Making Shock Diamonds with a 3D Printed Rocket Nozzle

[@integza]

Great work! Keep it up

[@Sciencish]

Oh dang, I got a KZbin alert and saw Integza but thought “Great work” was a weird video title haha. Thank you! love your videos, and just watched your aerospike video, that ceramic resin is some crazy stuff!

[@hamadaag5659]

Hey integza nice work with the aerospike too bad it blew up :( Nice to see you here!

[@dain1s]

Actualy, he almost made a pulse jet, sooo... yeah... Well what i'm saying is: when he started the fire in the bottle, at the end it started pulsing, but in low frequency. Integza, i think you too my friend mey have stolen the idea from this guy!

[@risingmoon893]

try makin a pulse jet rocket engine hybrid

[@daylenhigman8680]

AYYYYYYY

Keep the failures in. We sometimes learn more from how we fail than how we succeed. It also shows that failing is perfectly ok, since it means you started with the experimentation.

[@GrahamFox]

okay the joke checklist got me

[@tonyholm77]

It's insane how such an basic physics law can get so complicated fast. Really liked the aerospike nozzle

[@Fireheart318]

The more I watch KZbin, the more I realize my school failed me horribly :(

[@miranda.cooper]

Yeah they could've just let us watch KZbin instead of interrupting our learning.

[@blar2112]

Hey, its a bit late, but the 4th nozzle its not technically an aerospike, since the "spike" part does not portrude beyond the external ring, what you have is a circular bell nozzle.

[@andrearomano1911]

I see, you're a man of culture as well

[@themiddleman9376]

Well i came to see real carbon diamonds form in a rocket engine in some new pressure diamond thing. Kinda but not really disappointed. Good vid.

[@NOTNOTJON]

Also came looking for carbon diamonds and realized after about a minute that rockets do not in fact shock carbon materials into diamonds. But if 2020 has taught me anything it's that you can't skip forward in life, so I got some munchies and watched the whole vid. Good non-carbon diamond content.

[@americannomadnews5370]

This is the funniest animation of how to explain rocket Dynamics I've ever seen.

[@Helmut314]

Awesome. More rockets, plz.

[@airgrphxable]

duude that might be one of the first (if not the first) flown aerospike, good work. Also cool diamonds

[@awlomthesheepermen]

Who knew Tom Holland knew how rockets work

[@richardhanck972]

Next step, how to introduce pressurized alcohol and oxidizer into the bottle (combustion chamber) at a rate that keeps the pressure above critical for continued combustion and thrust, but below that for a rapid unplanned disassembly event. From there, designing a nozzle and combustion chamber that can take the heat of continued combustion. I think your "pressurizing fuel with air" problem would be most simply solved by a can of OC spray. Or rather the mechanism by which the OC is pressurized. Basically, the OC liquid is in a bag inside the pressure vessel of the can. It has a valve and tube attached to the bag such when the valve is opened the pressure of the gas in the pressure vessel forces the liquid through the valve and out of the pressure vessel. The pressurizing liquid and the OC (fuel, in your case) would never come into contact and thus the chance of ignition is reduced quite a lot. That has your fuel pressurized. In theory, you could pressurize your fuel and oxidizer (assuming both are liquid) at the same time, by having two bags in the same pressure vessel (with the proper volumetric ratio). Designing for the proper flow rate shouldn't be that hard.

[@PAWORDI]

that's why they've multiple stages however, a inverse bell nozzle widely known as aerospike nozzles can have in a single stage rocket but it's not used due to lack of knowledge about them !

[@skc40]

thanks for fuelling my curiosity! :)

[@lucacollas]

dude, your channel is ready to blow up! Top tier content.

[@emel60]

Soon, very soon, young man, you will pair well with the top of the YT backyard scientists. Keep up the good work!

[@napiton]

The color of the flame comes from the sodium and carbon of the saw dust. I think the flame can be colored more easily by putting salt into the bottle. It might make more intense color and make the diamonds more visible. If used different salts,different colors will accor.

[@jamessolacito1611]

that checklist was the final thing that convinced me to subscribe

[@ptrkmr]

The issue w the non-spike nozzles is that it doesn’t seem like the fluid is reaching Ma1 at the throat of the nozzle. In order to get shock diamonds the sound barrier has to be broken at the throat of the rocket otherwise if that condition isn’t met it won’t form shockwaves. Air traveling faster than sound will behave much differently so if you don’t reach Mach 1 by the throat you won’t get any shockwaves. Not sure if you took that into consideration but just thought I’d add in

[@Sawer]

That intro bought you a new Sub :D

[@spencerchapman9327]

this is the best explanation of shock diamonds I have ever seen. Great visuals and explanation!

[@iwanawithyou]

nice vids! your channel gonna blow up! keep it up.

[@PlaneAwesome]

Puns, 3D printing, and rockets! Subbed!

[@maxk4324]

If you switch from alcohols to non oxygen carrying hydrocarbons like zippo fuel (which is naphtha, don't use normal lighter fuel which is pressurized butane) will probably give ypu more visible shock diamonds. The hydroxyl group in the alcohol forms water, oxygen, and hydrogen species (species = types/classes of molecules present in the combustion products) which don't release a lot of visible light like carbon.

[@zachreyhelmberger894]

What fun!!! Great work!

[@marceli-wac]

Wow, you are hugely underrated my friend! Great video

[@elitewolverine]

loved the aero spike one. Good Job. You should print in Polycarbonate...

[@traviswilliams3209]

Not sure if you've seen fire caulk at hardware store, but its a decent glue as well, maybe a good option to keep around for next time you want to blow stuff up :) it also comes in a foam spray.

[@calif94577]

Add fins for stabilization and launch it!

[@BloodyMobile]

Bottle goes whoooosh!

[@incog30]

A rocket that didn't work is better than no rocket at all.

[@BikiniDuckCreations]

The shameless plug was funny. I'm def stealing that :) :)

[@morrisputman8592]

THIS IS AWSOME DUDE!

[@NREYTERYREYTY5fddffsfdf]

Amazing but the reason the first one did not work is the combustion chamber had no oxygen in it which choked the flow so you need either oxygen gas or liquid oxygen(lox) for efficient combustion

[@thomascameron683]

What's the pressure at the inlet and what's the outlet ratio to the inlet?

[@gierdziui9003]

it is amazing! Now add fins to it and like 3 stages. Dirt cheap sth heheh keep up the great work!

[@Guffy1990]

Nozzle #1 is my prediction. EDIT: Darn.

[@kevinhurley6919]

Try nozzles for sugar rockets

[@slevinshafel9395]

Now make sustainble botle diamond rocket. At least to take some payload to the LEO. xD

[@jiss8627]

Let the algorithm bless you

[@mcb187]

Can you please work on the big rocket? I mean if all else fails, you could just use tanks from a blowtorch (high pressure, burns well...)

[@henriquera]

would be nice to find these nozzles models on thingiverse...

[@American_Innovation]

Dang, great minds think alike, had the same video planned since August I haven’t finished it. I feel like I’m a smaller version of you, humor included 😂 I’ll watch one more video and decide if I’ll sub

[@reznov122]

this guy even sounds like peter parker

[@stocky9218]

I think that rocket science isn’t the rocket engine itself but instead it is the orbital mechanics or maths

[@Sciencish]

It’s more of a slang term used for lots of different aspects of rocketry(or just anything considered complex), but design and construction of a rocket is definitely a part of ‘rocket science’ haha. Aerospace propulsion, flight performance, orbital dynamics, and attitude control are all pretty common divisions in aerospace and I’ve heard them referred to as rocket science, but propulsion is definitely coolest haha(they’re all really cool tho)

[@microcontrolledbot]

4:35 If you had a Prusa MK3S you wouldn't need to worry about that

[@AlChemicalLife]

with a channel only a bit bigger than mine , you deserve a much bigger audience ! Great Video !!

[@AllenKll]

Not being a rocket scientist, I spent the whole video, up till your success, thinking that "Shock Diamonds" where compressed carbon made from some shock pressure of a rocket engine. I do wish you had explained what they were earlier in the video to properly set expectation. Especially the "just laying around everywhere" comment, made me think you were talking about physical diamonds.

[@danielavanoostenslingeland7445]

Could someone explain how a PVC pipe as a combustion chamber does not melt?

[@hylbertvonmayhem6562]

Awesome !!!

[@samnease5271]

Make a hybrid rocket

[@samnease5271]

kzbin.info/www/bejne/pomXf4OBg8-Gd6c

[@ARJUNTHEAIREBENDER]

Great work! I was so inspired by this video that I wanted to build my own shock diamond generator 😅. But i was not able to find any resources on the throat diameter and stuff... Do you mind sharing your python code ?

[@VikashSingh]

Subscribed for the re-evaluation of your approach. #TrueEngineer. keep it up buddy :)

[@gaeel330]

Is that the cheapest liquid fuel rocket on KZbin? Looks like you got some serious thrust out of a few hundred grams of plastic and millitres of alcohol, would love to see a few more runs on some scales to see what the thrust is!

[@Sciencish]

I chose my next project specifically to teach myself how to record data from a load cell. so while I don’t know when I’ll revisit, I’m making sure I have the skills to do it!

[@namibjDerEchte]

@@Sciencish You could literally just use a fast-responding kitchen scale that already takes about 2 digits for the weight of the bottle pre-ignition, and just point the camera at the display. Just do a pointy end down, flamy end up orientation.

[@Sciencish]

That’s gotta be my favorite description of a test stand haha. I thought about it, but the scale I have is too slow and I didn’t want to buy another one for such a niche use, plus this way I can easily graph it and compare nozzles

[@royhsieh4307]

5:06 The picture when Peter Parker dressed like Bruce Wayne and doing Tony Stark's work

[@lllBAMlll]

Soil pile or mound builder remnant?

[@Sciencish]

Just a big pile of fill dirt from pouring a slab for our barn nearby

[@DrawdeThePotato]

Random idea.... Add a rc super mini motor and compress canister.... The one from Amazon for airsoft guns... Then print a rocket case and other pieces!!!!!!

[@lnterference]

6x diamonds means the thrust is 6x speed of sound!

[@sharadthecurioustardigrade1533]

Not actually

[@malakiblunt]

Keep going- be ambitious , you've got what it takes -love the shameless plug

[@noelsnave9395]

So like if I put wings on that rocket and attack it to a pol. I could aim it anywhe I want?

[@DylanEdmiston]

Cool video

[@Sciencish]

Thanks! You’ve got some pretty crazy stuff on your channel

[@DylanEdmiston]

@@Sciencish Thank you!

[@realisticthinking3019]

i thought those were called Mach cones. i was excited to see you shock carbon into microscopic diamonds lol

[@yashasgogna6171]

Can I get the files for the nozzles

[@ronritzel5942]

Do you have those nozzles posted on thingiverse or anything?

[@triogaming4077]

One big design flaw with the initial system is your chamber to throat area ratio. Let's see with your specific heat of about 1.1-1.22, and your expansion ratio of about 2 from the looks of it, you are loosing 5% of thrust off of energy off of adiabatic heat transfer alone.

[@triogaming4077]

Never mind I was looking at exit area my b. However you seem to not have enough exidizer for the combustion.

[@triogaming4077]

You seem to run this thing like a jet, without the intake to support it. It is like mowing a lawn with scissors. air is super low energy and you need a BUNCH of it to sustain isotropic combustion

[@operator8014]

Lol'd at that intro.

[@lets_play4288]

hey i wanna also try the aerospike nozzle on the woosh rocket, where can i get the models?

[@Sciencish]

Sorry, I don’t publish the files for projects that I could see people easily getting hurt with

[@lets_play4288]

@@Sciencish oh thanks for letting me know, will not try. It looked simpe to me!!

[@simo9445tsns]

nice

[@MrDeikas]

Happy algorithm

[@burggerbig102]

omg, I love the animation. hahahahaahaah

[@Tukumnieks98]

stl?

[@RonKan69]

wait isnt it mach diamonds?

[@ragnorockcookie2868]

I like your video but I think you need to switch bottles when you use it for launching because each time you use the same bottle it ends up having more openings for the gases to escape from the side not through the nozzle itself. Well what I'm practically trying to say is that you're losing efficiency of your engine

[@greyorff7292]

dose anyone have the cad files?

[@danieldoes4568]

Do you have a STL file for the nozzles?

[@Spedley_2142]

it strikes me that most of your results are just from the higher pressure and flow rates from a constricted nozzle. Shock diamonds are cool but like the first part of your video, they don't contribute to thrust. You need to maximise pressure and flow at the throat and then maximise thrust from bell shape.

[@youneszoughlami1290]

I want za dreedee print faail

[@elijahf111]

he looks like Tom Holland

[@ExerNetra]

Add some more music!

[@Mr0o0o0o0o0o0o0o0]

Actually this is pretty close to both Elon and Jobs (and the standard engineering doctrine) philosophy of "keep it simple stupid"

[@linecraftman3907]

your aerospike is just a toroidal nozzle , the spikes has to be exposed to the ambient air

[@linecraftman3907]

great video though

[@Sciencish]

I’m no expert but to the best of my knowledge: It’s a truncated aerospike, just truncated clear to the same level of the outer rim of the nozzle. A lot of aerospikes truncate the spikes since cooling the tip becomes impractical very quickly and trapped exhaust functions as a decent replacement. Toroidal vs linear is just a general description of the geometry, circular vs straight.

[@linecraftman3907]

@@Sciencish that's not the problem, the problem is that you have walls around the spike. It has no way to interact with ambient pressure

[@thesmithingsmith5752]

liked and subbed because of the shameless plug k

[@patjohn775]

Can I have your python code? I want to build a real rocket with my 4 yo nephew

[@Sciencish]

I don’t release files that I feel could be dangerous. Also I couldn’t read at 4, let alone take personal responsibility for my safety so I hope it’s a joke haha

[@patjohn775]

Sciencish I understand. I’m a software developer so I’d be doing all the python reading and rocket building. My nephew really just wants to push the button launch button and pick colors. It’s okay I’m sure I can find similar code online and understand your hesitation. It was just nice to know it works

[@collin5353]

This feels like Michael Reeves but with like half a plan and an engineering degree. Subscribed.

[@leopitrelli]

Exactly! I just found this channel, and I am in love. It's also pretty inspiring!

[@camcam-uw5mx]

Everyone know that scratching out not for pressure stickers makes the item for pressure

[@CuervoRC]

I was so excited to wait for this video that 5 months ago i managed to make shock diamonds with the same system as you. I was trying different nozzles to put in a bottle to get maximum thrust,I even made an aerospike, and in the end what turned out best was to make a hole in the cap with a scissor. 🤣🤣

[@Sciencish]

I tried that too, but for some reason absolutely no exhaust was visible, so I couldn’t see if there were shock diamonds. But it did seem to output a similar amount of energy

[@bjarnivalur6330]

6:00 "how do pros take gloves off" - Start by pinching the base, or the cuff, of the glove and pull directly toward the fingers of the hand you're currently degloving (don't Google that term btw), the glove should now be off and turned inside-out, scrunch it up in the palm of your still gloved hand, then put a finger under the cuff of set glove and pull like you did last time, you should now have an inside-out glove with another glove inside it and, if everything went smoothly, without having contaminated anything.

[@garret1930]

Thank you for telling us not to google degloving

[@bjarnivalur6330]

@@garret1930 You googled it, didn't you?

[@garret1930]

@@bjarnivalur6330 oddly enough, I already knew what it was from a conversation with a nursing student a couple years ago.

[@deepstonecrypt]

@@garret1930 uhhh im kinda too scared to Google it could you give a little information about it? XD

[@paulweber6376]

@@deepstonecrypt It's basically the raw muscle tissue. From an injury where the skin has been ripped of.

[@jackiecs8190]

I'm so glad you included your failure!! Without that, it would have been only a cool demo, and not a valuable lesson

[@l.vazakas2501]

So underrated! I hav never seen a similar video. If you make a whole liquid fueled Engine your channel will blow up, unlike the engine I hope..

[@dsfghzxc6604]

someone walks in a building with a pinapple pizza, everyone runs towards the door because they want a slice

[@XseuguhX]

What world do you live in, bud? :D

[@Sciencish]

Not one I would want to live in haha

[@dsfghzxc6604]

@@XseuguhX the best one :)

[@dsfghzxc6604]

actually... maybe the worst one... there's no slices left and i haven't had one yet

[@Mp57navy]

@@dsfghzxc6604 No normal person puts sweet things on pizzas.

[@Maxjoker98]

This is great, you deserve more subscribers! I can clearly tell a lot of effort went into this. Maybe the proper rocket didn't work because you'd need a better ignition source, or because the combustion looses to much heat in such a small engine.

[@3DprintedLife]

subscribed for the futurama reference. Good stuff, keep it up!

[@Sciencish]

You’re the first person to say something about it haha, nice to meet another man of culture

[@nghty89]

**eating pineapple pizza during video intensifies**

[@onescndstudio]

Same

[@deeeeeds]

This was one of those videos that I started out thinking, "okay yeah I know how that works" and then quickly realized I know relatively nothing. Very well done though, clear, concise, informative, quality is good.

[@gnubeardo]

KISS in action. Nice work, that skill will serve you well.

[@andrewreid9511]

Father:"Son, why have you made a pile of earth?", Son:"Tis my rocket BARRIER father". Lol 3:24

[@bittenbroccoli9901]

Please nobody dislike it is at 69 dislikes and this video is to good to deserve anything but the funny number.

[@WhyuhereE]

DUDE WHY ARE YOU NOT VERIFIED, you seriousy deserve more subs

[@earthisacube_lul]

that's a great vid! could you possibly upload the cad files for the nozzle pls?

[@charlesyoung8600]

Are you serious? Who doesn't like this. Good show dude, good show👍👍👍