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

Latest topics

» How to make a slurbow?
by banuvatt Today at 12:08 pm

» Compound twinbow pistol (posts vs pulleys)
by c sitas Fri Jul 19, 2019 7:10 pm

» Contact details of steel prod makers
by Geezer Thu Jul 18, 2019 12:24 pm

» Seal lath bindings, what to use?
by banuvatt Sat Jul 13, 2019 7:33 am

» measuring speed
by stuckinthemud1 Sat Jul 13, 2019 4:31 am

» installing a tickler
by Geezer Fri Jul 12, 2019 7:25 am

» birch bark covering
by stuckinthemud1 Fri Jul 05, 2019 9:27 am

» thank you n hope to learn in this forum
by kenh Mon Jun 17, 2019 5:01 am

» Red Oak Board (x)Bow.
by banuvatt Sun Jun 16, 2019 10:20 am

» New member intro and couple of questions
by Wildtech Mon Jun 03, 2019 6:46 am

» best way of spanning a 200+lb bow
by stuckinthemud1 Fri May 31, 2019 3:31 am

» where to find antler for nut construction
by victortkz Sat May 25, 2019 10:47 am

» Steel prod - unknown draw weight
by Cornerstone Sat May 25, 2019 3:07 am

» making a reproduction of a 15th century cranequin
by victortkz Fri May 03, 2019 3:51 am

» can you point me in the direction of a post on nut-making
by kenh Sun Apr 28, 2019 5:09 am

» Chinese Han Dynasty Crossbow 300lbs 20" powerstroke
by Geezer Thu Apr 25, 2019 11:56 am

» My latest crossbow creation, the Vanquish
by MPDVM Sun Apr 21, 2019 5:50 pm

» Steel prod on a crossbow
by c sitas Sun Apr 21, 2019 8:33 am

» robin allen crossbow for sale or trade
by elkhunter Sat Apr 20, 2019 5:47 pm

» man made material for reinforced socket
by 8fingers Sat Apr 20, 2019 12:36 pm

» Dimension help
by kenh Mon Apr 15, 2019 5:15 am

» how do I finish a mixed material tiller
by stuckinthemud1 Fri Apr 12, 2019 9:55 am

» All metal Self Loading Crossbow Build Information needed
by Wildtech Fri Apr 05, 2019 6:01 am

» hello! introductions
by kenh Sun Mar 31, 2019 5:31 pm

» Brand new Demon crossbow
by Phil Abrahams Sat Mar 30, 2019 4:33 am


    Side plates and axle pin?

    avatar
    fester
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 32
    Join date : 2017-08-18
    Location : South sheilds, england

    Side plates and axle pin? Empty Side plates and axle pin?

    Post by fester on Fri Mar 22, 2019 11:47 am

    I want my next build to have side plates. What's the best method of attaching an axle pin? I'm thinking of threading one side with a 4mm tap then screwing a mild steel 4mm bolt through sticking out about 3 mm. I'm then going to heat the stub and hammer it flat like a rivet to finish the external side. The roller nut will slide over the bolt with just 2-3mm protruding so when I fit the second plate the bolt will sit in a divet hole on the inside of the plate. I'm sure this will work But I do notice some builds (Geezers) with no evidence of an axle pin. Am I missing a far simpler/ better method?
    Geezer
    Geezer
    Master Crossbowyer
    Master Crossbowyer

    Posts : 1106
    Join date : 2010-01-12
    Age : 71
    Location : Austin, Texas, USA

    Side plates and axle pin? Empty Re: Side plates and axle pin?

    Post by Geezer on Fri Mar 22, 2019 5:01 pm

    Geezer here: on bows without metal lockplates (leather, horn, wood, whatever) in the central European style, I secure the nut with a 'nussfaden' bridle of cord. It looks like some bows may have used a piece of malleable wire, or cable strung thru the nut (roller) and tied in place with cord.  Bows with metal lockplates, I ususally fit a bit of brass wire thru the roller, thru the sides of the socket and held in place with the lockplates themselves. Sometimes I use two brass escutcheon pins (preferably 16 gauge) pushed thru from both sides.  The point is to keep the roller from falling out... but the wire or pins are not intended to bear any load.  The original Padre Island bow (Spanish @ 1500) has an axle hole thru the roller but there is no sign of a keeper-pin, wire, cord.... nothing at all, and no hole to accept one.  If the socket is a fairly close fit, and deep enough (2/3 of the roller-diameter) the nut should stay in place without support, but there's always a chance it may fall out.  That's why I always fit some sort of keeper.  You could fit a stronger axle to center the nut, and if it's well enough supported, it should increase the speed of nut-rotation, but eventually, the pin will probably bend... it might create problems getting it out for replacement.  Geezer.
    ps:  Payne Gallwey's pattern has a fairly reasonable solution (The Crossbow, or The Book of the Crossbow) But of course PG specifies a close-fitting iron socket that is shallower than optimal.  (3/5 buried)  If you make your nut socket close-to or in excess of 3/4 buried, you won't be able to remove the roller from the top of its socket.  You'll have to go in the side.  Geezer.

      Current date/time is Tue Jul 23, 2019 2:00 pm