3D Printed CO2 Rockets
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- Опубликовано: 20 авг 2024
- In this video I will be demonstrating my 3D printed CO2 rockets that I recently designed. I originally came up with this idea after watching the backyard scientists video on his CO2 cartridge powered rocket launcher. These rockets snugly hold 12 gram CO2 cartridges that are normally used in airsoft and paintball guns. The 3D printer that I used was an Anet A8.
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Rocket Stability - Center of Pressure: • Rocket Science: Stabil...
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That extra nose weight is killing your performance. Get rid of it and just move the CO2 cartridge farther up inside the rocket. This will also require a longer nail.
Unfortunately, exhausting the CO2 inside the rocket would probably just blow it up given how thin the walls are. It may also become unstable after exhausting some CO2 since you're losing nose weight. What it really needs are longer fins.
A solution that would be to simply make a single-walled "exhaust cone" in the back.
+Jason Bass I dont think that would be an issue because if you move the cartridge farther up then everything below it can be as thick as the cartridge its self, and then you just make a small channel for the gas to exhaust through down to the cone
A good way to do that is to simply extend the fins down below the point of exhaust, thereby moving the CP further behind the CG. The longer the fins, the less nose weight needed. Picture an Estes Big Bertha.
with longer fins it won't fit inside the tube
100% waiting for you to nail the drone with a rocket
Easiest way to find the approximate CP is the balancing point of a 2D model of the rocket, like a cardboard cut-out. Could you use the rockets to shoot the person who composed the background music?
I thought cp as something else first...
Definitely could have left the music out of the video! 🤭
Please refrain from using “cp” as an abbreviation
Cheese Pizza
awesome! Did you notice any drifting at all during launch? Im curious to know how well the fins stabilized the rocket upon exiting the tube before any aerodynamic effects took over.
Definitely subbed!
Hey Peter! The small and medium rockets did not seem to have too much noticeable drift upon launch. Although I didn't have much luck with the taller rockets. None of them went near as high as the others and they kind of flew in there own direction. I think this was because there was a slight bend in the PVC pipe and the long rockets wanted to get stuck inside.
Also, it was pretty windy the day I filmed this so I am definitely going to have to have to try them out on a calmer day! I have already been thinking of ways to improve the rockets and taking advice from others.
I am a big fan of your channel and I think its awesome that you subbed! Thanks!!
PeterSripol hi Peter you should make a flack canon out of this idea for Flite Fest's dogfights shoot them at model bombers
Ok this needs to be a collab right now....
cool cool! good to know, I want to make a nerf gun shoot small A10 estes motor rockets out of it, I'm running things through my head figuring out ignition and stabilization methods!
That sounds awesome! I would love to see it, hope it all goes well!
Very cool! This gives me some ideas...
Wow thanks James!! Can't wait to see what you come up with!
the Hacksmith , the true maker! You are here now? Awesome! :)
Woah
Ohhh yes!, me too ^)
the hacksmith @!
can you print one with glow in the dark filament and fly them by night ?
Yeah thats a good idea!
florian beckmann i
He should
Or put an led in the nosecone
Nice video, You make me really want a 3D printer!
Creating Creations same i what one as will probably the anet a8
Project Gaming Check out his videos on the A8! I really want one because of them!!
Paul Kamps ok thanks is i will
The a8 is a flaming death trap. Check out the monoprice select mini or the maker select
Mattsoup I got the maker select and it's really nice
Wuhuuuu! The keychain is mine :D
Eduard Bauer enjoy boiii
What exactly was the contest and how was it structured? Im curious as Im trying to advise my son to do a contest with 3d printed prizes for his channel. Any input would be GREAT, Thanks!
Looks like an anti-drone cannon to me.
Pro at 3D Printing, try bigger Launch Tube and Fins that are hinged and quarter-round.
The spin at launch deploys (they unfold) the Fins and they prop themselves open in the quarter-circle shape.
You would probably gain enough surface area that you could use 3 instead of 4 Fins (increasing their flatness). The added Tail weight prevents tumbling and _pays_ for itself (unlike adding Nose weight).
For greater silliness try using a 2nd Nail and CO2 Cartridge as a Payload (return to sender, when fired horizontally).
Thanks for the Video,
Rob
LowLightVideos or maybe the fins could be somekinda foamy plastic so the fins could be rolled around the rocket (glued straight on the rocket) so they would unfold when fired
Never thought I'd be in a future where I could download rockets I saw on a RUclips video and print them out at home. Amazing.
cant make this in Australia id loose my gun licence if found with or using it
Gummy Bear is it illegal to use it if you don't have one
yes
Ah good ol' not freedom.
same as firecrackers - spud guns. basically anything that used to be fun that someone has hurt them self's with.
Yeah, we're kinda fucked in Aus.
Spud guns will have you thrown in jail on terrorism charges as they're technically a Cat R weapon, same category as rocket and grenade launchers.
Fun is illegal in Australia, our laws are so fucked
Great video and good idea. One thing about CO2 cartridges. CO2 is liquid under pressure. When you make an opening, the pressure inside starts diminishing, which makes the CO2 convert from liquid to gas. When the opening is at the bottom, the liquid CO2 is being expelled before given a chance to expand into a gas, meaning you are losing a lot of fuel and propulsion. I know doing the following would increase complexity quite a bit, but I think the rocket would fly much higher if somehow you were able to have the opening facing up and channel the expelled gases through some form of conducts in the rocket itself. This would obviously need a stronger, thicker and more complex rocket and you'd need a wider launcher tube. In any case, just an idea.
Cool improvement on Backyard Scientist's concept. Just so you know, it's not necessary to build up pressure in the launch tube. That's how a gun works - this is a rocket. A rocket provides its own impulse just by venting the fuel matter out the back. In this case, building up pressure in the tube might actually be counterproductive since your impulse depends entirely on the flow rate out the hole you punch, and the flow rate depends in turn on the difference in pressure between the cylinder and the chamber. (It seems in your case you didn't pressurize the chamber quickly enough for it to matter.)
If you could adjust how deep the nail punctures the CO2 cartridge so it is a smaller hole, maybe the rockets will fly even higher.
Great job dude ! Though, is it possible to replace the zinc weights with some type of parachute mechanism ? To give it a visual effect, or if you had the space you could place some bright lights somewhere in the rocket, and try to take a long exposure shot of the rocket in flight!
Keep it up with the good quality content
Would adding a bias to the fins add to stability making the rocket spin like the rifling in a gun barrel spins a bullet?
Adding rifling to the tube and using the cartridge without any add-ons would work better and go further. The plastic is only weighing it down and making it less aerodynamic.
The fins would make the rocket spin, it would be more stable, that's what the streaks of a gun's cannon do.Great job!
If you made the pvc a 1 inch pipe you could, in theory, make the fins larger by adding a discarding sabot system that would increase the lift and make these fly farther horizontally instead of vertically. You could also put the fins at a slight angle to mitigate any movement perpendicular to the rockets velocity
So much to be improved upon! Add a grip and comfortable shoulder rest to make a RPG like gun. Making interchangeable magazine system, which you can load different types of rounds into. The ultimate War Machine!
This is cool.
I love how the free sharing of information allows for people to quickly pick up from all the hardwork and mistakes and research of others so that we can quickly and efficiently focus on new concepts and ideas to continue building and improving on.
This is the pinnacle of what society and humanity should be like.
The RUclips scientists, DIYs, and 3D Printing Community is definitely the Shining Example of this.
You should try having the fins angled slightly, so they impart some spin. It's hard to tell if there is any wobble in the rockets, but having spin would help stabilize them.
yes, with a little practice, YOU TOO can drop metal cartridges on your neighbors!!
Is there a file for the trigger mechanism pieces?
You can try adding a rifling in your barrel so that when the rocket exits the barrel it will spin. This would boost the range a lot more.
I'd suggest you put a bright LED blinking at 10Hz in the nose cone. Since it only has to blink for about 30 seconds a coin cell will probably cover it. Then film at night with a long exposure. Count the blinks, compute the angle from the launch point and the camera point, and then you can recover acceleration and altitude performance.
For more stability and a straighter shot id recommend having the fins slightly tilted so it spirals.
Try drilling the end out of your spent cartridges and packing them full of a 50/50 mix of fine zinc and sulfur powder packing it in tight enough to be concrete hard with no air pockets. Drill into the propellant about half the length of the cartridge and pour in some loose sodium chlorate and sugar mixture then insert a cannon fuse. Try some of those babies in your printed rocket bodies. I would suggest launching them from a steel conduit though. The exhaust pressure will most likely splinter the PVC. I used to make those zinc sulfur motors back in the day and play with them. The draw back is that I recovered only a couple after launching them. Those things come out at bullet speeds and are pretty much gone. Oh and use a long fuse and stay way the heck back just in case one decides to be a grenade instead of a rocket.
Food for thought, build in a small led light and set it off at night. Shoot multiple ones with different colours and record it with a high speed if available xD
An idea would be to redesign the nose cone with a little led and laser battery in and Launch at night. It is a lot of work but might turn out awesome.
those would be sick underwater torpedoes
If you angled the fins slightly you could induce spin stabilisation - which is an effective method for creating stable ballistic projectiles (think bullets).
Why was this on pornhub?
Lol
Because it’s heavy penetration
Best 3D Printing channel by far!
Thank you for inventing backyard artillery.
I had a teacher who made CO2 powered rocket that was attached to a stretched out high tensile wire fixed at both ends of the classroom so it was like a monorail. He set it off in class. It ripped the wire out and nearly decapitated the entire class. He was a good teacher.
If you take some very smooth anodized alloy pipe add oil to inside and just put the co2 carts straight in it works great. Its important to have just less than 0.5 mm clearance for max pressure pipe should be about 1 .5 to 2 metres
Now what you really want is a 3d printed version of the Gyrojet pistol - you already built the ammo!
I love how I can make this myself with all the instructions you post!!! thanks so much man this is the coolest thing ever!!
Way cool rockets, nice design and walk through of the process, very important stuff you included. Might just have to print and launch a few of these myself. Wonder if you could build a multi-canister system to use 4 CO2 carts.
you Didn’t need to build a firing mechanism with springs.Just use a cap with a nail at the bottom end of a pvc pipe so you can drop the rocket in the tube like a military mortar and it will use gravity to puncture the cartridge firing it back out of the tube.
You can also mount it to a camera tripod on a vertical axis
I think your launch tube should be of a more rigid construction. In theory this will be a more efficient path for the rocket, resulting in a better exit of the tube, which will hopefully allow a better and longer flight. I noticed that there is a lot of flex in the launch tube whilst you are firing. Of course this may mean you need to redesign your rocket if you can't find a metal alternative to the PVC pipe that is the same inside diameter. I really enjoyed this project and video. Thanks.
You could use a thinner nail to create a smaller hole..thus letting the pressure escape over a longer period of time and maybe letting the rocket fly farther. :)
Hey nice video, one little thing comes to mine not sure you realised. Presumably you may be able to extract a lot more power from the co2 cartridge if vaporization is optimised like on a co2 air gun. Have you tried having the co2 cartridge facing forward and having a nail in front of the nose. Then crack it open by striking the cartridge from the bottom. Then have airways in place to direct the vaporized gas to the bottom of the rock (where the bottom of the cartridge is facing). In this case you might get a well vaporised and pressurised blast rather than releasing the liquid co2 directly. Here is my 5 cents bro, would love to see whether it works if you haven't tried it before :)
Add water to make it even better. The outer tube could hold water and the firing pin(nail) could be inserted through an O ring and struck with another firing pin. The plug(nail) would eject backwards as the CO2 and water came from the rocket as the propellant. There are many specific actions that would take place and need to be accommodated for, but let's "keep it simple" ?
Use a little neodymium magnet as the nosecone weight and you can electrically trigger the sealed cartridge backwards down the barrel to puncture its end.
If you cant the fins slightly, or put a slight asymmetric wedge on the bottom of the fin, you'll get spin stabilization. Straighter flight but slightly lower altitude.
Also, you can probably fit the Estes altimeter in your rocket.
SUBSCRIBED!
Wow Thank you!!
Woah! Its G3AR
And when the cartridge is empty you can widen the opening and cut the heads off of wooden matches and fill it about half to 3/4 way full and make it a rocket again warning May explode if you put too many match heads inside the cartridge. Ignition can be a problem because you don't want to be too close. Even when everything goes right it still puts out a 3-ft flame when you launch it!
its neat how you used backyardscientist's idea and made it awesome!
Cool Idea! instead of a dead weight build one with an acceleration sensor to detect the apogee and deploy a chute!
this music fucking kills me
ay wat is this song do u know
Fwullie your prof pic kills me
your degenerate dog fucking profile picture kills me
The picture isn't that bad. Cartoon furries (SFW ones anyways) are fine, just don't introduce me to any fucking rejects in costumes or random ass depictions of Zootopia following Rule 34.
It's a wolf squirrel thing that is clearly meant to be sexual making bedroom eyes... it's fucking revolting. He's definitely one of those people.
You should add something like a screw-shaped tip but to make it spin when flying so it will be easier for the rocket to brake into air.
regards from Argentina
For model rockets (i.e. Estes rockets), you usually use clay in the nose instead of metal.
This may or may not have to do with the National Association of Rocketry's Rule 1: Materials. I will use only lightweight, non-metal parts for the nose, body, and fins of my rocket.
add a sealable magazine so no pressure can escape but now you can reload quicker by opening a slide bolt mechanism
Make it with a glow in dark filament and launch it at night
Adding twist to the fins will also help with stability in flight, think about the rifling of a gun barrel.
1. Give the exhaust a bell form
2. Falcon 9 has no fins
3. Don't shoot the rocket from a closed pipe like a gun projectile but let it climb by its own exhaust gas like you did with the purchased ones using a guide stick
You used the backyard siantist idea and modified it great work
Seriously!!? I'm pretty sure that would be illegal here in the UK.
BRILLIANT VIDEO THOUGH!!
You should try adding some rifling to the barrel of the launcher and small spring loaded tail fins.
I plan to make something like this for one of my rc warbird planes. Dangerous, but classy looking
To make them more stable make the center of gravity one body-tube diameter above your center of pressure. Anyway great video!
make a rocket bottom "wings" a littlebit twirl, like a propeller, this will give the rocket spining, and then it will fly stright lika a bullet. then the center of mass shuold be more in the front of the rocket. simple physics. And another thing. Drill a lot of hole in the the launcher tube so the air can go inside the tube during launching. this is needed to minimize underpressure inside the tube. I know the co2 is compensate the underpressure, but i think the speed of living the tube may be better.
Awesome idea. You should try one of the big paintball co2 cartridges you can get at sporting goods stores.
Try adding a twist on the fins, so the rocket will corkscrew in the air and be gyro stabilized.
Now replace the zinc tip with explosive powder and a charge and you have a rocket launcher
Is your rocket being propelled as a rocket or as a CO2 powered cannon or a combination? Try drilling a few holes around the end of the launch tube to vent the pressure before the rocket body leaves the tube. A pressurized tube could exert an uneven force on the base of the rocket, throwing it sideways. By venting the tube you can remove this while still guiding the rocket straight. Nice work.
I LIVE THIS BACKROUND SING THING
very stealth rocket
Slap a slow-mo camera at the end and film the rockets launching.
They could be lethal when they come down. If is sticks in the dirt like on your video, it could knock someone out or worse.
This is awesome. Definitely gonna do this, reminds me of the rocket in iron man 3
You could make a mortar with a slightly big tube so it not snug but enough to keep it center then throw the rocket down and it shoots back out
Make spring loaded fins. That way you can get rid of the nose weight. If you put a slight bend at the end of the fin it will cause the rocket to rotate around the axis giving it gyroscopic stabilization. (Just like a rifled barrel spins a bullet).
Put rifled grooves on the sides of it. It'll work like a foster slug for a shotgun. The spin will help it stay on course. I'm not certain it'll help. But it'll be cool to see.
instead of zinc you could put a little tracker in the nosecone so that you could find it
Smoothing out the exterior of the rocket will dramatically increase performance
song is called Dizzy by Joakim Karud
Id also try using a thinner nail to pierce the Co2 give it a little more thrust time and less waste on beginning acceleration
I have no idea how you don't have at least 200k subscribers
Not my place to say but you should start your own loot crate styled giveaways once a month. Containing all that months projects for subscribers of your choosing.
This is how to have fun.
may I suggest for the key chains making a mold and cold casting some sort of metal to make them look more professional. It would also be much quicker.
basically a weapon
Literal rocket science.
It would be cool to somehow put a spin on the exhaust, it would fly way further if you could keep it stable
Well done you got me onto another project Rockets
Great video! I got a kick out of seeing Mike Thompson's video in there, I built the fabrication lab that he works out of down here in Norman, OK, pretty sharp dude.
You can increase the performance by adding less weight (CG forward) and using bigger fins (CP backwards) to achieve your stability factor! Then they'll fly higher since they weigh less.
Oh but you're constrained by the diameter of the PVC, nevermind.
You should try putting the fins on an angle like propellers so it will spin
co2 missiles that could go anywhere and hit anything but still cool
digging that harbor freight caliper lol
You don't want the weight and the fins. What you want is a long thin stick mounted to the bottom, as in a "bottle rocket" firework.
Look into the use of Acetone Vapor to improve finished 3D Printed items, easy to do and gets rid of the grainy finish left by the layer style lamination used by 3D printers. Pro Prints made easy.
Well done dude. This is amazing. Thanks for sharing!
Try making something like the Hale rockets. The fins guide the exhaust to spin the entire rocket.
Angle the fins for some spin, that will help. Also, not rockets, but a similar problem of having fins but not much room for them was the tear gas grenades used by the Czechs in the 1980s. They were only 26.5mm, the same diameter as European signal flare cartridges, but much longer. They had a longer skinny tail section to add drag stabilization they could not get from wider fins. forum.valka.cz/attachments/4461/RV-85.jpg (they were for firing through walls at up to 700 meters)
Getting a firing pin to reach up higher into a design like that could be tricky, but one simple answer would be to put the puncture pin/nail into the nozzle and have a rod from the firing spring push it, and you just dump the expended pin out of the tube before reloading.
There are also 26.5mm rocket assisted rescue flares. They use thin spring steel fins that wrap around the flare, and spring out once they clear the barrel. ruclips.net/video/KuIh4ws_i6A/видео.html
Not sure the fins will help much because they are inside the diameter of the rocket where there is minimal air flow because of a low pressure area. Perhaps if the fins sprung out upon launch also giving the rocket some spin would aid with gyroscopic stability.
It would be interesting to see if you could achieve spin stabilization by putting some twist in the fins.