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

Latest topics

» Ball shooting Crossbows worth the bother
by septua Yesterday at 11:07 am

» my composite crossbow lath project
by stuckinthemud1 Wed Jul 18, 2018 1:35 pm

» Limb harding\ tempering ?
by ragumup Wed Jul 18, 2018 2:03 am

» how made homemade (reverse) crossbow ?
by Ricardo Sat Jul 14, 2018 3:56 pm

» Pump action crossbow (powerful)
by Ivanhoe Fri Jul 13, 2018 7:50 am

» nut from antler
by OrienM Thu Jul 05, 2018 8:50 am

» Wooden Crossbows - Seeking Info
by kenh Sun Jun 24, 2018 8:53 pm

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


    Glued nuts,trigger mechanisms and concepts.

    Share

    Hermit
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 245
    Join date : 2013-09-10

    Glued nuts,trigger mechanisms and concepts.

    Post by Hermit on Tue Oct 01, 2013 11:20 am

    with regard to trigger mechanisms,there seems to be 2 ideas out there that are set in stone.Firstly,that a nut revolves,what it actually does,is pivot.Secondly,that a sear has to engage in a notch,it does'nt,it can release from a rod.If you think of a nut as a lever,designing a trigger mechanism that is easy to build becomes much simpler.If you can visualise a trigger sear that that releases from a rod,it becomes easier yet,as accurately filing a trigger sear and a notch,is difficult,and requires a degree of skill most people may not have.
    Materials:
                Everyone loves a 'deal',and the best deals of all,are freebies.If,like me,you live in a remote area,purchase and acquiring of materials usually involves substantial amounts of time,and not a little money,so become a scrounger,you will be surprised at the a mount of things people throw away,things that contain the materials you need. 
    Tools:
           If you are going to build trigger mechanisms,you are going to require tools,most will be hand tools,which are cheap,and which you may already have.In order to construct a workable trigger mechanism,you will need your own bench small bench vise,and either own,or have access to,a drill press with vise.The accurate sizing and positioning of holes required in trigger mechanism construction is not going to happen with freehand drilling unless you are highly skilled,or extremely lucky!.
                                        This thread has somewhat of a 'scatter gun' approach,but is generally based on what I have read in the threads.If you are not a traditionalist,but are looking to build a working crossbow,I would urge you to think out of the box,doing so will often result in better and easier ways of doing things.I have successfully built a trigger mechanism of the type I have basically described,but lack the tools(as yet),to publish pictures or diagrams on this site.
                    To those members on here who are so obviously highly skilled,I apologise,but as I have said,this thread has a 'scatter gun' approach.
    avatar
    kenh
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 769
    Join date : 2012-08-03
    Age : 70
    Location : Living Aboard a Sailboat in Fort Myers, FL

    Re: Glued nuts,trigger mechanisms and concepts.

    Post by kenh on Tue Oct 01, 2013 12:56 pm

    You're right of course -- a 'roller nut' type action does not have to be a cylinder.  It can be a pivoting bar that is say 1/2" wide x 1/4" thick x 2" long.  I've seen sketches of a Russian designed action that uses that idea, where the bar is 'hollow' and made from very stiff wire.  Not having to have a wheel takes a HUGE hassle out of an action build! 

    Boxes are meant to be thought outside of!
    avatar
    Gnome
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 409
    Join date : 2011-10-16
    Age : 54
    Location : North Georgia

    Re: Glued nuts,trigger mechanisms and concepts.

    Post by Gnome on Tue Oct 01, 2013 4:46 pm

    I've been going over some old threads on the forum dealing with lock mechanisms, since I'm going to take a short foray outside the box myself and do a non-roller nut lock mech for the first time. I don't want to just replicate a modern comercial trigger mech, though, if I wanted that I could just buy one. No, it has to be an original design and somewhat unique. I came pretty quickly to a "pivoting bar" for the string catch, pretty much as you describe, Kenh, and will probably implement that in one form or another.
    Hermit, I'm also a big fan of creative sourcing, and I'd really like to see what you have in the works. So I can steal your ideas, of course! I may post some sketches of what I'm working once I think I have a winner.
    Gnome
    avatar
    hullutiedemies
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 178
    Join date : 2012-07-03
    Location : Fennoscandia

    Re: Glued nuts,trigger mechanisms and concepts.

    Post by hullutiedemies on Wed Oct 02, 2013 2:04 am

    You mean like this

    ?
    avatar
    Todd the archer
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 581
    Join date : 2010-02-25
    Age : 56
    Location : sellersville,pa.

    Re: Glued nuts,trigger mechanisms and concepts.

    Post by Todd the archer on Wed Oct 02, 2013 3:29 am

    Here is one I am working on.




    Todd
    avatar
    Gnome
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 409
    Join date : 2011-10-16
    Age : 54
    Location : North Georgia

    Re: Glued nuts,trigger mechanisms and concepts.

    Post by Gnome on Wed Oct 02, 2013 1:58 pm

    Nice, Todd. You mentioned you were working on an overclaw type modern mech, I was hoping you'd share! I'm working on an overhead design also, but in a bullpup configuration where I'm trying to reduce the number of moving parts to an elegant minimum.
    Gnome

    Sponsored content

    Re: Glued nuts,trigger mechanisms and concepts.

    Post by Sponsored content


      Current date/time is Fri Jul 20, 2018 8:09 am