The compressor looks very impressive!!? Appreciate the level explanation you give!!!! It must have been an incredible amount of effort to design 3d print it.
What kind of filament did you use for this build? This is so inspiring! I think I will try to recreate this with my son! Thanks for making me a better Dad.
BRO!!! I was literally going to comment on the last vid, last week, that PCBWay hopefully picked you up for sponsorship so you could do a metal 3D printer turbine!
I believe you. I think it would help drive the point home if your new compressor was a similar volume to the old one. Right now it seems like an easy argument would be that of course the bigger one creates more vroom.
TURBOJET Lets fricking goo; I've been building one for 2years now I'm on V2. If you wanna save some time and money swap out those steel bearings for cageless silicon Nitride bearings, or cageless zriconium oxide bearings. These bearings Run dry and dont need lubrication. For you combustion chamber I'd recommend a reverse flow combustion setup, basically the fuel is injected from the top down, and protected with a tube to ensure it doesn't ignite too early. If you use a (stainless-steel Turbine, and turbine housing) make sure to take into account the thermal expansion ratio of the turbine with respect to the turbine housing. I'd recommend some air-cooling fins for the turbine housing to keep the temperature predicable. I Noticed you are using a non-threaded shaft, I'd recommend using a partially threaded shaft as it makes securing the turbine and compressor quite easy, And No the nuts won't come loose.
This video remind me why i subscribed, can't wait to see the turbojet video. (Meanwhile in a distant future: guys next video about scramjet and i'll fly on this one)
I'm glad!! It's really rewarding to be able to share this progress with you guys, it makes the whole journey a lot more fun. The I can't way to fire up the turbojet!
Awesome work! Are you publishing the 3d files for the compressor? I made one before but it wasn't working too well, so I am interesting in printing this one
I will say, speeding the same amount of air up, and then slowing it down will not increase its pressure, given the same end volume. A compressor of any kind works by trying to force more air into a space than can fill that space at ambient pressure. I do agree with your explanation of a trick to make centrifugal compressors more efficient.
I know where you're coming from because I had the same intuition at first too, but you're not considering conservation of energy. By speeding something up you are adding energy, if it then slows down, the energy has to be conserved, so it converts partially to pressure and heat to keep the system balanced. That is fundamentally how centrifugal and axial compressors work
@@Neally I do agree to an extent, but pressure without mass is not very useful for internal combination engines, both piston and jet. The real benefit of increasing the pressure is increasing the mass of air in a given space. This means more fuel can be burned. I work on jet engines, and axial flow engines step frontal area of the compressor blades down over each compressor stage. The front is wide open, and that same amount of air is forced to occupy a smaller and smaller space, increasing pressure.
thats beautiful, how do you make the impeller so perfectly? when i try to 3d print one, it get out warped (a little bit its enough to break the entire thing) or not strong enough
Hard to say! It depends on how you're running your printer, make sure you're using well dried filament, not printing too fast, and have your slicer settings sorted out
would you mind sharing the step files? long story short I'm working on a ProCharger alternative that is cheap and reliable and your compressor seems very capable and would be an awesome output
Love to see that thrust! Also I love the new Raw/Avg/Max output measures! Would be even cooler if there were charts and graphs to go along with it. Just sayin, we should set up some data visualisation for the project. Edit: formatting
The to pology of the volute and the channels is for the sake of, drag and air resistance reduction and NOT for compression ratio. The divergence of those nozzles does nothing to increase compression. It will indirectly add to higher compressio, because It's an efficiency thing. It decreases that resistance I talked about. Pressure ratio/compression ratio is a function of the geometry of your rotor and it's rpm. You got it right that the nozzles/channels are there to slow down the air and make it compressed and hot istead of fast and low pressure. Top tips to increase the pressure: - increase speed/rpm -increase rotor diameter -optimize rotor shape -decrease leaks, losses and tolerances
Bit of a random thought, at my work we use danfoss nozzles to inject fuel into the burner of our hot water pressure washers. Maybe these will benefit in your design? I’m not sure how well they’ll work with propane as our machines use diesel but it may be worth looking into as you can get ones with different spray patterns etc
Very Impressive! Does none of the heat transfer to the plastic compressor housing? Did you somehow insulate it? Also, I'm curious how much % infill did you use in the compressor wheel?
I want to ask a question: can you improve the aspiration by using a small and a big turbine in a sequential config. One for low rpm and the other for the rest?
What design did you see that uses those stationary stators on the volute housing? Reason I ask is if you look at any aftermarket supercharger or even turbo charger. Those stators do not exist. If what your saying is true, there would be a lot of performance to be had including them. This makes me think they were left out for a reason and are likely just a restriction that doesn't help performance. Have you though about possibly creating a case without them and comparing? Would be interesting to see the results anyway!
The two types you're talking about are called vaneless and vaned diffusers, they differ in flow and pressure characteristics, you're best off doing some digging yourself because it gets a bit complicated and I'm by no means an expert! I really like the idea of comparing the two, I've been playing with the idea of trying to make my own turbocharger, I think I could definitely experiment around with that!
It took up my entire 256x256mm print bed. And not in it's current state, it peaks around 0.85psi. With a stronger motor you can probably push it to somewhere between 1 and 1.5psi, but that's just my guess
I'm sure it would! I don't currently have a resin printer, but I have thought about painting the surfaces with the resin and using a uv light to cure it to smooth out any imperfections
take a look a Kurt Schrecklings book about turbine engines. His first engine was the FD3/64. a lot of information to be able to build a proper jet engine. if you need a copy of the PDF i can send it via email if you wish
Neat project, but after looking back to the video 6 months ago you mentioned 400-ish grams of thrust - about a pound. I assume from the jet combustion output. Given the power needed for the electric compressor, I'd mention a cheap 90mm EDF (~2100 Watt, 30000 + RPM) produces over 6 pounds, 3kg-ish with plain old cold air. An expensive aluminum 90mm EDF (over 70000 RPM) can make >13 pounds. Tech Ingredients attached 2 of the aluminum ones to a bicycle a few years ago. I mean, fire rules, but shouldn't 30-50 pounds be the target thrust? I've also been following some rocketry projects that talked about nozzle geometries - notably, where is your expansion taking place? The bell nozzle use on rockets lets the hot gasses expand and cool which converts to thrust the rocket can use - the nozzle is key to putting the expansion to use rather than wasting it. Then again, I've never seen a turbo jet with a bell nozzle so I must conclude the expansion is taking place inside somewhere. I probably need to watch more of your vids to make sure I'm not being Captain Obvious :)
I think using my own designs for combustion chambers, compressors, nozzles, and actually making everything myself is robbing the engine of a lot of efficiency. Additionally, the motors seem really weak for the application. Ducted fans use brushless motors, and from what I've seen they can spin up quite a bit faster than mine. I've ordered one, maybe it'll make a difference on a future design. I'll keep the nozzle shape in mind too!
Yeah it's accurate, the new compressor design is putting way more load on the motors because it's better at creating pressure, so the motors can only spin it up that fast
Propane lowkey an L fuel because at low temperatures the fuel cools down a substantial amount. This screws up its combustion. It’s best to have the fuel heated or cracked already
Yeah, I agree with you. I've been working on a kerosene injection system, but it still needs some work and I haven't been able to test it yet.. It'll be powering the new engine eventually!
@@Neally Awesome!, im particularly interested in that impeller stl since designing a sturdy impeller that can both print well and not tear itself apart is a challenge and i would be able to use this in many different things
@@Neally Sorry for asking so many questions, but one other thing i wish to know is are there any calculations relevant to modelling compressor and turbine for small scale and also with things like a stator etc, or are the all just something that you can wing? I assume that for the compressor and turbine you wouldnt want higher drag on the turbine than the compressor and vice versa to keep things turning smoothly
Not well, the geometry isn't suitable for the reverse flow, you'd want a different impeller(turbine, in that case) shape, and probably to remove the diffuser
@@crackedemerald4930yes, i tried making similar electric jet afterburner engines and was testing 3d printed impellers when one blew up in my face and I almost lost an eye, so when working with really high speeds and 3d printed parts its a must.
Wait a minute, at least to my knowledge I don't think your concept of the diffuser is quite physical. Air can not flow uphill. As the diffuser is not doing any work itself, it should be impossible for air to increase inpressure as it travels through the diffuser. That is not to say it might not have other benefits, but unless I'm missing something I don't think it can increase pressure.
The diffuser passively increases pressure by reducing velocity. Think of it like a backwards venturi, where the expanding shape of the channel would cause an increase in pressure and a decrease in velocity. And the air isn't really flowing, it's essentially being shot into the diffuser by the impeller, that's where the extra energy comes from
@5:56 im guessing you are using propane. If you watch you are getting propane fireballs coming back to you . Hope you have a arrester or something on there. Ok now you show your propane yeah so be safe
The stuff you see in the line is just liquid propane, there isn't enough pressure in the system to push oxygen into the line, there can't really be a flashback
@@Neally oh ok so its not like the little plasma balls like people make propane shooters with? Just looked like it was those didn't want to see something happen but if you say its good then I guess its good. Wasnt trying to be that guy stay safe loving the idea im working on a similar project myself.
1:26 your not slowing down air to make high pressure, your literally squashing air, into a tighter smaller space. If you was right than air would be at it's highest pressure when not moving. You've got the right idea but your explaining it wrong.
I mean the how's and why's are answered in the first few minutes of the video.. I trust that you're clever enough to put together the pieces to actually design it
Dude it moved by itself!! That's so freaking cool!!
bro u making integza jealous.
Haha I wish!
I soon will🤪 have been working on a engine with a friend for a while now!
Haha I thought of him, too, but more like they both should collaborate!
That was the best explanation of what low and high pressure air means I've ever seen. Great job!
Thank you! I appreciate it!
THIS EXACTLY
i never understood how stator and compressor worked outside of
"lot air
small space
fan fast
wrrrrrrr"
Holy shit! the progression in these videos is insane
We've definitely come a long way!
im HYPED for the next turbojet engine build
Me too, it's been in the works for so long I can't wait to get it fired up!
The compressor looks very impressive!!? Appreciate the level explanation you give!!!! It must have been an incredible amount of effort to design 3d print it.
It's been a lot of work, but it's definitely worth it!
Im 5 seconds into the video and already in love!
Thanks! Glad you like it!
HE'S BACKKKK!!!
Back and better than ever, thanks buddy!
underrated channel
Thanks I appreciate it!!
Awesome, can’t wait for that turbo jet
You and me both!
What kind of filament did you use for this build?
This is so inspiring! I think I will try to recreate this with my son!
Thanks for making me a better Dad.
Bambu lab HF petg!
I'm glad you feel so inspired ;)
great vid, keep up the good work your videos are really entertaining. I hope your channel pops off :)
Watching from South Africa
Wait im from SA too
Cheers! Thank you, friend! I appreciate it :)
congratulations the amount of work in here takes dedication keep it up
Thank you very much!
Yes, finally a new video has arrived after many years
❤
It's good to be back!
Finally, he’s back
BRO!!! I was literally going to comment on the last vid, last week, that PCBWay hopefully picked you up for sponsorship so you could do a metal 3D printer turbine!
It's good to be back, it's been too long ;)
i will say this every time
i love you and your content hope you channel grows and you get the fame you deserve
Comments like these really make the whole UA-cam thing worth it for me.. Thank you so much, my journey wouldn't be the same without you
Congratulations on 10K subscribers!!!
Thank you! We've come so far!
I have just stepped in your path and I am happy to learn from you❤️🙏
Please upload more
Man I'd love to
YT Algorithm on a roll with recommendations lately. Subbed!
Cheers! Thanks :)
Try making your vanes a tangent arc from the compressor wheel tip
I'll give that a shot sometime
I believe you. I think it would help drive the point home if your new compressor was a similar volume to the old one. Right now it seems like an easy argument would be that of course the bigger one creates more vroom.
Yeah true, maybe a good idea for another video!
Great video
Thanks!
TURBOJET Lets fricking goo; I've been building one for 2years now I'm on V2. If you wanna save some time and money swap out those steel bearings for cageless silicon Nitride bearings, or cageless zriconium oxide bearings. These bearings Run dry and dont need lubrication.
For you combustion chamber I'd recommend a reverse flow combustion setup, basically the fuel is injected from the top down, and protected with a tube to ensure it doesn't ignite too early.
If you use a (stainless-steel Turbine, and turbine housing) make sure to take into account the thermal expansion ratio of the turbine with respect to the turbine housing. I'd recommend some air-cooling fins for the turbine housing to keep the temperature predicable.
I Noticed you are using a non-threaded shaft, I'd recommend using a partially threaded shaft as it makes securing the turbine and compressor quite easy, And No the nuts won't come loose.
Wow thanks for the info!! I'll see about getting some of those bearings because that sounds really handy!
Du bist so gut ! Sehr schönes video !❤👍
This video remind me why i subscribed, can't wait to see the turbojet video.
(Meanwhile in a distant future: guys next video about scramjet and i'll fly on this one)
I'm glad!! It's really rewarding to be able to share this progress with you guys, it makes the whole journey a lot more fun. The I can't way to fire up the turbojet!
Amazing design!
Thank you!
this looks incredibly cool
Thanks! It's even cooler in person! You can feel the exhaust pressure in your chest the same way you can feel thunder
@@Neally woah
Awesome work! Are you publishing the 3d files for the compressor? I made one before but it wasn't working too well, so I am interesting in printing this one
Yeah I think I will soon!
Thanks for sharing! This is really COOL!😝
Glad you like it! Cheers! ;)
Can you show how you balance the impeller?
Yeah I can! I'll have to do that for the new engine
Oh wow!! Great video 😍
amazing explanation!
Thanks! Glad you liked it
I will say, speeding the same amount of air up, and then slowing it down will not increase its pressure, given the same end volume. A compressor of any kind works by trying to force more air into a space than can fill that space at ambient pressure. I do agree with your explanation of a trick to make centrifugal compressors more efficient.
I know where you're coming from because I had the same intuition at first too, but you're not considering conservation of energy. By speeding something up you are adding energy, if it then slows down, the energy has to be conserved, so it converts partially to pressure and heat to keep the system balanced. That is fundamentally how centrifugal and axial compressors work
@@Neally I do agree to an extent, but pressure without mass is not very useful for internal combination engines, both piston and jet. The real benefit of increasing the pressure is increasing the mass of air in a given space. This means more fuel can be burned. I work on jet engines, and axial flow engines step frontal area of the compressor blades down over each compressor stage. The front is wide open, and that same amount of air is forced to occupy a smaller and smaller space, increasing pressure.
thats beautiful, how do you make the impeller so perfectly? when i try to 3d print one, it get out warped (a little bit its enough to break the entire thing) or not strong enough
Hard to say! It depends on how you're running your printer, make sure you're using well dried filament, not printing too fast, and have your slicer settings sorted out
BEEN WATING AGES FOR THE NEXT PART YEAAAAAAAAAA
Hell yeah! Just wait for the next one, it's gonna be great ;)
@@Neally Ive got access to CFD Simulation software, maybe it could help you with design?
Cant wait for the next video
Cheers! Thank you✌️
inspiring stuff, thanks!
Thank you my friend!
would you mind sharing the step files? long story short I'm working on a ProCharger alternative that is cheap and reliable and your compressor seems very capable and would be an awesome output
I'll get something out to you guys soon!
AWESOME. THIS IS AWESOME!!!
Cheers, buddy! Thank you!
Love to see that thrust! Also I love the new Raw/Avg/Max output measures!
Would be even cooler if there were charts and graphs to go along with it.
Just sayin, we should set up some data visualisation for the project.
Edit: formatting
Hell yeah, brother. I think that'll all be stuff I do with the new engine, I have a bunch more sensors I want to add and it'll be a lot to track
Amazing job! However the implications Bernoulli principle @1:13 is not what airfoils make an airplane fly.
Yeah I've gotten a few comments about that! But thank you, I appreciate it!
Awesome design, are the compressor model files available for download anywhere?
The to pology of the volute and the channels is for the sake of, drag and air resistance reduction and NOT for compression ratio. The divergence of those nozzles does nothing to increase compression. It will indirectly add to higher compressio, because It's an efficiency thing. It decreases that resistance I talked about. Pressure ratio/compression ratio is a function of the geometry of your rotor and it's rpm. You got it right that the nozzles/channels are there to slow down the air and make it compressed and hot istead of fast and low pressure.
Top tips to increase the pressure:
- increase speed/rpm
-increase rotor diameter
-optimize rotor shape
-decrease leaks, losses and tolerances
This is so lit 3d printing education
Thanks, I appreciate it!
Great video man! Do you have any specific plans for the engine or just building it because it's awesome?
I have my cad designs, but aside from that, no plans!
Good stuff!!!!
Thanks!
Bit of a random thought, at my work we use danfoss nozzles to inject fuel into the burner of our hot water pressure washers. Maybe these will benefit in your design? I’m not sure how well they’ll work with propane as our machines use diesel but it may be worth looking into as you can get ones with different spray patterns etc
Hell yeah I'll look into it!! Diesel and kerosene are close enough, I think that could work nicely
@@Neally good luck dude! Hope it works out 😎
Very Impressive! Does none of the heat transfer to the plastic compressor housing? Did you somehow insulate it? Also, I'm curious how much % infill did you use in the compressor wheel?
I'm sure it does, but at the moment the compression ratio is so low that heat isn't a significant factor. I used a 25% infill, thanks!
So you give up on electric compressor and moving to classic turbo jet design?
I might revisit the motor jet in the future, but for now I'm moving on to the next design. We need more power and the turbo makes that possible
Word of the day: Stoichiometry.
You gotta get that fuel to air ratio right dude. Propane pressure/flow to compressor pressure/flow ratio
i ❤️ jet engines
Me too. All the way.
I want to ask a question: can you improve the aspiration by using a small and a big turbine in a sequential config. One for low rpm and the other for the rest?
Multi stage sequential compressors would definitely help get the pressure up! Definitely more bang for the engine I think
What design did you see that uses those stationary stators on the volute housing? Reason I ask is if you look at any aftermarket supercharger or even turbo charger. Those stators do not exist. If what your saying is true, there would be a lot of performance to be had including them. This makes me think they were left out for a reason and are likely just a restriction that doesn't help performance. Have you though about possibly creating a case without them and comparing? Would be interesting to see the results anyway!
The two types you're talking about are called vaneless and vaned diffusers, they differ in flow and pressure characteristics, you're best off doing some digging yourself because it gets a bit complicated and I'm by no means an expert! I really like the idea of comparing the two, I've been playing with the idea of trying to make my own turbocharger, I think I could definitely experiment around with that!
Gas pressure now the limiting factor?
Yeah it is, the motors are once again too weak to produce more power
when duo you working for space x?
That would be something haha
Where did you or where will you post the files?
I'll be posting them on my patreon soon!
How big of a bed do you need to print? How much psi does this make? you think it would be enough to make 5psi on a v6 engine?
It took up my entire 256x256mm print bed. And not in it's current state, it peaks around 0.85psi. With a stronger motor you can probably push it to somewhere between 1 and 1.5psi, but that's just my guess
Hi, is this compressor going to be available for purchase like the v1? I could really use it! Thanks and have a great day
Yeah sure, I'll put it on my patreon soon!
Any ways we can follow your build with some cad models or STL files?
Would printing the blower it out of resin make the air flow better since FDM printing has a bunch of print artifacts and imperfections
I'm sure it would! I don't currently have a resin printer, but I have thought about painting the surfaces with the resin and using a uv light to cure it to smooth out any imperfections
@@Neally what about sanding it?
Yeah! I sand the volute casing so the layer lines are less pronounced
take a look a Kurt Schrecklings book about turbine engines. His first engine was the FD3/64. a lot of information to be able to build a proper jet engine. if you need a copy of the PDF i can send it via email if you wish
Yes please! I'd love to read through that! Best way to reach me is Neally.contact@gmail.com. Thank you!
When are the files getting posted?
I just got home from a work trip so I'll see if I can get them up this weekend!
@@Neally Thanks!
Nice!!
Thank you! Cheers!
Neat project, but after looking back to the video 6 months ago you mentioned 400-ish grams of thrust - about a pound. I assume from the jet combustion output. Given the power needed for the electric compressor, I'd mention a cheap 90mm EDF (~2100 Watt, 30000 + RPM) produces over 6 pounds, 3kg-ish with plain old cold air. An expensive aluminum 90mm EDF (over 70000 RPM) can make >13 pounds. Tech Ingredients attached 2 of the aluminum ones to a bicycle a few years ago. I mean, fire rules, but shouldn't 30-50 pounds be the target thrust? I've also been following some rocketry projects that talked about nozzle geometries - notably, where is your expansion taking place? The bell nozzle use on rockets lets the hot gasses expand and cool which converts to thrust the rocket can use - the nozzle is key to putting the expansion to use rather than wasting it. Then again, I've never seen a turbo jet with a bell nozzle so I must conclude the expansion is taking place inside somewhere. I probably need to watch more of your vids to make sure I'm not being Captain Obvious :)
I think using my own designs for combustion chambers, compressors, nozzles, and actually making everything myself is robbing the engine of a lot of efficiency. Additionally, the motors seem really weak for the application. Ducted fans use brushless motors, and from what I've seen they can spin up quite a bit faster than mine. I've ordered one, maybe it'll make a difference on a future design. I'll keep the nozzle shape in mind too!
Is the rpm count accurate..?seems very low at 17k
Yeah it's accurate, the new compressor design is putting way more load on the motors because it's better at creating pressure, so the motors can only spin it up that fast
I can’t find the files on your patreon please post soon 🙏
Propane lowkey an L fuel because at low temperatures the fuel cools down a substantial amount. This screws up its combustion. It’s best to have the fuel heated or cracked already
Yeah, I agree with you. I've been working on a kerosene injection system, but it still needs some work and I haven't been able to test it yet.. It'll be powering the new engine eventually!
Just to ask, but are the stl files for all these models available anywhere?
I'll probably have the files on my patreon soon!
@@Neally Awesome!, im particularly interested in that impeller stl since designing a sturdy impeller that can both print well and not tear itself apart is a challenge and i would be able to use this in many different things
@@Neally Sorry for asking so many questions, but one other thing i wish to know is are there any calculations relevant to modelling compressor and turbine for small scale and also with things like a stator etc, or are the all just something that you can wing? I assume that for the compressor and turbine you wouldnt want higher drag on the turbine than the compressor and vice versa to keep things turning smoothly
pensaba que pcb way solo era para circuitos e impresion 3d :0
Is this reversible? Can it be used as a turbine?
Not well, the geometry isn't suitable for the reverse flow, you'd want a different impeller(turbine, in that case) shape, and probably to remove the diffuser
cover your skin while welding my guy, you'll get melanoma
Good call!
@@Neally also have good hearing protection and a blast shield, a big piece of plexiglass or policarbonate would do.
@@crackedemerald4930yes, i tried making similar electric jet afterburner engines and was testing 3d printed impellers when one blew up in my face and I almost lost an eye, so when working with really high speeds and 3d printed parts its a must.
How much would it cost to make me one of these?
can it play doom tho
Couple more videos and it probably will😂
how do you earn money to do this cool projects
I didn't make any money for years, but now UA-cam ads, and sponsored videos bring in a little bit
Where is the stl?
I haven't posted it yet
@@Neally lmk when it’s up, I have a 60k brushless motor and I would love to share the results with u
@@Neally is the compressor going to be up on your patreon?
put propane tanks in boiling water for extra pressure
you need more subs lmao
We'll get there!
Are you still gonna reply to all the comments when this channel inevitably takes off?
I'll do my best!
@integza , you gotta see this man
Share the files 😎
Soon!
Technically speaking its a 3D printed motorjet.
Yeah that's exactly it, a 3d printed electronic motorjet
Wait a minute, at least to my knowledge I don't think your concept of the diffuser is quite physical.
Air can not flow uphill. As the diffuser is not doing any work itself, it should be impossible for air to increase inpressure as it travels through the diffuser. That is not to say it might not have other benefits, but unless I'm missing something I don't think it can increase pressure.
The diffuser passively increases pressure by reducing velocity. Think of it like a backwards venturi, where the expanding shape of the channel would cause an increase in pressure and a decrease in velocity. And the air isn't really flowing, it's essentially being shot into the diffuser by the impeller, that's where the extra energy comes from
How you described lift is called the Equal Transit theory and its kinda not true. Bernoullis principle governs flows and therefore lift
Good point! It seems to be partially accurate but not fully responsible for lift, could you point me to a better explanation??
that's nuts, slap it on something
I think I'm gonna try something in that direction!
@5:56 im guessing you are using propane. If you watch you are getting propane fireballs coming back to you . Hope you have a arrester or something on there. Ok now you show your propane yeah so be safe
The stuff you see in the line is just liquid propane, there isn't enough pressure in the system to push oxygen into the line, there can't really be a flashback
@@Neally oh ok so its not like the little plasma balls like people make propane shooters with? Just looked like it was those didn't want to see something happen but if you say its good then I guess its good. Wasnt trying to be that guy stay safe loving the idea im working on a similar project myself.
No no, nothing like that, just the liquid propane haha. Thanks though, it is better to be on the safe side
1:26 your not slowing down air to make high pressure, your literally squashing air, into a tighter smaller space.
If you was right than air would be at it's highest pressure when not moving.
You've got the right idea but your explaining it wrong.
How is this better than just using a cheap automotive turbocharger and flame tube???
I feel like there's a lot of reasons.. But the main one is that I did it because I can lol
Just a gentle reminder not to export your ITAR/EAR controlled designs to overseas vendors like PCBWay!
Excellent point!
wwww
this is just a "watch me build and test" rather than "how to design"
I mean the how's and why's are answered in the first few minutes of the video.. I trust that you're clever enough to put together the pieces to actually design it
Expansion doesn't increase pressure... You're talking nonsense in the beginning.