Making a Rocket Nozzle - Simplex Ep 3
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- Опубліковано 10 тра 2023
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5:45 "machining outside is a beautiful peaceful experience" said no neighbor ever
😂😂
🤭🤭🤭🤭🤭
This dust is really, really dangerous. So i'm doing it outside so everyone can feel how dangerous it is.
I think between this and his parachute tests their used to it by now
@@O5MO It's just graphite, not dangerous to the environment but definitely dangerous to your lungs in large quantities.
This video is beautifully shot. Impressive work! Rockets are cool.
Thanks Destin!
No way smarter every day is here!!!!!!!!
@@BPSspace hey can you send me all the 3d models associated with simplex
script: "with a ton of clamping force" scene: 4 quickgrips trying their best.
I used to work for Rocketdyne in the 60’s where we made the attitude control thrusters 25, 75, and 100 pounders. We made them out Ablative material with a Graphit throat. In those days we used tracer lathes. Those were the days.
To be able to work at Rocketdyne in the 60s, literally putting men on the moon. Definitely seems like one of the most rewarding jobs in history!
How old are you mr.?
@@leonardoraz6375 at least 85 I guess
@@leonardoraz6375 84 I went to work at Rocketdyne in 1963
Legend! Thank you for your work, sir.
Bernoulli's genius can only be matched by Newton and his famous description of the 3rd Law of Motion:
"Alright, so check this out bro; It's like, for every action there's a freakin' equal and opposite reaction, dude! So, like, if you pushin' sumthin', it's gonna push back just as hard. For real, bruh...no cappin"
Isaac Newton, 1687
Add in Charles, Hook, Boyle… they were all contemporaries, regularly spoke to each other, and most of them were founders of the Royal Society. Oh, and with the exception of chemistry, invented all the science you learned up until university out of whole cloth in a single 30 year period. Scary smart dudes. At least as smart as Einstein’s clade.
13:25, I think, you need a hydraulic press in the shop 🙂
Harbour Freight sells: "12 ton H-Frame Floor Shop Press" for $170 (Instore Only, must be heavy to ship)
hydraulics can leak down over time, so you'll have to babysit it and monitor the pressure
My suggestion would be to just find an old arbor press that's large enough to fit most of this stuff, mount it on a heavy bench that will allow the passthrough to reach the ground, and then you can either put things that fit on the bench, or larger things under the bench for clamping. to clamp with an arbor press, you just hang a weight on the lever arm. it's a mechanical press that will get you enough push to get friction fit parts together without going overboard
Buy a larger lathe, your time is valuable, you won't regret the upgrade. A Shars style quick change tool post is well worth the additional cost.
Using machine tools outside must feel like one of those showers out in the middle of the desert. Total freedom.
Love this format, shorter but more videos. Keeping in the errors is really a great way to teach too. Keep up the excellent work.
As a machinist i appreciate your machine struggles. Good looking work, I've made worse looking nozzles with nicer machines!
Also as a machinist, all the things he claims are "stupid" are perfectly normal machining shenanigans. Figuring out how to hold weird shaped things that are just slightly too big for your equipment is what separates actual machinists from mere CNC-Go-Button-Pressers.
As the primary machinist on my school's robotics team, I can relate to lathe troubles. The lathes we use are literally WWII surplus (or came with the school when it was built in the 50s), with the original leather drive belts. This is compounded by the fact that all our drill bits are pretty dull, which makes for a wonderful combination
Joe, your work and videos are great! Keep it up and I can’t wait for the next one! When you had the lathe outside I imagined what was being said at neighbor’s house, “ I’m bored. I think I’ll look out the window and see what Joe is up to and what kind of costume he’s wearing today”.
I'm really just here to put on a show for my neighbors :)
Nicely done! While "ring of bolts" is popular among amateur motor makers, I always preferred internal snap rings. Might not work in your case, though. Also, I think I've mentioned before that using a *cheaper* graphite grade (the extruded stuff) will often result in a nozzle that is less prone to thermal shock on start-up. I learned this the hard way. Bought the highest-density iso-moulded graphite I could afford, turned some gorgeous nozzles. They all popped at start-up. Did the same profile in extruded grade, and that problem went away. The more you know...
What diameter nozzles?
@@chrisnorth3458 various. Including 75mm and 100mm
This is my new favorite series. Such great quality production and info from a passionate presenter. Thank you for your channe! I love it.
Great video. I worked in a graphite shop for 16 years turning graphite on both CNC and manual lathes. And NEVER once wore a respirator or even a dust mask. I'm 62 now with no respiratory problems at all and all the dozen or so guys I worked with have had no problems. Not saying it was smart (definitely not smart) an ounce of prevention worth a pound of cure. I so enjoyed the video this is great tv please keep it up.
Awesome, thank you for all the work you put into this series
Indeed, thank you!
im not asking to turn this channel into a machining channel, but can you show more machining? its very entertaining to see you machine parts outside in the nice weather. awesome video.
Check out the sharper carbide inserts for non-Ferrous metals. They come very sharp with high rake angles and will take that material off effortlessly.
"The worst of both worlds, a hybrid."
Those of use who work with hybrids like to think we enjoy the challenge. :)
Excellent video. I will definitely be making this part of our high school rocket engineering curriculum. FYI we build hybrids. Thank you for your content and your passion.
Love your content man. Just a machinist here giving you a potential tip. If you need to turn something bigger on your lathe you can try using a boring bar upside down and running the machine in reverse. I had to do it a few times at work because it was at the machine's capacity lol. We actually had to modify the guards on the lathe to fit the part in.
Pro tip from a tool room worker when turning larger stock than your lathe can handle. Use a boring bar from the back side of the part turning backwards. Also makes chamfers and tapers on external flanges easier.
0:48 "A rocket motor that is solid, liquid, or-the worst of both worlds-hybrid..."
Wow that's so offensive to hybrid motors (I 100% agree with this statement)
I love the characteristics of your method of picking nozzle geometry! :D
I used to do hobby rockets when I was a kid... like 6-7 years old. Your channel makes me regret not sticking with it.
Little tip for the cross slide on the lathe, you can 3d print a drill attachment and get a smooth surface finish with minimal sanding. Try it out next time!
Graphite isn’t abrasive; it’s actually used as a lubricant in numerous mechanical appliances. When I worked for a company that specialized in injection molding tools, I would just smother the graphite on the guiding pins of the machines. I have to tell you, it works like a charm, often better than grease even. There are also spring-loaded brass bolts that have graphite pressed into them. When there’s mechanical stress, the housing is abraded and releases the graphite for lubrication.
But you're right, it's really messy and can pose a threat to certain types of electronics. And it's impossible to get your shop clean afterwards :D
This guy feels like the next amateur spacex
"amateur" is honestly an insult to the type of batshit crazy stuff Joseph Bizzlington is doing here.
@@mirandahw well, he is a amateur, he has a degree in music not in aerospace. Being a amateur does not mean you can not do awesome things
@@ekkekrosing8454 Technically, he makes money doing it through the channel. So, you could consider him a professional... But that's just semantics.
You can’t say he doesn’t look a little bit like Elon musk too…
Who do you think was the first Amateur SpaceX. :D
"A rocket motor, whether it's liquid, solid, or - the worst of both worlds - hybrid [...]"
Solid opener! :D
These episodes are so well done, thank you Joe
Having followed along for a long while I find that what I enjoy most about these latest videos on the process you are developing.... Is You having a blast in the videos! 😊
It's great to see that side of development too since so much of your other videos have me biting my nails and sitting on the edge of my seat. Thank you for doing this. It's great to see your constant progression and that you remember to have some fun too 🎉
If you use an 85 degree chamfer the inner edge of the rocket casing, it might be easier to insert the o-rings and nozzle carrier without nicking the o-rings. In addition, I couldn’t tell if you were using lube. Parker makes a silicon lube I have had good results with. Glycerin is another good possibility as long as your materials are compatible.
If you’re going to keep making more of these you can get a concrete boring drill which is a hole saw that is deep enough to cut 6” deep or more.
You can also use isopropyl alcohol to lubricate the o-rings and leave no residue. It doesn’t damage viton or most other common materials.
4:43 There is a whole episode on how to deal with procrastination hidden in that little bit and I'd love to watch it.
I get using equipment outside. Pro tip: high velocity fan. Scorching summer heat = not a problem when there's a constant 15mph breeze blowing across you. Bugs can't fight it, heat no longer matters, plenty of light for whatever you're working on. Unbeatable.
"that's my nozzle. And it's a pretty good fit"
my new pickup line
G'day Joe.
For fitting your nozzle carrier with O rings installed into a liner.
You might consider using a tool called a 'ring compressor'.
Although the device is primarily intended for inserting piston and ring assemblies into the cylinders/liners of big diesel engines it might meet your needs too.
Great video series, it takes me back to the 1960s when a kid couldn't buy an Estes rocket engine in california... without an adult, a stack of paper work and a sign off by the local fire department chief. Firing them was a whole 'nuther layer of misery...
Yes we made our own; yes I do have all my digits.
Fascinating journey so far, I'm so glad you're making these videos. Thank you!
I appreciate the details and and the great explanations!
1:07 shock diamonds! ! Awesome
Dude forgot to stop... You have to admire the passion in the man. Please don't change.
If this were an 80's concert in a backroom of a crappy oyster bar, I would be the older guy with a mullet screaming "More, we want MORE!!!" TLDR I like these videos. 😃
Suggest getting an arbor press. Small 1/2 ton, and a larger 3-5 ton. Probably the most usefull tool in the shop. Saves dancing on top of critical one-off parts.
Been watching for years. Amazing to see how far you've come and how driven you've remained through the failures and successes. Also, very impressive how far you've come in engineering especially since I believe you got your degree in music, right? Anyways, I know you'll go on to accomplish great things. Keep the vids coming!!
"Graphite dust is highly abrasive." Isn't graphite used as a dry lubricant?
Good question! Graphite is used as lubricant.
I think he heard something about carbide dust and got it mixed up.
@vpupkin97 wrote a comment describing how graphite paste can be used to facilitate grinding two hardened metal parts against each other for a near perfect fit.
When graphite is clean and dry, it acts as a lubricant. Mix in some oil, and it becomes a carrier for abrasives.
Much love, thanks for the hard work anf knowledge.
I love this simplex series
Machiniste trick, if you want to archive high tolerance, leave a little bit of material ( 0.001" or 0.002" ) and do the rest with sand paper ( turn your piece with the lathe and apply pressure with the sand paper), start with 80 grit and move to 120 grit. That way you can archive a good tolerance.
Check out old South Bend lathes! They are phenomenal
I have a 1926 South Bend model C 9” lathe I restored and it’s still cutting great to this day!
Loving this series. Just enough information that it explains it without getting too bogged down in the lingo/details
just as a recommendation for rocket flights, you should put the flight duration/motor burn time up the top. Your channel is the best!
"thank the sponsor of this video, which is brilliant" made me smile a bit.
Its both crazy and amazing how much work goes into making a rocket motor
Hey I’m a machinst when you’re boring you can rough out with big cuts .03” depending on chatter from your boring bar but once you get down to final cuts slow is smooth .001-.004” but this is assuming your lathe has enough rigidity to stay accurate. Also a machinist handbook will tell you your slip and press fit sizes (among every other thing on earth) which can help avoid tolerance issues as you know exactly what you need. A tight concentric bore gives you more accuracy this inherent efficiency
Finally! Been waiting for the motors part for years, great work!
This is intense! Serious work.
For getting smoother tapers with the compound, of you put both small handles back on rhe wheel (looks like they were removed), you can chuck the base of a T-shaped piece of metal into a drill, and use that to turn the handles. As long as you have the drill in low gear and keep thr speed fairly consistent, it should work better and give a more consistent surface finish than turning the knob by hand.
Absolutely loving this series, can't wait for Ep 4.
Thank you Joe! Your vids are awesome!
Good to see you both back.
I too play with all different kinds of electronics. At the moment the TomTom 550 is on but just got a mount to fit the bmw navigator fitting.
The ammount of calculation you have done through this channel is insane. rockets are super cool!
6:15 Pro tip for getting smooth results from your cross slide, knock up a tool that let's you drive it with a cordless drill.
They make cnc China mini lathe replamcnet motors with ball threads too for under 40 bucks 10 years ago last time I could afford mini lathes. Buy alot of it is rigidity m that said if the lathe is anythkjt at all should hlbe able to adjust/replace the ways bearing pads. The factory ones are horrible hell again ack 2hen I coild sfford it my mini mill the collet tool holder was 8mm out of round from enter had a rig fab shop lathe it straight for me so I could make swarf ASAP 🤣
Looks like the way adjustment screwed are way too tigjt they take very precise and tedious fiddling to get just right but should end up butter smooth and be able to be turned with just 2 fingers and no backlash
On turning those tapers: Don't you watch This Old Tony? Power-drill cross-slide attachment!
For those slow increments on the lathe, This Old Tony has the solution.
Use two small T-welded iron bars and a screwdriver with speed control.
really cool series
Awesome stuff. Good job!!!
LOVE YOUR WORK !!!!!!!!!!!!!!!!!!!!!!!!! keep going !
Excellent video
Another excellent video. It's great to see the process. Can't wait to see Simplex soar. Keep up the great work. Ad Astra! :)
Man this so advanced. Thank you for sharing!
Love this series it’s epic ❤❤
I'm learning every time I watch your vids!
Thank you for sharing, your video is very good and amazing
Awesome, and hilarious. Nice job and thanks for the video!
It's amazing that you do all this.
Great work. Currently learning in Collage how to design a rocket nozzle. Nice to see this in a real world example ;)
Oh boy! You are making history here! As usual your videos are very detailed and at same time direct to the point! Please keep doing this amazing work! You "rocket"!!!
Very impressive. And filming it while working on it makes the task about 10X harder.
That is a very hot nozzle you have there.
I love your work so much, keep it up.
Your nozzle angles are within reason. One thing to consider is a smaller divergent angle reduces cosine losses, aka some of the thrust being wasted going somewhat sideways out of the nozzle and not pushing the rocket up. By lower I mean something like 10 degrees vs your 15. Although a lower angle means a longer nozzle, and thus more weight, so it’s a trade off.
Amazing stuff, as always!
Another great episode Joe 👍 I wish you many more days happily turning materials into designed items outside. You’ll need a hat added to your PPE though come Summer 😊👍
Mad man love it.
joey b i need part 4 like right away i am enjoying these so much
Maybe next time, try one of those industrial vibrators, that they use for concrete?
Love this series!
3:35 I am sure the neighbors agree with you 😂
I love the name Simplex. it's a simple name, but the deeper meaning is still complex.
Thanks Joe. You're sort of single handedly making rocketry cool again.
New video and New Amazing Video from Jr. Musk👏👏
The parts turned out great considering the machining troubles. Looking forward to the next part :)
Have you tried wet pouring your mix into the casing, tooling installed, pull the vacuum on the pre-cast material that’s already in the case. Maintain the vacuum through the cure and then remove the tooling. No voids, perfect cast, tooling form is removed and you have a near perfect motor casting ready to shit and git.
I love your little eBay lathe! That weather looks gorgeous too. Good excuse to be outside in the sun.
A small press would help with your nozzle assembly (no dancing required)...a taller press would help installing the o-ring parts. I never thought about all the uses of a press until I spent time with a friend of mine with a really nice shop--he constantly uses his...basically a frame with cross tables and a bottle jack.
Can definitely tell machine work is not your background but love watching it
Regarding the phenolic, why not build a jig with a bandsaw to get it round first? You're going to bore the center out of it anyway. You could drill a 5mm hole in the middle of one face, and pivot it around that on the saw. then turn it as normal on the lathe? This is how Frank Howarth does big bowl blanks in his woodshop.
Great content!
Great work on the machining Joe!
Thanks Brice!
Very interesting, but my inner space-nerd-fan-boy really wanted to see it go bang!
"the worst of both worlds, hybrid" it got me rolling on the floor