Hello guys, I am writing from Italy, here I hunt mainly wild boars, Deer is a protected specie. You can own a crossbow, but not use it for hunting, but you can use a normal compound bow. I do it anyway, I love shooting with my crossbow, wich I mad myself, and it's roughly a 180lb draw recurve. I was wondering, what do you think of the possibility of building a 1000 lb+ draw compound, which is self-cocking by means of a small brushless electric motor and steel gear reduction. Lithium polimer batteries are very light, and carrying a 24 volt, 6 amp pack in the stock is not too heavy at all. I am thinking it will have to be totally aluminum or totally carbon fiber, the limb material, that I still have to decide. The hardest thing will be to make the trigger mechanism around 5 lb pull.
Think it's feasable? In the 1300' they used to have crossbows up to 1200 lbs draw weight, with today's lightweight and strong materials, we should be able to achieve something close to that, and extend the range significatly. What are you suggestions?
1000lb Crossbow
Moderator: Excalibur Marketing Dude
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ItalianHunter
1000lb crossbow correction
sorry about my English, I wrote compound, but I want to make a recurve crossbow of 1,000 lbs draw, don't want to mess with the complexity of a compound crossbow.
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ItalianHunter
1,000lb crossbow idea
Would it be best to use Stepper motors to cock the crossbow? With stepper motors I could make a nice circuit . Basically as soon as a bolt is released, the cocking mechanism grabs the string at both sides, and pulls it back, in 20 seconds at most it will be cocked and the cocking mechanism releases the string. with 4 or 5 small steppers all turning the same gear, I could probably have enough torque to cock it, and at least 2 or 3 horsepower.
The bolt speed will be up to around 1,300+ fps on this thing.
The bolt speed will be up to around 1,300+ fps on this thing.
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ItalianHunter
I did not post that...some idiot did
I can't believe you are so idiotic to steal my username , and post garbage like that, whoever posted the last comment, is making America proud! Idiot redneck!
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ItalianHunter75
1000lbs crossbow
If there is a moderator, please remove the offending comment that some idiot made, I am very much straight, have a wife and a kid, and working on the second.
I wish I had the back ground to help you but I don't. The first thing that came to my mind was what are you planning on using for a bolt/arrow? What weight and stiffness would the bolt have to with stand the force generated by this crossbow. If the bolt was to light would the crossbow not blow up the first time fired? Good luck with your project.
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ItalianHunter75
information gathering
Thanks for your reply Shakky, right now I am trying to gather as much info I have on the medieval crossbows of that poundage. Whnat I have found is that those crossbows were made of steel, almost completely one pice of steel, . The bolts they were shooting had wooden shafts and metal heads of between 90 to 130 grain. therefore they were not any heavier than the arrows we use today, and they weren't blowing up either. I definitely don't want to use steel limbs, too heavy. I am doing my homework, for now.
1000 lb crossbow
Yep, they used to make some really stout crossbows, but were they man portible? Seriously, I don't know.
I do know I'd love to see pictures of the brute when you get it made.
JD
I do know I'd love to see pictures of the brute when you get it made.
JD
The best thing for the inside of a man is the outside of a horse.
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ItalianHunter75
portable?
JD--- that's my main concern right now, I have no doubt that it can be made, but I researched it and the lightest crossbow of 1200 lbs was 9 kg, that's 20 lbs, quite heavy, I imagine it must have had one hell of a recoil with such heavy limbs. Gotta find out more, specifics, chose a material for the limbs, carbon fiber/fiberglass , and elaborate what size limbs I need both in thickness and length.
Be sure that when I have pictures, I will post them, but it won't happen for a while, the idea just popped in my mind last week, and it's at the infancy stage, then I'd like to draw it with CAD etc.
Ultimately I want to make sure it can be made portable, otherwise, there is no point in making it in the first place.
Be sure that when I have pictures, I will post them, but it won't happen for a while, the idea just popped in my mind last week, and it's at the infancy stage, then I'd like to draw it with CAD etc.
Ultimately I want to make sure it can be made portable, otherwise, there is no point in making it in the first place.
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ItalianHunter75
reply to Sandman
What would I do with it? Well good question, a 220lb exomax is more than you need to kill game of all sizes......up to 40 yards.
I want to test and see how far I can shoot and have pinpoint accuracy, with little drop, maybe 100 yards, maybe more? Who knows....
My only concern is that it should be safe, and I don't know if something like that can be safe, have an acceptable recoil and noise level. It might be a lot of work and money and then be unpleasant to use, that's why I wanted some imputs, maybe by someone who builds crossbows, I am sure that they have tried at least once to push the limit, it would be valuable to get their point of view.
I want to test and see how far I can shoot and have pinpoint accuracy, with little drop, maybe 100 yards, maybe more? Who knows....
My only concern is that it should be safe, and I don't know if something like that can be safe, have an acceptable recoil and noise level. It might be a lot of work and money and then be unpleasant to use, that's why I wanted some imputs, maybe by someone who builds crossbows, I am sure that they have tried at least once to push the limit, it would be valuable to get their point of view.
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Guest
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ItalianHunter75
to Guest: I hope they get it, I'd give it to them myself, but wait... who's them?
Over here in Italy there isn't any hunting police, plus I got informed that it's nothing serious if they were to catch me, I will just play dumb, and say, well I thought it was the same as using the bow, I didn't think there would be any difference, and they will say: ok, go home now and come out with the regular bow.
That's how illegal it really is. The reason that it's illegal is just because the hunter doesn't make any effort holding the bolt at full draw, and that , added to the quietness of the weapon, makes it lethal.
I also hunt with my 80lb compound , especially when I feel like walking rather than tree standing. My draw is kinda short, at 26.5 ", yet I do get 295-305 fps with a 330 grain carbon arrow and 100 grain Muzzy broadhead.
The real problem is it's too easy, I can't eat all the meat, and I end up selling it, a 100 lbs young hog goes for 500 €uros , just shot, as it is. If I clean it I might get up to 900 €uros. Bigger ones don't taste quite as good, but still you can get more for them.
Over here in Italy there isn't any hunting police, plus I got informed that it's nothing serious if they were to catch me, I will just play dumb, and say, well I thought it was the same as using the bow, I didn't think there would be any difference, and they will say: ok, go home now and come out with the regular bow.
That's how illegal it really is. The reason that it's illegal is just because the hunter doesn't make any effort holding the bolt at full draw, and that , added to the quietness of the weapon, makes it lethal.
I also hunt with my 80lb compound , especially when I feel like walking rather than tree standing. My draw is kinda short, at 26.5 ", yet I do get 295-305 fps with a 330 grain carbon arrow and 100 grain Muzzy broadhead.
The real problem is it's too easy, I can't eat all the meat, and I end up selling it, a 100 lbs young hog goes for 500 €uros , just shot, as it is. If I clean it I might get up to 900 €uros. Bigger ones don't taste quite as good, but still you can get more for them.
Last edited by ItalianHunter75 on Sat Nov 20, 2004 1:37 pm, edited 1 time in total.
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Richard