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    My Presentation!

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    octavioaugusto.oliveira
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 32
    Join date : 2013-07-15

    My Presentation!

    Post by octavioaugusto.oliveira on Wed Jul 17, 2013 12:24 pm

    Hello everybody.

    In spite of my age (76 years old), I finished the reconstruction of my house...it suffers a flood this last winter and I had some time and disposition to build in very short free time to make one slingshot crossbow as a design similar of a Mediaeval weapon...but my goal is another... I feel a lot of enthusiasm to build a real crossbow like those used at XV century....Why not?

    Of course, I watched a lot of videos concerning this matter and I saw the excellent pictures of the construction of the stock at Wiki. My first trigger will be the easier one, with only a piece (a pinnacle) But my first problem is the wood...here at Portugal, we have only the pine wood to buy..so...I think to make it with pin...what can I do?

    I would like to know if I can use a bow of megaline 100 pounds...This material is available at some stores of modern crossbows. By the way I will study carefully all instructions here to get more information.
    Before my retirement I was an hardware engineer of IBM, after I had a hobby...modeling little typical sail ships, but now the crossbows are my objective.
    Unfortunately my English is very poor, sorry about my mistakes. I hope to learn a lot with your help. Thank you ver much!

    Cheers
    Octávio Oliveira
    Portugal (Lisbon)
    avatar
    kenh
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 765
    Join date : 2012-08-03
    Age : 69
    Location : Living Aboard a Sailboat in Fort Myers, FL

    Re: My Presentation!

    Post by kenh on Wed Jul 17, 2013 1:42 pm

    Olá Octávio, welcome!

    You can use hard pine wood for a crossbow tiller.  I used American Yellow Pine for the tiller on the bow in my avatar picture.  Building it is described here:

    http://thearbalistguild.forumotion.com/t945-loose-laminate-pinlock-build

    By "pinnacle do you mean a Pinlock -- pin and trigger arm -- like the one on my crossbow?  That works very well with 100# prods.

    If by "megaline" you mean fiberglass like the Italian crossbows shown here: http://www.megaline.it  then yes, fiberglass prods are very good. If you look at my prod described above you will see that it is made with two pieces of 6mm x 19mm fiberglass bar stacked together without glue.

    Don't worry about your English.  My Portuguese is almost non-existant! We'll figure out what you're asking and give you the best answer we can.

    octavioaugusto.oliveira
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 32
    Join date : 2013-07-15

    Arrows or Bolts...this time!

    Post by octavioaugusto.oliveira on Thu Jul 18, 2013 8:08 am

    Hello Kenh

    Hi Kenh

    Thanks a lot about your last information concerning my future crossbow trigger! Today I get one piece of the beech-tree from a vendor...2,60 meters by 7 centimeters of large...not bad, This wood is very nice and strong. Unusual chance because they sell a big quantity each time like a completely tree...We have a lot of limitations, you see...

    Please another question...Now about the bolts...It is necessary to make a groove in the side of contact with the string? Or I can buy normal arrows! With the pinocke to launch rhe arrow the extremety in contact with the string mount a little bit with the arrow. It is not matter?

    I understand very well the english written for you, my preocupation is... if you understand me...I am giving work to you my Friend...Sorry
    And thank you again.
    Cheers
    O. Oliveira
    avatar
    kenh
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 765
    Join date : 2012-08-03
    Age : 69
    Location : Living Aboard a Sailboat in Fort Myers, FL

    Re: My Presentation!

    Post by kenh on Thu Jul 18, 2013 5:51 pm

    Bolts are usually shorter than regular arrows, and do not have a groove or notch on the back end.  They are flat on the back end and held in place by the bolt clip where the string comes up onto the grooved top.

    octavioaugusto.oliveira
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 32
    Join date : 2013-07-15

    Bolts again but my question is solved!

    Post by octavioaugusto.oliveira on Fri Jul 19, 2013 5:46 am

    Thanks a lot Kenh! Now I understood! That mean, about half the large of the bolt is inside the groove of the crossbow. Right! When the string is shouted the small arrow maintained by the bolt clip receive the impact in the middle of its diameter and go away...For that reason I must to make the arrows too...Fine, I get easily material here to do the arrows. no problem...

    This afternoon, I get the wood for the Prod. Next week,  I will buy the bow. I Am very grateful by your aid!

    Many Thanks


    O. Oliveira

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