You need to visit Huntsville

I big thank you to Dr. Myles, Dr. Eric Bach and Dr. Quentin Michalski for the help they provided!

How that tiny engine made that metal rod glow and bend is insane. Imagine this little engine being 100x the size.

Maybe you need to add an aerospike so the detonation has something to spin around. The Miles-Bach-Michalski engine has a central spike though it was truncated. Another thought is to move the primer to the back of the device instead of the exit port and angle it to induce rotation. The MBM engine had their starter in that position. Also being in the Northern hemisphere you will want to spin anti-clockwise so you aren't fighting the Coriolis Effect.

After following Integza for a while, I think the real question is: when is he flying to the Mars using his 3d-printed engine?

Just when I thought there were only so many types of rocket engines, my mind gets obliterated....tomato level obliterated. Phenomenal Joel!

I admire your curiosity, intelligence and drive to do something simply for the sake of learning from it young man. Good luck and safe travels my friend.

A future video for a non-conventional propulsion method for a quadrocoptor would be amazing. Something a DIYer could make mostly with a resin 3d printer and hopefully no more than $1000 of purchased parts.

Suggestion: Journey to an actual standalone rocket/plane/car - I really enjoy your content but working towards a practical, containerised engine for moving vehicles would propel you to anti-tomato legend status! I know it would be a much longer project, especially getting pressurised fuel into a reliable lightweight stand-alone format, but maybe collaborating with more like-minded people from e. g. the RC sector could make it a lot easier - In any case I look forward to seeing what comes next!

My favorite engine you've done so far!

10:51 Integza made an entire anime movie in like 30 seconds! Good job.

You a couple of years ago: I want to build a decent chemical rocket motor. You, sometime next week or so: My warp engine is running too hot.

I’m a researcher at the University of Central Florida specialized in RDE’s and Pressure Gained Devices. I have been watching your videos for a while and would love to talk more if you are interested. My next video idea would be to make the RDE combustion chamber annual and attempt to observe the actual rotating detonation. An additional idea would be to create a planar RDE which would use this exact same set up and would just be used to observe the detonation wave.

As an alternative to the primer from gun shells, you could go to a well stocked tool store and ask for the "powder loads" or "strip" for a Hilti gun (aka "Powder-Actuated Fastening Tool"). The nice thing is that those come in multiple strengths, so you can pick one that works for you.

Joel, I love how professional you remain while having a complete disregard for your own well being.

Great video and you really keep things very interesting. Would like to suggest building something to move / levitate heavy objects with vibration / frequency.

I love your videos!, create a drone powered by a rocket engine!

Integza, you are incredible, this engine has been used solely by research labs. Amazing work.

Operator: "It has previously blown the door off!" integza: "Prove it while I stand behind a potentially high velocity projectile that could squash or seriously maime me!" Crazy man! lmao

Best destruction of an evil tomato yet! Need more tomato distruction videos, but also can't wait to see the next RDE vid.

Video idea: Build an Ion drive propulsion engine! It can be quite simple, MIT made one that’s pretty much just a positively charged cable parallel to a negative, they made it generate thrust, so Basically it’s a glorified air purifier with a cable behind it. There are some other more complex concepts like the ones they use on spacecraft (every SpaceX star-link satellite has one), although they are more complicated and expensive.

After following integza for quit a while it's makes me happy to see how he started from making working stuff that looks like a grandma who's waiting it's final moment to be free to Making thing that actually works and looks like it was made to last, very proud of you integza😢

Need a follow up video to this!!

That RDE was very, very impressive 😮😎 I'll have to look through your other videos to see how you got on 👍

My theme suggestion is to create a load cell to compare the different engines you've made so far. Seeing these home-made 3D printed engines is great. But giving people context like how much force this engine is producing, and maybe how much fuel its using compared to other engines you've made, might be even better.

I've recently been stuck on spinlaunch, I've watched so many videos on there machine. And after seeing your videos here's my idea, I think you should build a miniature spinlauncher, you have plenty of knowledge of rockets and other propulsion devices and could use them to power the spin! Tomotoes are disgusting

hey if ur looking for the song used at 10:50 its hoshimuru yoruni

10:50 is gold!! Anine intro theane and silly actions centred around running and looking lost 😂

Damn Bro I still remember you working out of your fire hazard of an attic with just a 3d printer and limited knowledge, you have come so far in a impressively short time! Its very inspirational honestly! keep it up man!

It's quite impressive how you're able to make these projects, especially since this is cutting edge technology that governments, corporations, and universities are researching. Truly outstanding work!

This was one of the most interesting things I've seen in a long time. I did even know this existed and you taught me something new.

The shot gun shell's detonator is Mercury Fulminate. This is also used in the blasting caps for dynamite.

The part with you standing up against the door when it went off reminds me of when I used to work for my local utility. One day I was at the plant while they were doing an inspection of one of the gas turbines. I didn’t have much to do that day so I stuck around and watched. They finished up and went inside to spin it up for peak and I was just watching from the corner when one of them turns to me and says, “you’re in the no no square” Apparently, once the generator has synced up its voltage and phase to the grid, a massive breaker trips to connect the generator to the grid. If that connection fails for some reason there’s the possibility that all the power that generator is making will explode out, ripping the massive steel breaker door off its hinges and sending it straight through the no no square and whoever happens to be standing in it.

Man these videos are getting so good. Buddy went from homemade carbon fiber pulse jets to visiting national labs and working on cutting-edge stuff in the space of a year, all while managing to educate his audience. Well done.

Good to see those safety glasses protecting your forehead. Very important, especially while peeking around the wall at the tube potentially filled with H2-O2 mixture.

In the US our hardware stores have a brand called "Ramset" that uses primers to set nails in concrete. The primers are about $14 for a box of 100. They should be cheaper than cutting up shotgun shells if you can find them.

It's so cool to see how every video his design gets better, materials get better, and his success rate improves.

Damn dude I can’t wait to see the engines you’re making in 3 years. Every video you improve your building technique and they work better and better

What if you had the internal chamber surface raised to add to the spinning to help keep the flame going and may give more thrust

I loved the rotation detention engine. I have an idea to make a radioscope generator but don't if it can be done

Idea: I would love to see you use a piezo pressure sensor with an oscilloscope and a high speed camera so we can see whats really going on and maybe improve the engine. ( i know high speed cameras are very expensive but maybe you can lend one locally or from Dave of eevblog)

RDEs are typically an annular design with a center spike (similar to aerospike), so you could potentially try using a cooled center spike to guide the rotating detonation wace around the circumference Edit: In addition, the detonation wave propagates around at the inlet of the chamber so your ignition source/detonation seed should also be closer in that area

What if you used some type of impeller to rotate the gases before they enter the detonation chamber, or another way might be to introduce the gas at a 90-degree angle into the det-chamber? Would that help to initiate the rotation of the wave?

7:32, okay I don't know how this happened, but this is the first video of yours I've watched, and when I got to this part I couldn't believe it because I literally started this show yesterday.

This is so awesome. Pretty insane that we get 5 min of incredible footage that probably took months to plan and bring together

This guy is insane, that's some amazing high speed footage too Also, using a smaller engine to start a larger engine is not terribly uncommon. They're called a pony engine usually, and a lot of industrial engines and tractors have them.

Any chance we can get a link to that Japanese paper?

You can make a suitably sensitive primer type powder using Armstrong mixture from matches. The gun powder you used is actually smokeless powder, it’s nitro based and burns slowly at stp but burns much faster under pressure. Black powder (the old sulfur and charcoal stuff) burns faster at STP but doesn’t increase burn rate with greater pressure.

Two ideas for future videos: use one of your amazing engines to power an RC car, or do a comparison video, comparing some of your engines based on thrust, fuel consumption etc.

Very interesting, maybe you could get that ignition to reach resonance with the chamber using a sound pressure sensor and an arduino

The level of your videos are improving everytime, not only in design and performance, also in post production, clips etc.

Just a note for future projects. Instead of harvesting primers from shotgun shells you can get what is essentially just the primer on its own. Its commonly used in some nail guns as a way to drive nails through harder materials. No clue if you need a special license for it where you live though.

I think the issue might have been that you're not spiraling the airflow before it gets to the nozzle. That seems to be the way to get the detonation spiraling.

I need to get "sponsohrr time" as a text ring tone!! makes me chuckle!

This hands down is your best project yet, and that is saying something since your other have been better that the last for nearly a year straight now! thank you for this channel! keep it up!

Perhaps before things get (more) dangerous... an episode where you investigate the best blast protection solutions?

Hey there Mr. Integza!!! I just wanted to say that gun powder does explode. It just needs to be put into a container. When you ignite the powder it quickly turns into gas (keywork: quickly). When the container can no longer hold the pressure of the gas released by the gun powder then the container rips apart allowing the gas to be expelled forcefully in all directions. That's an explosion.

It wasn’t just the F1 but the SSME also had problems with acoustic instability as i recall

I swear every video gets me more excited to see what the next one is. the rocket engine experiments are so cool the way you do them

oh man integza this might be my favorite video you've ever done! the break in the middle where you're playing the japanese song and cut the tube in half with the little effects and stuff is so great.

Could you use a glow plug for your initial combustion to start the spinning detonation. It should provide a stable & consistent heat source. To ignite the rotating combustion ??

I really like your videos and I am curious if you could use the concept of a microwave emitter to create spiraling ignition for your thruster

Primers used to be mercury fulminate, but now they can differ between brands in their composition. The main thing is the powder, it must be compressed very tightly to itself and in a confined chamber to achieve the reaction speed you want just like it is when the shotgun shell is put together. It can also be rather hard to ignite properly which is why the primer is used for repeatability.

Idea as part of the next video: a proper (transparent) blast shield! With the explosive nature of projects on this channel it could come in handy!

Would you be able to create spiral impressions similar to the ones that guns have (called rifling) to kick off the rotation as a guide for the initial combination?

Could you share the paper you used to build RDE thank you

You know if you build a simple wire EDM lathe you can make parts with tungsten, and I hear that handles heat pretty well

A very neat test! I don't think you got to actually make a rotating PDE - but that is a descent attempt. I would love to see either form of 3D printed PDE actually taking off up in the air. It probably will have to be a theathered flight test... But I am doing more than just asking - community effort, right? - I'm also offering - I am more than willing to machine parts for the project too!

Just a thought, and a question... Is there a annulus in the zone of ignition? I assume the primer fires into the chamber tangent to the inner wall. I wonder if you could get reliable rotation with a cylindrical/conical part attached to the forward bulkhead that would help confine and direct the detonation to propagate in the correct manner.

What is the title of the japanese article or are there any links to it?

Did…did you just build a rocket motor that…actually worked?? As someone who’s been following your progress for a few years (or at least it feels like it) I am very happy and proud to see this

After all these engines, I'd like to see you build a generator! A turbine gen like a jenbacher would be pretty cool.

btw. Can't you paint the 3d Printed stuff with some heat resistence and reflective paint?

Modern shells have smokeless powder which is different from blackpowder which is what was the original gunpowder.

You are really crazy! Please keep going! :))

💡 idea: build a liquid cooled rocket engine so they dont melt down!

Could u use magnetic propulsion to launch spacecrafts using traditional engines only after the craft has left a mag lev track that is arched upwards

This is a super cool vid! I wonder how our world would be so much better if forgotten and discarded tech and ideas had never been discarded and forgotten.

I know it's probably unbelievably unsafe, but the human male inside me wants to see this made into a firework and see just how high this thing can go even at a microscale like you used. I bet it would be crazy amounts of initial thrust.

Integza, with his moustache, shaved off all of his limitations

when i first watched this on release i didnt notice all the glass in the room, a proper detonation might have blown out the glass on the unit behind you etc,

Hello, you are doing quite advanced plasma thruster experiments. I'm curious about the voltages used between the electrodes, the current and what working gases they use. As far as I remember, the best would be noble gases, such as argon and xenon. Congratulations and best regards 😀

I believe if you add a little bit of restriction to the nozzle of the engine, like the metal one in the lab, it will allow for a little bit of pressure to build on the inside which might help promote better detonation. It seemed that you had an original detonation followed by deflegration

this is actually insane, ive been watching you religiously since you started, going from pulse jets to actually pushing forward hobby solid fuel rockets

Nice video. Anyway to incorporate RDE with a turbine at the end? The output of the RDE rotates and so adding a turbine may create a more efficient engine….? Hopefully

Can’t wait to see a tomato vs the next RDE 😈.. impressive project btw! 👏😎

I kind of want to see more from this RDE guy. Super interesting subject and he's very engaging! Also that setup is absolutely rad!

Perhaps add some flutes in your acrylic chamber to "guide" your detonation into rotation. Flutes or vanes...

Could you list the paper you got?

Wow.!!! Now including interviews with scientists and engineers, shows how genuine your work is. Your humour is what makes your channel, pure class. I look forward to every post you do.

You probably gathered this but you're probably going to need to design a better arrow spike similar to their's. It looks like they had to focus that gas path a lot in order for you to push a literal wall of air. Also look into a Pocket NC milling machine if possible. (For this project as well as others this, will save a lot of heavy metal headaches.)

As improvements to the project Add a bigger tank as used with paintball guns Add additional cylinders and better air injector valves.

You should put some sort of rod in the middle for the detonation to rotate around

I like how much he never lets anything get him down, he keeps saying n trying.. it’s great!

It is amazing how many discoveries emerge from, spin. (Up, and to the right.)

You’re a massive inspiration. You make high level research accessible and understandable. Part of me wishes I was still in physics.

I am inspired by your work, it educates me a lot. I like the fact you are funny at sometimes very educating.

Question? Can an RDE be used to spin turbines really REALLY fast & how can WE use it???

Fun gun/primer facts. Most modern primers use lead styphnate and a blend of other herbs and spices. However, older ones use lead azide, or mercury fulminate. Also, smokeless powder like what’s found in those shot shells just deflagrates, it isn’t a detonation like Black Powder does. Different powders have different “speeds” they build pressure at, pistol powders reach peak pressure faster than rifle powders (generally). If you’re looking to repeat this, check out primers for muzzleloaders (usually called caps). In heavily regulated countries they tend to be easier to acquire than centerfire primers like the #209 in that shot shell. There are also companies like Prime-All who sell primer component mixes which are themselves not regulated and not explosive, but can be used to create a primer mixture. Great video, and it’s a bit funny to me that it’s so tough to get ammo components there- I can buy them at my hardware store!

I just still watching Integza just to be sure that I won't miss when he blow his room away.....