 3:13 pm

» The Arbalist Guild - Around the World
by stuckinthemud1 Sun May 20, 2018 5:32 am

» angles and rivets
by Geezer Fri May 18, 2018 1:16 pm

» morticed nut blocks
by Dark Factor Wed May 16, 2018 12:02 pm

» Crossbow triggers
by Croftage Mon May 14, 2018 1:41 pm

» Cocking lever
by c sitas Fri May 11, 2018 8:09 am

» Late roman crossbow
by Dark Factor Wed May 09, 2018 10:27 am

» Powermaster Madness
by Archer46176 Sun May 06, 2018 8:08 pm

» Fast loading crossbow
by septua Mon Apr 23, 2018 9:22 am

» lashing a glass prod in raw hide?
by kenh Sun Apr 22, 2018 7:00 am

» Balestra Veloce / Leonardo DaVinci
by msalazar2310 Fri Apr 20, 2018 10:37 am

» Goats Foot Lever
by Geezer Wed Apr 18, 2018 12:42 pm

» Hickory and Ipe 180lb flatbow
by actionbow Mon Apr 16, 2018 1:56 pm

» goat foot questions.
by Geezer Sat Apr 14, 2018 10:26 am


    Wippe lever construction and other simple spanning devices.

    Share
    avatar
    dmanx500
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 8
    Join date : 2013-06-14
    Age : 23
    Location : Barriere, British Columbia

    Wippe lever construction and other simple spanning devices.

    Post by dmanx500 on Tue Sep 29, 2015 6:48 pm

    So after altering my crossbow to fit a 175lb prod, I find I am unable to span it. I have decided that a wippe lever or a rope spanning device would help. Are there any plans or mathematical calculations for making a wippe lever for a 16" draw? Barring that any advice before I take the leap?

    Bs1110101
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 22
    Join date : 2013-09-12

    Re: Wippe lever construction and other simple spanning devices.

    Post by Bs1110101 on Tue Sep 29, 2015 8:46 pm

    16 inches seems like quite a lot, and that at 175lb seems quite powerful. A wippe for that dray length might be slightly on the large side, but i don't see why it wouldn't work. All you need to work out what dimensions to make it to are on the wiki. I'd say go for a wippe rather then a rope cocker as it's easier, faster, and less dumb looking in my opinion at least. Pictures of the bow this is for would be nice as well. 
    avatar
    OrienM
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 155
    Join date : 2014-08-01
    Age : 42
    Location : New Mexico, USA

    Re: Wippe lever construction and other simple spanning devices.

    Post by OrienM on Wed Sep 30, 2015 8:35 am

    The Crossbow Wiki has good instructions for building a wippe. Personally, after building one of each to try I ended up much preferring a rope cocker...easier to build, and far easier to carry (fits conveniently in a pocket! Very Happy). A wippe is large and bulky, IMHO a real hassle to carry and use in the field.

    My bow has a steel cross-pin installed behind the nut to anchor the rope to; it's a fairly "traditional"-looking arrangement and works great. A simple notch in the butt end of the tiller works well, too.

    c sitas
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 474
    Join date : 2012-11-24

    Re: Wippe lever construction and other simple spanning devices.

    Post by c sitas on Wed Sep 30, 2015 8:46 am

    You know, just off the top of my mind,16" sounds like an awful lot of draw for steel. I don't believe I have ever heard of this. If it'll work and stay together, great. I would certainly want a sheath on it though.I make super long draws, but not with steel.
    avatar
    dmanx500
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 8
    Join date : 2013-06-14
    Age : 23
    Location : Barriere, British Columbia

    Re: Wippe lever construction and other simple spanning devices.

    Post by dmanx500 on Wed Sep 30, 2015 5:31 pm

    The crossbow is the same crossbow in my "medieval style crossbow using scavenged materials" thread on this board. The alterations include a reinforced nut and a completely redone fronted end to fit a jaguar 175# fiberglass prod. A this point
    I am just putting to sticks together with multiple holes for adjustment and seeing what happens.

    I will not be able to post new pictures until I have a WiFi connection which might take a few days, this is why I referenced the other thread.

    I was going to make a rope-cocker but my hardware store did not have small enough pulleys. Is buying one and waiting worth it? I will attempt to built a wippe anyway to pass the time.

    c sitas
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 474
    Join date : 2012-11-24

    Re: Wippe lever construction and other simple spanning devices.

    Post by c sitas on Wed Sep 30, 2015 5:50 pm

    For what it's worth,I don't know where you live, wally world has these in the "Allen : brand for a crisp 10 spot.Ready to go . Myself I'd rather have an all metal roller hook. I v'e heard of the plastic types  were breaking,and that's not cool when your under almost full draw. Result, dry fire.
    avatar
    dmanx500
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 8
    Join date : 2013-06-14
    Age : 23
    Location : Barriere, British Columbia

    Re: Wippe lever construction and other simple spanning devices.

    Post by dmanx500 on Thu Oct 01, 2015 10:25 pm

    Well... I made a massive, crude adjustable wippe out of 2x4s. I reniforced the nut and the bridle mounts when I upped the pondage... Shoulda reinforced the crossbow. Goodbye impatiently built cheapo crossbow I barely knew ya Sad

    c sitas
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 474
    Join date : 2012-11-24

    Re: Wippe lever construction and other simple spanning devices.

    Post by c sitas on Sun Oct 11, 2015 5:32 pm

    I just want to mention here that a whippie works very well but----, it loads the stock or tiller quite a bit. If you are near the skinny side ,be careful.
    avatar
    Geezer
    Master Crossbowyer
    Master Crossbowyer

    Posts : 1018
    Join date : 2010-01-12
    Age : 70
    Location : Austin, Texas, USA

    Re: Wippe lever construction and other simple spanning devices.

    Post by Geezer on Mon Oct 12, 2015 9:55 am

    Back in the old days I used to make wippes occasionally.  I eventually worked out a design that hooked onto the prod at the base, rather than the stock, in hopes of reducing the stresses on the prod mounting, but my wippes were still large and clunky looking as well as inconvenient to use.  Nowadays I encourage my customers to either opt for a belt-hook or 'gafa-goatsfoot' lever.  They're much more efficient and elegant, but work best with skinny, parallel stocks.  The fat German stocks are pretty much a no-go.  There were period bows that used cord and pulley as well.  Take a look at Payne-Gallwey's book for that.  Geezer.

    mazawakhan
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 14
    Join date : 2015-11-23

    Re: Wippe lever construction and other simple spanning devices.

    Post by mazawakhan on Sat Nov 28, 2015 9:53 pm


    Here is what I made last year. Its two pieces of Red Oak from Home Depot. There is a little area in the wood section that has a bunch of small hobby size pieces of wood. I added all the adjustment holes down the stock because I had no idea which angle would work the best. It spanned my 190 lb prod with ease. Unfortunately the string was ground onto the top of the crossbow and created furrows. I am making a new crossbow with with a reinforced table. Hope this helps a bit

    c sitas
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 474
    Join date : 2012-11-24

    Re: Wippe lever construction and other simple spanning devices.

    Post by c sitas on Sun Nov 29, 2015 11:18 am

    Mazawakhan; Sounds like maybe the bow is mounted to deep on the stock. I've read where Geezer says the string should just "kiss" the stock. I use your same design, exactly.

    mazawakhan
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 14
    Join date : 2015-11-23

    Re: Wippe lever construction and other simple spanning devices.

    Post by mazawakhan on Mon Nov 30, 2015 2:05 pm

    c sitas wrote:Mazawakhan; Sounds like maybe the bow is mounted to deep on the stock. I've read where Geezer says the string should just "kiss" the stock. I use your same design, exactly.


    I think the string position was fine. What was happening was the wippe was grinding the string into the table when I would span the bow. I plan to reinforce the table on my Mk II with some delrin sheeting that I scored!
    avatar
    Onager Lovac
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 120
    Join date : 2015-06-18
    Age : 27

    Re: Wippe lever construction and other simple spanning devices.

    Post by Onager Lovac on Mon Nov 30, 2015 6:05 pm

    Hello Mazawakhan and welcome to the forum, from what i see in the picture, the adjustment holes in your wippe are to hi, by which i mean far away from the hook, even the lowest one you are using in the picture, having the adjustment holes closer to the hook will give a higher mechanical advantage and reduce the friction between the string and the stock of the crossbow, in exchange for a shorter draw lenght and more movement when spawning the bow.

    Sponsored content

    Re: Wippe lever construction and other simple spanning devices.

    Post by Sponsored content


      Current date/time is Tue Jun 19, 2018 12:52 am