love the design rlly simple and effective! could I give a suggestion, move the air tank to the front side so it creates a better weight distribution when firing too cuz of the recoil and it should feel more comfortable too.
That's probably even good underwater. Awesome build, well done! If you're at 6 shots, you probably are around 60 or more joules. Anything above 44joules is good for self defense at 10 yards.
I don't think that can be even 10 joules. Those little 80 ft lb pistol crossbows travelling at 56 M/s with a 7 gram bolt produce 20 joules on a good day and when you up the bolts to the weight of these ones, probably around 12 grams or more that energy will reduce further. But they still manage to pass straight through water melon and penetrate the backstop every shot.
@@noncompliance4100 NOPE. Do the math with me and let's check this out... He is recording with a Huawei P40 Pro at, *supposedly* , 7680 FPS. The cans have a diameter of about 6.58 cm (data found online). If you watch frame by frame, the arrow takes 5 to 6 *frames* to penetrate a can (like the "fanta" in the video). So, divide TOTAL FPS by "6fps",take the result, multiply by 6.58cm and divide by 100 to know the meters per second... [ (7680 / 6) * 6.58 ] /100 = 84.2 m/s. Now, a standard arrow is 30 inches and weighs about 36 grams. The arrow in the video takes approximately 27 frames to penetrate the can, so, if it takes 6 frames for 6,58 cm, the arrow length should be (27/6)*6,58=29.6cm. 30 inches are equal to 76cm. So, 76 divided by 29.6 = 2.5 pieces, meaning that the small arrow weighs 36grams divid by 2.5 = 14.4 grams. Now, 14.4 grams at 84 meters per second are more or less *50 joules* ... And that's all about it. Unless he recorded the video at 960fps. In that case, it's less than one joule (0.76 joules) but it's impossible to penetrate 3 coke cans filled with water at less than one joule of power, at 10.5 meters per second (which is what the math would say at 960fps). Change my mind. P.s. : my numbers were bigger actually. I've used 5 FPS on paper, not 6. Arrow 34cm and 16 grams of weight at 101 meters per second.
Hi, I made nearly the same construction...but I was not really satisfied: yes,, the power of the first shots were good like yours. But you loose a lot of power by the volume of the valve, next I connected the shellholder straight to the gun: more power but the trigger got more "hard" - I guess that the o-rings of the valve gets hard by the cold. About the tuberail: you should inform yourself about the problem called cavitation, it is a problem well known in hydraulic and pneumatic engineering.That is why I made test about the lengh of that tubes, I checked several blow pistols on the market and I constructed several ways to improov the power...the speed....and the way to supply the pressure...and I added a weaver rail with a sight and a laser. Well, a good solution to have a silent and very strong way to be prepared....
Possibly copper infused thermoplastic o-rings to maybe withstand the cold. I like your insight. Cause I was about to build this for myself but now I'm going to take to back of my brain for more research and development.
I never thought of the decrease of power by volume. No offense to the person who posted this video. It's a brilliant idea but as with all science and technology. There will always be obstacles to overcome. I worked with thermoplastics in the past and I know certain formulas can withstand high heat temperatures so maybe with a alterations and choosing different materials to melt with raw carbon and also obviously some sort of extremely durable rubber material (possibly silicone) that won't be destroyed by the carbon when they are both heated and compounded together. You can probably just buy something like that but I think making it is more fun.
@@michaelbanville8029 Hi, meanwhile I tested it - badly: the cheap airblowers have only small airchannels, and the valve is blocking by too much pressure. They are shure up to 20bar press - but this means only by security without break or exploding. I tried a cheap one - here the valve opened...but was not able to close again, the whole pressure was gone, no second shot possible. The springs of the valves are too weak, and sometimes the o-ring of the valve stayed not in position but were found inside the valve blocking. My idea: better take a paintball-gun...and construct a inside barrel which is inside the original one: less diametres will encrease the pressure and better fitting arrows will work better than heavy rubberballs....and are working with tips. And those guns are able to handle pressure of 300bar air - not CO2 which will get fluid. And this is the problem: if getting gas again on decompression the gas is freezing the barrels. BUT here in Germany painballguns are declared to be weapons and are F-signed..means if you make changes you are are producing illegal weapons....but if you are using "airtools" it is only an unauthorized use - you are not breaking the weapons laws. Well, it is no way to put Physics upsidedown if you know what I mean. There are better possibilities to think over.
@@thomas-eckhardscholz1448 Well said and explained. It's always a small thing that has such a huge impact on the project at hand. I like the paint-ball gun idea. I'm not sure about the laws where I live but with things like this I'll surmise if I may, that most of those who take on projects like this are thinking about a s.h.t.f. situation in our immediate environment and not with the intention to harm someone. Anything can be considered a concieled weapon if it is not out in the open and even still if it is. I'm not an engineer by trade but I have some knowledge and experience in the field. I enjoy building and creating obviously with safety being put first.
Why not just tap and thread a hole in the elbow for the pressure gauge instead of waisting time on that bulky aluminum piece. Also if you used a small air compressor like the one's you plug into the cigarette lighter of a car and a small 12v battery with a small air line all in say a backpack then you wouldn't have to replace co2 cartridges. Any who it's still kool and I appreciate you making the video.
A CO2 adapter with a pressure gauge would be the best bet instead of having to drill any extra holes. As for the 12v pump, those only got up to around 160psi which is much less than the 800psi in a CO2 cartridge. You would need a much larger tank air tank to have the same effect.
Maybe using an old paintball gun for parts. They used to sell another type of gas to run them that was better than co2 but I can't remember what kind it was. I like building potato guns more because all you need is pvc, hairspray, and a bbq lighter.
MAKE OFFICE AIRBOW WITH COFFEE STIR STRAW, TOOTHPICK, CELLOPHANE TAPE FOR FLETCHING AND TO FATTEN TOOTH PICK TO LODGE FIRMLY IN END OF STRAW; USE CANNED AIR FROM KEYBOARD AIRDUSTER. FIGURE IT OUT - SHOOTS 50 FEET.
You can find most of even all of these parts at home Depot or harbor freight. I took screenshots of everything one by one and found everything in those two stores I mentioned.
love the design rlly simple and effective! could I give a suggestion, move the air tank to the front side so it creates a better weight distribution when firing too cuz of the recoil and it should feel more comfortable too.
Thank you, nice suggestion, I intend to make another one and I will use your advice.
If you add an o-ring to the copper pipe it may help to increase efficiency and overall velocity
0m00>0pp
That's probably even good underwater. Awesome build, well done!
If you're at 6 shots, you probably are around 60 or more joules.
Anything above 44joules is good for self defense at 10 yards.
I don't think that can be even 10 joules. Those little 80 ft lb pistol crossbows travelling at 56 M/s with a 7 gram bolt produce 20 joules on a good day and when you up the bolts to the weight of these ones, probably around 12 grams or more that energy will reduce further. But they still manage to pass straight through water melon and penetrate the backstop every shot.
@@noncompliance4100 NOPE. Do the math with me and let's check this out...
He is recording with a Huawei P40 Pro at, *supposedly* , 7680 FPS. The cans have a diameter of about 6.58 cm (data found online). If you watch frame by frame, the arrow takes 5 to 6 *frames* to penetrate a can (like the "fanta" in the video). So, divide TOTAL FPS by "6fps",take the result, multiply by 6.58cm and divide by 100 to know the meters per second... [ (7680 / 6) * 6.58 ] /100 = 84.2 m/s. Now, a standard arrow is 30 inches and weighs about 36 grams. The arrow in the video takes approximately 27 frames to penetrate the can, so, if it takes 6 frames for 6,58 cm, the arrow length should be (27/6)*6,58=29.6cm. 30 inches are equal to 76cm. So, 76 divided by 29.6 = 2.5 pieces, meaning that the small arrow weighs 36grams divid by 2.5 = 14.4 grams. Now, 14.4 grams at 84 meters per second are more or less *50 joules* ...
And that's all about it. Unless he recorded the video at 960fps. In that case, it's less than one joule (0.76 joules) but it's impossible to penetrate 3 coke cans filled with water at less than one joule of power, at 10.5 meters per second (which is what the math would say at 960fps).
Change my mind.
P.s. : my numbers were bigger actually. I've used 5 FPS on paper, not 6. Arrow 34cm and 16 grams of weight at 101 meters per second.
@@FreedomAirguns wtf man did you achieve 100% brain activity and turned into a USB drive?
@@FreedomAirguns 😳🛸 dude youre gonna get abducted by aliens
Men use bbs . And do bolt action. Nice video . I also maker of pcp or pvc airgun. Metal and plastik. :)
Thanks for the tips!
Fantastic Job and Idea.
Thank you very much!
Sir, nice job. How many shots from one co2 cylinder. thank you. good job.
About 6 nice shots
I squint and hold my breath when cutting arrows
Try some with out the fletching as not needed when the power is applied at the front not the back
Correct.
Is that co2 system from a paintball gun?
How many bolts can you shoot on 1 co2 cartridge? And have you thought about a Colman 16 Oz propane cylinder.
I'd like to know that too. If you find out let me know thanx.
The old Bear
6 shots
Saw the vice grip and was like:. Yup, that ain't homemade. Took me a while to notice it was just a nice clamp
next hook it up to a compressor and run it at around 120 psi
This is better
Any idea what your arrow weight and velocity is? It's a cool build mate
No idea what the velocity is.
I have to buy Chronograph to know.
Clever build bro!
Thank you.
@@weaponizer4444 welcome bro
Nice build. I'm curious. What is that spray you're using?
Thank you, it is super glue hardener spray
V nice
That was very nifty!
Should reproduce and sell, I'd buy one, can make one used for shorter arrows making it more compact. Well done.
Maximum 20-24 joule. But nice👌🏻
Nice work, Liked.
Thanks a lot!
Why did you use superglue instead of teflontape?
How many shots can it make from one CO2 cylinder ?
6
@@gengiscu That's pretty good! Great engineering!
Hi, I made nearly the same construction...but I was not really satisfied: yes,, the power of the first shots were good like yours.
But you loose a lot of power by the volume of the valve, next I connected the shellholder straight to the gun: more power but the trigger got more "hard" - I guess that the o-rings of the valve gets hard by the cold. About the tuberail: you should inform yourself about the problem called cavitation, it is a problem well known in hydraulic and pneumatic engineering.That is why I made test about the lengh of that tubes, I checked several blow pistols on the market and I constructed several ways to improov the power...the speed....and the way to supply the pressure...and I added a weaver rail with a sight and a laser.
Well, a good solution to have a silent and very strong way to be prepared....
What do you think?
Just straight put the co2 to the gun
Or give them a valve to control the flow of co2?
Possibly copper infused thermoplastic o-rings to maybe withstand the cold. I like your insight. Cause I was about to build this for myself but now I'm going to take to back of my brain for more research and development.
I never thought of the decrease of power by volume. No offense to the person who posted this video. It's a brilliant idea but as with all science and technology. There will always be obstacles to overcome. I worked with thermoplastics in the past and I know certain formulas can withstand high heat temperatures so maybe with a alterations and choosing different materials to melt with raw carbon and also obviously some sort of extremely durable rubber material (possibly silicone) that won't be destroyed by the carbon when they are both heated and compounded together. You can probably just buy something like that but I think making it is more fun.
@@michaelbanville8029 Hi, meanwhile I tested it - badly: the cheap airblowers have only small airchannels, and the valve is blocking by too much pressure. They are shure up to 20bar press - but this means only by security without break or exploding. I tried a cheap one - here the valve opened...but was not able to close again, the whole pressure was gone, no second shot possible. The springs of the valves are too weak, and sometimes the o-ring of the valve stayed not in position but were found inside the valve blocking.
My idea: better take a paintball-gun...and construct a inside barrel which is inside the original one: less diametres will encrease the pressure and better fitting arrows will work better than heavy rubberballs....and are working with tips. And those guns are able to handle pressure of 300bar air - not CO2 which will get fluid. And this is the problem: if getting gas again on decompression the gas is freezing the barrels. BUT here in Germany painballguns are declared to be weapons and are F-signed..means if you make changes you are are producing illegal weapons....but if you are using "airtools" it is only an unauthorized use - you are not breaking the weapons laws. Well, it is no way to put Physics upsidedown if you know what I mean. There are better possibilities to think over.
@@thomas-eckhardscholz1448 Well said and explained. It's always a small thing that has such a huge impact on the project at hand. I like the paint-ball gun idea. I'm not sure about the laws where I live but with things like this I'll surmise if I may, that most of those who take on projects like this are thinking about a s.h.t.f. situation in our immediate environment and not with the intention to harm someone. Anything can be considered a concieled weapon if it is not out in the open and even still if it is. I'm not an engineer by trade but I have some knowledge and experience in the field. I enjoy building and creating obviously with safety being put first.
Great project do you have a parts list
In the description soon
Great idea bro
Glad you think so!
Nice work!
Thanks!
wow had to sub ,you got a really great channel !
pure awesomeness !
The aluminum arrows would work
I made one with a ram set. A concrete nail gun.
Interesting.
We should talk. Not sketchy. Not a cop. Or any other agency for that matter. Just a fellow engineer. Interested in that idea.
wow!!!
Why not just tap and thread a hole in the elbow for the pressure gauge instead of waisting time on that bulky aluminum piece. Also if you used a small air compressor like the one's you plug into the cigarette lighter of a car and a small 12v battery with a small air line all in say a backpack then you wouldn't have to replace co2 cartridges. Any who it's still kool and I appreciate you making the video.
A CO2 adapter with a pressure gauge would be the best bet instead of having to drill any extra holes. As for the 12v pump, those only got up to around 160psi which is much less than the 800psi in a CO2 cartridge. You would need a much larger tank air tank to have the same effect.
Maybe using an old paintball gun for parts. They used to sell another type of gas to run them that was better than co2 but I can't remember what kind it was. I like building potato guns more because all you need is pvc, hairspray, and a bbq lighter.
No watermelons were injured in the making of this video!
Мастер !
And that was just the beginning
Maximum range? Fps?
에어 컴프레셔를 이용해서 충전하면 더 강할듯 하네요
It'll be stronger if you charge the air with the air compressor.
I dont think so
Нет, не будет, давление CO2 при t-20 56bar, а в компрессоре автомобильном 8bar
Cool
Thank you.
WHERE CAN I GET THE PARTS FROM ? WHAT ARE THEY CALLED
I will post a list of parts in the video description soon
GREAT VIDEO BY THEWAY
Do you have a parts list?
오~ 굿
Cuantos psi soporta?
🎯
good morning
Morning
I think that watermelon was dead after the first arrow ...
MAKE OFFICE AIRBOW WITH COFFEE STIR STRAW, TOOTHPICK, CELLOPHANE TAPE FOR FLETCHING AND TO FATTEN TOOTH PICK TO LODGE FIRMLY IN END OF STRAW; USE CANNED AIR FROM KEYBOARD AIRDUSTER. FIGURE IT OUT - SHOOTS 50 FEET.
That is a pretty cool idea.
✋
Hi Man how many bar is the tube of carbon dioxide
50 60 bar
But it's denser and heavier than air so it push lot better.
@@tattooglisha thanks man
hi, any luck with the parts list? :)
You can find most of even all of these parts at home Depot or harbor freight. I took screenshots of everything one by one and found everything in those two stores I mentioned.
Please share the parts list
damn put oil on your drill when drilling aluminium.. sheeit
Aluminum is too soft. Dont need
@@gengiscu it grabs the drill and can bont to it. Always oil your drill
material list
😷😎😎😎💯
Thank you so much 😀
Sai fare anche Fat Boy 🧟♂️👍
المسافة قصيرة
🙏🏾😋🏹😁
Thank you
арбуз испортил
Who wants fried fish?
Зае..умба!
Фигня