DIY Rocket Engines - Easy and Cheap! 

Drones, crowd suppression devices, explosives, rockets. This guy is planning something big.

"Well, I wanted to find a better way to find and remove a splinter from my finger. After some research we decided to build our own MRI chamber, so I started to do research on it and it turns out that to generate magnetic resonance images you also need so-called Perchlorates, which is a chemical compound also found in the surface of Mars in rather large quantities. So we turned our anechoic chamber into an interplanetary spaceship. And that‘s why we launched a colony on Mars so I could take an MRI of my finger, which altogether is also cheaper than your regular MRI facilitated by the US health care system."

I would have paid to have a teacher like him in high school. An hour long video that seemed like 10 min. Thank you for your hard work!

I’m almost 50 years old and it’s amazing how you have inspired me to take up chemistry as a hobby now at this stage in my life. Thank you and please keep them coming.

As a Veteran Air Force Rocket Fuel Handler I found this video really fun to watch. I used to work with UMDH hydrazine and N2O4 nitrogen tetroxide. These were extremely dangerous and poisonous chemicals that we worked with in amounts in the tens of thousands of gallons. I would love to spend a day in this guys garage.

"it's nice to know you could" I loved that comment

RU-vid algorithms may not prefer your super detailed longer videos, but we do, thank you for putting us ahead. Respect..🙏

This video was the same density of information as my university lectures have, except the topic is really interesting so watching through a whole hour is done with little effort. Kudos to you and your team!

This was phenomenal. The camera zoom and focus were great. This was an extremely professional video and incredibly informative!

I watched this on Christmas Eve, and here in Sweden we give the gifts on this day, and this video was like a real good christmas gift. I was like a kid, "yes, yes, rockets! Yippie!!".

Tech Ingredients not long ago: high explosives Tech ingredients today: DIY rocket engines Tech ingredients tomorrow: radar and GPS-based tracking for high speed projectiles

Had fun with Estes rockets as a kid and later got my daughter into it as well, but my dad always used to say that he refilled his own rocket engines back in the day. Finally got to see what's involved. Thanks much.

Wow, this video was outstanding! Thank you so much for teaching us in such a great way. I love your meticulous explanations, your care in showing us every detail of the process, and your eloquency. Greetings from Germany :)

This channel has to be the best for us slightly unhinged nerds and geeks who just love to experiment. I've even done some of this stuff myself, but nowhere near as well! He's like the dad we all wanted growing up.

First recommendation of this channel for me, the algorithm has been sleeping on the job. Within two minutes I'm thinking "why am I not already subscribed to this guy?" Then he puts emphasis on safety, then he mentions Scott Manley. *C'MON RU-vid, YOU HAD ONE JOB* Anyway, subbed. Thanks.

I can't believe this video is more than an hour long.. It felt like ten minutes the way it just sucks up your attention. Absolutely amazing quality! If chemistry classes were like this in my high school I would have been a chemist right now.

I remember when I first found your channel, it was at the very beginning and immediately subscribed. I was so afraid you might not get traction and shut it down. I'm so grateful others have found as much value in your channel as I have.

I'm reasonably certain that I could follow your meticulous instruction over a radio...you're BRILLIANT at how you convey your subject matter! Thank you!

Probably the most intuitive introduction to practical rocket science one could find online.

I was in a rocket club when I was in high school sixty years ago. You remind me of the very excellent instructors there. We even had a liquid fuel engine that ran on acetone and compressed air. It was pretty heavy, so it never went very high, but it had a gyro and a gimbaled nozzle. That experience was life changing for me. It didn’t just teach me math, chemistry and rocketry, it taught me confidence, caution, and, above all, how to think. Your site is right up there with the Royal Academy. Thanks so much for this. Really excellent.

So informative, it was sad not really being taught chemistry and so much of the world being confusing early on. Amazing creators like you give so much understanding to the people in the world it's truly incredible.

When we were growing up, imagine if we had access to teachers like him. How many more of us would have ended up as scientists.

Very rarely can someone captivate my attention for so long ( i normally realize that they actually know less then i do lol ) but you sir are a different animal. I like your broad knowledge and the way you have to clearly communicate it. We feel your passion, and it shows in your videos. Thanks you so much and Merry Christmas to you too!! Looking forward to see the motors thrust test result!

Having voiced my concern and surprise about ammonium perchlorate, I have to admit that this guy or outrageously detailed, and well spoken. I appreciate this.

Great video. Very thorough. I used to make sugar rocket engines when I was a kid. I like that you played around with different oxidizers and catalysts.

No BS with this channel. All business. I respect that a lot. Thank you for the excellent content.

I'm going to go out on a limb here and say you're probably on a first name basis with your local ATF agent. I'm kidding, of course. But I do hope you hit that last 5k before the New Year. I can only imagine the amount of work that goes into this channel, but I can definitely say it shows. It is far and away, one of the very best of its kind on here.

My respects and full support to this guy, his videos are extremely high quality, in both production and information, congrats and thanks

Everything about this channel is amazing. Thank you for this material.

Yes! Great to see another long-form video from you guys!

Always a good day when tech ingredients makes a new video!

Going over the newest comments I was delighted to see you speaking with your audience. You earned both my respect and a subscriber.

What a great science lesson, and video! Your commentary is concise, and kept my attention for the whole video!

"Today we're gonna *do* rockets" >1 hour long oh shit here we go

I appreciate yours and your son's enthusiasm in your projects and dedication to completeness.

This video brings back memories of my JROTC training in high school. We spent about a week on rocket engines. One thing I remember is you can change the shape of the central void in the grain to vary the burn rates. That was almost 40 years ago, so I don't recall any specific shapes in the text. I can visualize how a cross or star shape would burn differently than a round hole would though. Great video! 👍👍

This was exceptional! Kind of amazed when you picked up the Ammonium Perchlorate, being familiar with that stuff, as I did not realize that it could be obtained outside of the Space Program. We in Henderson, NV. remember that stuff. Last amazing videos of yours I saw were the SPEAKER panel tests. You are an incredible teacher!! Thanks!

Thanks for showing safe procedures for handling these materials. Some friends were careless making rocket candy at the beginning of the year and started a fire.

This man was a born instructor. To make such a dry subject interesting and informative at the same time is a talent few people possess.

How nice, back in the day we did not have all this fancy modern way of building model rocket motors. Our casings were roll with glued paper bags over maderals. They hardened after a few days, the had to be inspected and sized, plugs and nozzles were made from pounding fire clay and grog with homemade maderals, all our tools had to be made as you could only order the chemicals, scales, and things already available for other uses. It took much longer to do this and then build our own Dinamo meters to test thrust out put, but that only came after hours of testing motors under ground due to many failures. It was fun and I put many years into this until I had a reliable safe motor to use. What you have to now and just order is incredible to me. I wish I could start over, but I have to many medical issues right now. Good video, nice safe shop you have thanks for passing this down to next generations of young people. I still hold a certification in High Power Rockets, mostly as a donation. Although I might attend the LDRS in Black Rock if I am well enough. Thank you.

I did so enjoy your presentation. Good job. Started trying to construct rockets in 1957. We would skim match head material and place it in small tubes of paper. Do not think we ever got lift off. 73 years of age now and fortunate to be here, intact. Couple years later we did a match head piece of 1/2 inch copper tube. Got our attention. Even did some stupid shit in VN. Big fan of black powder as well the flash powder. Grew up with original Cherry Bombs, M-80's. Still have some supplies, scales, grinders. Getting warm in my area, so many projects on my list. In highschool we were scraping Pidgeon shit off tree limbs for nitrate. Enjoyed your information as well the delivery. Thank You.

One of the few creators that gets an automatic like before I even watch the vid. Huge amount of respect for this channel.

What a tidy and clean workspace! I don't build bombs or stuff but when I am done with a project it always looks like one went off anyway.

This gentleman is teaching engineering for free. such a valuable lesson with practicals. WoW!!!!

I respect the fact that you showed your troubles. That really made the video stand out to me.

Always appreciate when someone way way smarter than you decides to take the time and care to teach, simply because they want to share the exciting things they know with you.

when ever I see videos of someone who is quite big on youtube trying to make sugar rocket motors, they tend to make a lot of mistakes or just have poor methods. you pretty much nailed everything. only thing i can say is give tips for improvements. you can use a few drops of sodium laureth sulphate/ SLES (the surfactant in shampoo and soaps) to thin the fuel as much as possible. Richard Nakka has a video detailing its use. You may also want to try making a reusable motor out of metal. this will allow you to only need to make fuel grains for each firing. With regards to storage, its best to store it in an air tight container with desiccant to keep the fuel dry otherwise it will pull moisture. the only fuel I've ever used that just does not pull moisture uses erythritol. Another thing is that fuel with iron oxide in it does not store long term, it does something to it that causes the motor to always explode. anyways. good video

Thank you! I thoroughly enjoyed all experimental sciences ny whole life. But hit a big depression era ss I turned 41. Your videos have been drastically helping reignite my science spark again. Truly Thank you!

This channel is amazing. Thanks so much for this and your support of the NAP.

What I learned today: When making coffee at the Tech Ingredients World Headquarters, be very careful when selecting the bean grinder.

I love that you said to use a vacuum when machining the graphite nozzle and immediately thought to specify "vacuum cleaner". Because this is EXACTLY the kind of channel where we might see exotic vacuum machining processes being applied!!! You guys rock.

Great video, phenomenal teacher! I will be watching more. Thanks!

I am so pleased to have found your channel. You explain everything so well. You make it easy to understand what is going on. I look forward to watching more. Thank you John

First video I've seen from this channel. You're an incredible speaker. I can't quite describe it, but the way you've essentially spoken for an hour straight without too many cuts and in such an engaging, easy to understand manner is amazing

Thank you for making that one video instead of a five-part series of tiny clips released one a day to extract the most views possible. You get my sub!

So much thanks, what you do is invaluable, great work from Australia

Hello Sir! i just stumbled upon your page. I absolutely love your technical descriptions for everything you do. i have been in hobby pyro for all my years. professionally licensed shooter when i turned 18. over 20 years i have been exparimenting and dabbling in alll sorts of different compositions. your channel is inspirational and i will continue to watch and learn! thank you

Your long videos are fine because you don't pad it out with pointlessness, every minute is worth watching.

Your son is lucky to have you as an father🥰 Cool now I can make a rocket if I want to! Thanks for sharing! Have a nice Christmas!

Rewatched November 1st, and at 642k subscribers! Over the goal with a month to spare! Congrats guys!!!

Thank you so much, I'm so glad to have stumbled upon you. I missed my calling in high school because I was lazy. I have resparked my imagination and I'm gonna change the world with some new ideas in physics and chemistry. I'm 59 years old and I want to Set an example for others 😄I'll at least change the outlook of my family and friends

My favorite cooking show.

You are the best when it comes to explaining what you do. Thank you!

This is the first of your videos I've viewed. What a tremendous resource!! Thank you for going through all the science. This is absolutely awesome!!

Best pourable sugar propellant I have seen. The use of ammonium nitrate/potassium salt mix with sorbitol, impressive.

Magnetohydrodynamics is just an excuse to play with rockets. I like it.

Thank you. Really enjoyed that, technical enough for us newbies without a BSc!

I think you have the best RU-vid channel for (DIY) tech! I think if you put your mind to it you can do whatever project you want. I really like the broad information. Thank you so much!!

I'm glad to see you've reached your 500k mark. Congrats and deserved.

When I was a kid in the early 80's I I pressed sugar + potassium saltpeter with a hydraulic jack into my rocket engines, this method blow my mind. You are the best !

We all wished for teachers like You. Now I am old and not as interested like a kid but I still wish for more people like you with passion and great skill in telling what you mean to convey in understandable and interesting manner.

Benn watching RU-vid videos since it's inception. I like how your just about the ONLY 1 who does this step by step, without that monotone, virgin, clinically depressed cereal killer kind of voice. And ur the only 1 I'm actually going to donate to.

Time for a little _Rocket Science™_ *(literally this time)*

Honest could watch you explain anything. Really good style, explains things slowly and thoroughly, no bs, just the facts. Well done.

Wow I sure wish this would have been available when I was exploring rockets back in the 70's. Great presentation ..

I absolutely love your analogy and way to "visualize " how a rocket works. You are an absolute RU-vid legend!!!

The chemistry, history, and fun of the practical is everything. Thank you.

27:42 Thank you for using an audio compression here when you turned on the coffee grinder.

8:00 - in all the years I've been watching science and rocket videos on RU-vid, you're the first person I've seen who's explained rocket thrust in this manner. Everyone else just talks about Newton, conservation of momentum, reactions, etc. None of this actually explains thrust, this explanation does. I first came across this explanation in a children's book on space flight - I think it was in 1968 or 69 (not a coincidence - everyone, including 7 year olds, were crazy about space flight and rockets back then). The thrust would be the area of the opened door multiplied by the pressure (or pressure differential) in the room. Excellent!

Fascinating. You put a lot of effort into your production.

It's not often a video of this length keeps my attention without skipping bits, but I watched every second of it. This is quality. Thank you.

What got my attention was that you seemed to allude to the method of layering the different regression mixtures so a solid fuel rocket can lift suddenly, then accelerate slowly before hitting the fast regression mixture in thinner atmosphere.

Real top quality material, fascinating and some of the very best on utube. Wonderful learning opportunities...thanks!

Howdy Sir, this is my first time ever seeing your videos… in the first 6 minutes i was super impressed, subbed and looking forward to exploring your channel… you seem like a super knowledgeable guy. Thanks for documenting and sharing.

reminds of a cooking show when he brought out the cured stuff from under the table

So far, this is the most informative video I have found since making my own sugar motors. Very professional, not all hyped up. It's like watching my old physics instructor but this time I'm totally interested! :)

SO COOL THANKS! Now to see them in action!

Awesome Video your descriptions and explanations made it very easy to understand. I haven't made a sugar rocket in years but this makes me want to start all over again.

I just found your channel today and can I say, it's refreshing to see a person of science describing these techniques. I found dozens upon dozens of videos I will be watching and liking! Thank you for treating us as intellectual people but still teaching us in full. I feel like I'm back in university!

Thank you for sharing your knowledge with us all. I really appreciate the level of detail you put into explaining everything.

A very fine video. You are a great technical speaker. The pace was great. The presentation was clear. Well done!

i dont know what it is, but your energie just makes you watch every second without skipping or not paying attention. your the best science youtuber

It's always a great day when Tech Ingredients releases a video! My Curiosity runs wild about running thrust test on each of those engines on the Jet Engine thrust measuring device. Maybe even build a very large Engine and measuring the thrust. That would be an amazing video.

Absolutely love your vids. I will probably never build rocket engines but I sure enjoy watching the process . Very informative , well made super detailed video. Thank you for sharing your passion with the world . Very inspiring stuff !

Ive been brainstorming a rocket glider for months. I hadnt thought about using a slow burn motor before! Thanks!

Just wonderful. Put aside a moment the introductions to some of the aspects of engineering and science........the patience, planning, homework, attention to detail, subtlty. If these are all a student absorbs, they have learned some very essential traits I hope are learnable. I'm certain I'm overlooking some. Thank You! Keep up the excellent work.

Burn times! Standard: 27 seconds Iron Oxide: 21 seconds Slow burn: 2 minutes

"sir we found a man capable of getting us to space"..... tech ingredients with a straight face: "i need sugar, fertilizer, cardboard tubes and lube...."

Thanks for the video ! It brought back some good childhood memories of model rocketry ! Very interesting tutorial and meticulous craftmanship in how you make your motors ! :- D

First time on this channel, and I had to subscribe. This guy is a spectacular natural teacher.