New Vacuum Cannon Design - No Vacuum Pump Required!
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- เผยแพร่เมื่อ 27 พ.ค. 2017
- I recently had the idea for this new vacuum cannon design that many of you might be interested in. Since it hasn't been very long since my last vacuum cannon video I thought I would make this a more casual demonstration so I could ramble about all the various features and concepts without worrying about fitting everything into a script. If you would like to see my previous video of my 4" bore cannon you can check it out here: • How to Make a Large Bo...
Here is my video about making PVC pistons like the one used for this cannon: • How To Make PVC Piston...
A big part of how I've been able to keep making videos on TH-cam over the last year is thanks to Patreon supporters. If you enjoy these projects please consider contributing on Patreon and you'll get some other cool stuff like early access to videos. Most of all your support will mean I don't have to rely on the volatile TH-cam ecosystem to keep this channel afloat, and new videos will be assured no matter how bad TH-cam messes things up in the future. My page: / nighthawkprojects
Special thanks to my top Patrons! Syniurge, Matthew Leitzke, & TheBackyardScientist!
Here's a question for you to think about: Why does there appear to be no recoil when this cannon fires, but my last vacuum cannon recoiled heavily?
Hint: The answer is not just because the cannon is held down more securely, though that's part of it.
I assume it has something to do with the projectile launching out as well as the air coming in from the other side of the cannon. The two forces cancel each other out? Hopefully you get what I am saying.
Nope. Both cannons would have no recoil in that case.
Hmmm... you have me stumped here.
Maybe the Vacuum in the new design isnt as powerful as with the vacuum pump, and plus this one being secured better.
The vacuum in this cannon is actually even stronger than in my last one.
This is seriously the best cannon on youtube... So simple yet so powerful!!! I love it!
I like the coaxial piston cannon because you can pump it up walk around and fire at will no stands needed. Lotta fun mines awesome
Maybe if you put the flap underneath the barrel it will move out the way before the projectile hits it because it won't have to work against gravity, hope this helps
with just the right amount of rubber or spring tension pulling at it as well
Eren Thompson Was thinking the same as well
Eren Thompson was thinking the same, he could just have a rope to hold it up before he has established a vacuum. Once he has moved that piston back just a bit, it would hold itself in place and he could release the rope. It would be faster, the question is if it would be fast enough. It would be really easy for him to test though
Or he could just use a longer barrel...
Actually... there are also two other simple solutions.
1. He could lower the mass of the whole value. (hinge out of plastic, hinge glued to the valve instead of screwed on with a nut and bolt.)
2. He could increase the (m/s)/rad of the valve. He could do this by mounting the other side of the hinge (opposite of the valve) directly to the top of the cannon instead of mounting it on top of that piece of wood and THEN on top of the cannon. Basically, by increasing the length of the valve arm, he's increasing the amount of force required to get the valve to travel 80 degrees and clear the barrel. Just like how you can apply the same force to a door from the handle and right next the hinge but pushing from the handle doesn't make it swing open as fast as pushing from right next to the hinge.
Maybe you can use a magnet to hold the projectile
that is pretty clever!
That's really clever. Why didn't I think of that!
thx
theres always a clever solution for everything it just has to cross youre mind
Rutger 420 NightHawk needs to see this!
0:05 how to crack open a cold one with the boys
Irritation Gaming lmao
How to crack a boys with the cold ones 😂
I feel like you should patent this new, novel, and highly effective method of stamping aluminum.
lollolololol
Stamping at the speed of sound
Fantastic application of the PVC piston!
Thanks Grant! Feel free to use it, I would love to see what others can come up with for that piston. I was pretty proud of how simple they are to assemble.
Grant Thompson - "The King of Random", future mash mellow shooter?
This makes me wonder if the concept could be turned into a vertical rocket launcher.
make youtube together
i dont think so. try searching for marshmallow in a vacuum. the projectile would expand and get jammed in the barrel.
That cannon has some serious power. Great video!
This is a phenomenal design! I did a science fair project on vacuum cannon barrel lengths a number of years ago and ever since I have wanted to find a way the same results could be achieved without a vacuum pump. I love the simplicity of this cannon with the same amount of power as your other cannons. Nice work Ben keep it up!
you should put smoke or fog behind your project where its sucked and record it in slo-mo
Inside the vacuum it would not work. But if you had smoke/flour behind the projectile (outside the vacuum) the smoke would get sucked into the pipe pushing the projectile out the other end leaving a trail of smoke behind it. The only way it would work inside the vacuum would be if you put a fine solid such as flour in front of the projectile and pulled back the piston to shoot it out.
Heinocraft how does it work? Or why do you say that?
What I mean is put the smoke or whatever outside of the vacuum. Like right behind where the air get sucked in so we can see it get sucked in?
Preston Blackard yup i wasn't specific enough huh. I meant outside, behind his project.being the end where the SUCC
I concur.
Would it be possible to scale it down even further? My thought was to make it a handheld dart launcher using it like you would draw on a bow.
try syringe
Wouldn’t that affect the power? The longer the barrel the more power it can produce. Right?
I really like this design! Great video too.
So simple, yet so ingenious! Great work!
Have you thought about using a Spring to open the Flap disk faster? You could use a Piece of String to hold it down while you are pulling the Vacuum, then release the string and the vacuum will hold it shut. as you fire the Spring will open it faster than the pressure alone, at least that was my thought Process. Maybe it is worth it to check it out? as alwysy Great Video Mate
Best Regards
Joe
I think I started following your videos maybe 10 / 12 years ago when I was in high school. I haven't watched your stuff since then. This video recently popped up and seeing you made it so far now with many other explorations is really motivating.
It's not fair. You're extremely inventive and ridiculously good looking! The rest of us have no chance! :)
I really like the simplicity of this design. No pump, only one (well, two, if you count the projectile) moving parts, and it builds on a previous design (your PVC piston).
I wonder whether its possible to build a miniature version for two handed portable operation with normal pvc parts.
This cannon design is really good, it really has the potential to become as popular as a crossbow.
Make a REALLY big one that you pull back with a winch on a truck. Im thinking 10" pvc thats 20' long would make enough force to get a preemptive strike on north korea.
Adam Moore YES this needs to be a thing. "Why are we not funding this?"
I did the math: If you were to shoot a 5kg bowling ball with a 9" pvc thats 20' long the ball would reach slightly over 500km/h (310mph), that is however without friction and with a perfect vacuum.
That means it would have 346.455 Joules of energy. And you could do it with instead of a winch on a truck, just go back to the old design and use a large vacuum pump.
A bowling ball going 310 mph seems like it would have alot more energy than 346 joules.
Yeah that surprised me too. Im not sure where i went wrong
you are an absolute genius, I would have never thought of using a vacuum like this to create a cannon. Thank you!!!!
Thank you for all the ideas and projects. My family loves your easy to follow teachings and expertise
Would it be feasible to make a handheld version? Much like a toy or maybe close to the power of a slingshot?
That would be a rather interesting project :)
It seems like it would be pretty easy to just scale this down. I don't think it would need its own video.
That's a fair point man, but it could be more than just scaling it down ;)
It could have added features which would facilitate it's handheld use, so it's no a cumbersome thing to use for quick recreational purposes. It could even feature a spring mechanism of some sort to aid in firing, something to make reloading even easier and also a working flap, so you don't have to carry lots of burst disks around with something supposed to be easily carried and used
Of course, however, remember the power comes out of all the air he is evacuating and a smaller tube would mean less power. It would also be much harder to draw back if it was made powerful.
Indeed, I was wondering about that, it may become rather unfeasible depending on how small we're talking about
Scaling down to hand held size would mean much less power, true. Hmmm... Perhaps a two person weapon, like a bazooka? One man holding and aiming the tube, and one pulling the piston.
...
... and now I'm contemplating a streamlined fin stabilized projectile...
Really enjoy your videos, and have done so for a few years. The number of supporters on patreon is a bit disappointing considering the quality of the videos you produce. I'd love to support you, but I don't have a regular income yet and no payment method available to use on patreon. But some day, I'll be there.
Anyways, continue making great, well-produced videos showcasing awesome ideas!
I know where I'm going during the zombie apocalypse. You make all the cool toys!
I really love this video. The enthusiasm and explanations it's so fun to watch and I get a smile from ear to ear when I watch you talking about a amazing creation!!!
His eyebrows go up every time he looks at the camera
But I love his contest more than I love his eyebrows
Holy shit he does it every time , now i cant see this
It would be so cool if you could pull the piston back using some king of crank or gear system
Yeah plus you would need a system like that to make it more powerful since otherwise you need to physically pull the force.
Maybe if he did a flat gear along the piston with the crank and gear firmly attached the cannon then it would not need to be anchored.
Vakus Drake ITS CALLED GEARING.
As far as my Tastes go, you have to be one of the most if not, the most premier, TH-cam creator out there man. Bravo once again.
I love that PVC twang it makes when it fires!
Let me show you its features!
+1 for the Jörg Sprave Refference
I'm going to build this cannon and film it at 40 000 fps. I'm really interested to see how the burst disc works up close and personal.
If you do be sure to send me a link to the video. I'd like to see it
Spirit Please send me a link, too. I would like to build this vacuum cannon.
Spirit please can you send me a link too ? I'm very interested :)
Where's the vid bud?
I waited entirely too long to watch this video. Awesome.
Saving this to my "Project with Kids" playlist. Great way to get them interested in the science involved. Also Budget friendly. Thanx for the great content!
Is it possible to scale this cannon differently with the same principle but smaller or larger to fire different projectiles?
Yes, but making it larger would require a great deal more force to pull the piston back. You can make it smaller in diameter, but it still needs to be quite long to work properly.
Under-barrel mount for valve might be more succesful
lundme but it wouldn't be very easy to set up because the valve would want to fall about of the way when there's no low pressure inside the cannon.
.... ugh.... just hold the darn thing in place with the smallest piece of tape until the vacuum pulls it into place....
I did comment the same thing before read yours. Instead of tape I would use a weak magnetic to be completely reutilizable.
watched your videos for years, and I've always found them very engaging, useful and informative!
beautiful design.simple and functions smoothly.
I was actually thinking of making a nerf gun with this principle for some time now
How far can it shoot?
About 6
@@Sky20653 Yeah, more or less
I am going to make this with my son this summer, it will be a great project with him to get him interested in working with some of the tools in my shop. Thank you!
super simple and effective design. I think it's amazing how sometimes projects start out very complicated but as you work with the ideas they become very simple. I also like this different style of production.
Thanks Schel!
How old is Ben? He has grey hair, but still looks like he could be 25 years old. Must have good genes
I'm 27. I've had gray hair since I was 17 or 18.
Wow, didn't know you could start getting grey hair that early. Still an awesome face tho. Love your videos!
Swekkinator I'm 15 and I have Gray hair it's normal
Swekkinator tru dat. he has a fabulous haircut
Grey hair happens early in some people for some reason, I'm sure Wikipedia could tell us exactly why. I went to school with this kid who's hair started turning grey at 14/Freshman year of HS, by the time we graduated he was grayer than my father, but more of a darker grey. Weird thing is, I saw him about a month ago at a gas station for the first time since 2011 graduation and it didn't seem like he'd aged a day. Genetic mutations fascinate me.
Can you try making an Asssasin's Creed grappling hook using this idea?
D1G1T4L PYRO That is Spring Powered. For Vacuum you need quite a big Pipe/Cylinder thing. Which is impractical in this case
D1G1T4L PYRO this ain't the Colin furz channel
***** I know, but still
Great idea! even though its impractical isn't that the point of mad science?
I really like these video formats a lot. even if you aren't showing off something new its interesting and fun to have you explain the concepts behind how the cannon works.
plus its nice to have a video thats less clinical than they have been in the past, which isn't to say that they aren't still great!
This is really awesome! I always told my high school physics teacher I was going to make a vacuum cannon and show him but couldn't do it without a vacuum pump. This design makes me want to try and make my own though!
I love when you talk naturaly, like King Of Random.
unlike king of random he didn't trade his few jewels of videos for sacks of moneymaking crap every day!
under 1 minute club
yoss
how are you still getting likes EVEN after 1min after the video?
creatorlater I'm happy to be in the 1min club
creatorlater you can get creams that numb sensitivity that help with that issue.
Bet the wife isn't happy with that...
I've never seen a vacuum Cannon like this it's really cool
Don't give up on the flap idea. I'm thinking that you could use a much thinner and lighter weight flap. I would try either stiff aluminum sheet, or better yet, some carbon fiber sheet. The gasket could be made from Silpat (or any other silicone baking sheet). Also, that hinge looks pretty heavy as well; maybe just tape the top with a small length of scotch tape. With this design, the you are basically making a reusable disk more than a flap. Love your stuff! Never stop building!
hello
WHY DID YOU READ THIS
creatorlater why the fuck not
creatorlater lookin for the song name
Volume
Your inventions are always so amazing to see and watching you build them is so Intriguing.
Great build and video work. The explanation was well done. Thank you for taking the time to put this together! Simple and easy to follow.
This taught me so much with such a simple design. Excellent demonstration!
dude, like, coolest physics teacher ever
Simply outstanding!👍👍👍👍👍
I love how simple this is.
FRICKIN AWESOME PROJECT!
oh that Chuckle!! so cute!
This is freaking brilliant!
Love TH-cam.. learn something new everyday!
I've always wanted to build a vacuum cannon ever since I saw one on Mythbusters, but they always relied on the vacuum pump. I love the idea of building this design for myself without the need for the pump! Thanks! The hardest part will probably be anchoring it securely. :)
Dude, very very awesome! I love that it doesn't require a vacuum pump... Now to find time to build one.
A very smart and cool vacuum canon!!!
I love this channel. Thank you for being awesome, mate.
Very interesting Ben. I like this more casual video format.
One of your most professional feeling videos to date, well done!
I love the simple design.
Great design. Love the powerless option.
It has a big potential !!! wow !
I love, and watch, all of your videos! ❤
Tilt it upwards - would love to see how far it flies... just watch out for those cars!
I love watching your videos. Can't wait to try out some of these projects you did with my son when he is old enough.
Great job on the project and the way you explained things. Thanks for the fantastic videos.
Loved this video! I totally want to make a vacuum cannon now! Thanks for making this!
Love it!
Awesome! It's really cool seeing a manually activated version. I'll re-patronize soon (I have some big expenses right now, moving into my new house.)
brilliant idea! I was playing with the idea of the flap disc for my large bore vacuum cannon as well. I think if you attach the flap only on a thin string it might already be enough of a weight saving over the steel hinge to work.
I like this style of video where you speak directly into the camera instead of a voice over. Also, I love how you made sure we knew you weren't wasting the beer, that might be considered alcohol abuse :P
Thank you video and explaining how vacuum works
beautiful design
I love all your videos it helps me to keep the kids busy
MacGyver !! Love it, THANKS.
Best use of Pabst I've ever seen
watching your videos is really refreshing. you don't only learn, but you also become fascinated by how it works. you do a really good job of keeping it interesting too. deserves more views :^)
Now thats what I call cracking open a cold one with the boys
That is pretty awesome.
I really love that you made this I wanted to make a vacuum cannon before but didn't want to spend the money on a pump thanks😃
I love the style of this video, very informative and more personal
Love your videos.
Thanks!
Hey, awsome job :) always makes my day when you upload a new project!
I love your work mate. I can't wait to make some of these
I think this is really well done all around.
I love your vacuum cannons! I'm going to build this one!! Thanks for the video
this is the best way to go... great job.. thanks for the great videos.
that is so awesome!!
Wow this is an amazing idea!
Good job Wesley.
This is just so cool !!
I've always wanted to make a cannon with my daughters. This is one we can do. Thank you.
Awesome! Just put on a vacuum accumulator on the muzzle to get rid of the back pressure, and you have a winner.
I am totally impressed, what a good idea. I plan to copy it for my physics class.
Thanks for another awesome video, they have been an amazing source of inspiration for gear projects I've done with my kids. Just finished a ukelele using your cigar box guitar techniques. Just signing up to support your videos on patreon, very well earned thank you very much!
Thanks! Hope the ukulele turned out well. Email me a picture sometime, I'd like to see it.