I 3D Printed an Air-Powered Engine with Honda's VTEC
ฝัง
- เผยแพร่เมื่อ 8 มิ.ย. 2023
- Today, I demonstrate my VTEC engine that runs on air. This engine uses Honda's VTEC system to operate well in higher rpms. I show how VTEC works on this 3D printed engine in this video and demonstrate its benefits.
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Footage used (In no particular order):
• b18c vtec sound
• Honda Civic Jump - Fly...
• Honda civic K20 Turbo ...
• Video
• K24 Honda Ballade Vtec...
• Kid Crashes Civic Tryi...
• Loud VTEC Sound Test
• Sickest B18c Civic Bur...
• Sickest VTEC Sound Eve... - วิทยาศาสตร์และเทคโนโลยี
Please do a multicylinder version of this with v-tec! That would absolutely awesome, love your ideas man!
Thank you! Once I refine this one, I will be aiming for two or maybe even three cylinders!
I always wondered what a V8 or V10 VTEC engine would sound like
@@tommynobakaI've actually been planning to Make a custom set of cylinder heads for a 5.3ls that have a similar mechanism to Honda's VTEC, I want to see how it would perform compared to the stock form and the power you can make with a little 4 banger Honda
@@Nocturnal5841 definitely do it and document it! Would love to see it
this too pls!
Air Engines are Back Baybee!
People been making Lego vacuum engines for a while now this is just a glorified version of the Lego ones. I saw a Lego v16
I mean the first engines were steam engines which is basically what this is
But instead of pressurized steam it's pressurized air.
*_THE BLACKER THE BERRY, THE SWEETER THE JUICE BAYBEE!!_*
@@dewaltdrill409 Go make your own if you’re so amazing
@@tristan6509why do you start a comment with “I mean,” it’s so strange to me how people write conversationally. Another one is “Honestly,” which I hate.
For a mechanical solution of actuation of the Vtec you could use a centrifugal clutch or a centrifugal switch
Was literal about to comment this haha
was gonna say the same, i like this idea
Good idea!
An external flywheel with weights on springs or gravity, like a steam engine, would work for enabling your VTEC mechanically.
Yeah sorta how like CVT works?
I've been designing a vvt system using centrifugal force at the cam to enable more cam timing. I'm building it on a single cam 125cc
@@_skyyskater yeah something like that
yes, this is called a governor
@@elywickander4666 yes, but not in this situation
I love the fact you're able to make such seemingly complicated systems far simpler to design and 3d print! I'm actually working on a VVTI system for one of my engines and your video has given me some inspiration. Thanks bro!
Thanks bro! you should look into something like Toyota's VVTL found on engines such as the 2zzGE. VVTL is pretty much Toyota's equivalent to Honda's I-VTEC and still very cool!
You should look into the centrifugal govener system they run on small Honda motors could be simple to print
It needs a turbo
Two turbos*
you could make a system sort of like old tachometers, where you have two plates with magnets spinning individually where the vtec plate has a torsion spring to set a minimum rpm
and the other plate is connected to the crankshaft.
Probably the most interesting suggestion yet (and complicated lol), using Eddie currents and a spring to actuate the VTEC is genius!
I would suggest to make it multi cylinder if you go for sounds. The timings between cylinders is really important when it comes to the engines melody.
For the automatic vtec engagement maybe use valve float with a really late actuation and a buffer. Meaning that you have a cam with a buffered peek that actuates vtec. At low speeds the buffer compresses and the cam isn't triggering the pin. But at higher speeds the buffer has not enough time to buffer the cam peak and it engages the vtec pin.
He should ask yamaha 🤣
I don’t know what you mean by buffer. Do you mean the opposite of a compression release pin inside a cam on small engines? One that comes out at high rpm instead of hiding at high revs.
@@_..-.._..-.._ I thought of some really low pressure hydrologic spring. That tries to push open the valve and at speed it has less time to compress qnd eventual overcomes the valve return spring.
But I read others mentioning a centrifugal clutch which is likely the better and an already proven system.
amazing work man! Having the pressure work to your advantage to close the valve is pure genius!
Thanks! I was semi-inspired by how BB gun valves work, except that BB gun valves actually seal against the air pressure rather than fill a valve body up like my design did
@@CamdenBowen niceee
I'd also add a bushing or bearing between the rod and crankshaft to reduce friction, heat, and wear. Many small 2 cycle engines can run at crazy high rpms and last for years using bearings
i have a 50cc 2 stroke mounted on a bicycle and another one thats been on a bicycle for 10 years and still runs fine
What a clever solution to the valve problem! Looking forward to seeing more from your channel soon!
amazing project! really cool!
the exhaust is a really cool idea, now add a centrifugal glutch that drives the VTEC mechanism at a given speed ;)
Thank you! I was thinking something similar to how a hit-and-miss engine operates using the centrifugal working principal
@@CamdenBowen i like the sound of that, you are going full circle in using steam engine technology (hit and miss) in modern engines (VTEC)
I am looking forward to a VTEC hit and miss engine!
please note: hit and miss is originally designed to keep the engine running at a constant speed
In other words, where VTEC makes the engine faster, Hit and miss keeps the engine at a constant speed :)
this also explained vtec in an easy to understand way. commenting for the algorithm, may this video spread far and wide all over automotive youtube!
that is so cool man i always liked air powered engines but theres not many content about it. Its cool to see
Only seen 2 of your videos so far... but very entertained. Your persona is super familiar, very relatable attitude. Happy to see your future content!
Thank you! I hope you will stick around!
i loved tom stanton’s air engine series
glad to get this recommended to me
Bro this is so cool. This is some of the most I’ve learnt about engines and it’s 3d printed!
Thank you!
@@CamdenBowen no worries
Bro that valve design detail at 2:40, genius, absolute genius. I still have to finish the video and im sure ill be further impressed. but that made me press subscribe!
These are my favourite videos right now
Title was all I needed to subscribe. I can't wait for more
So proud of the quality of your videos these days. Also the views your getting goddaaamn
Thanks bro, started from acommontoad now we here
Perfect timing!!! I was just browsing your channel moments ago wondering when your next upload was gonna be lol
this is the first video I've watched of yours, and I LOVE IT! I'm definitely subscribing. this channel is so good!
Thank you so much!
I dig it. I build honda engines for fun and you nearly nailed the explanitions. Nice project and an even better video.
Thank you! Glad an actual Honda engine builder appreciates my plastic engine lol
An alternative approach could be to design a flywheel that harnesses the centrifugal force generated during rotation. In the past, many steam engines and other rotating machines were kept at a certain speed using this method. By utilizing the centrifugal force, the flywheel could effectively engage the VTEC mechanism. This could provide a potentially efficient and reliable solution while minimizing additional friction in the system.
Another idea is to utilize the principle of "valve float." This occurs when the camshaft rotates at such high speeds that the valve lifters begin to float and cannot fully return to the base circle of the cam. By incorporating this principle, it would be possible to activate the VTEC mechanism. The advantage of this approach is that it is likely to consume less energy compared to a centrifugal flywheel clutch plate. This could provide an efficient and energy-saving solution for engaging VTEC.
Eddit: other idea
Incredible content, you are very underrated
This helped me understand vtec way better than anyone else ever described
Thanks!
@@CamdenBowen no, thank you!
I love that self sealing valve! The air valve was one of the biggest pains in the ass when i was building mine wish I thought of this!
Thank you! I will be using it from now on in all my engines
Finally the algorithm worked, I loved your video about the 3d printed carburetor, greetings from Brasil 🇧🇷🇧🇷🗿🗿
I really wanna see you make a 4-8 cylinder now! Very cool. ❤
You could use a centrifugal clutch, like an RC car uses, the engage VTEC at a certain RPM. Based on the springs inside the clutch you can tune at what RPM it kicks in.
You must use ABS fillament instead of PLA/PETg for higher temperatures and CF for frictions
Fibre filled filaments are terrible for friction joints, the fibres are abrasive so they wear out the joints.
@@H34... try pa6 cf
I dont know why but I am always super hyped when I see new video from you ❤👍
Thank you so much!
+REP for the exact eurobeat song playing during the ek9 fight vs the ae86, that made me giggle.
Great video though, really is cool to see VTEC implimented into an air engine.
Thank you! Glad someone else appreciated the Shingo reference
Great little engine.
For a mechanical solution, you could make some sort of governor that actuates your solenoid. It would need a bit of linkage and weighting the governor to open at the right rpm might be tricky, but it would be totally mechanical.
To kick in during certain RPM, perhaps look towards something steam engines couldve had which was a spinning shaft that raises up based on gyroscopic forces.
This is revolutionary.
If you scale it up you could make the first air powered car.
THAT PASCAL'S LAW IDEA IS AWSOME! I cant believe I didn't think of it sooner. the vtec idea is a good idea since truly variable timing is difficult to do, especially at small scales. Im making a 2.5cc 3d printed air motor that oil filled with an oil pump so it can be reliable at extremely high revs but vvti would never work on a cam thats 8mm wide under a few pounds of valve force revving to 7k rpm. however with that pascal's law idea, if I can fit it into a 2 inch tall motor, will allow for a delicate vvti system to work as it wont be under such insane forces. great video as always, I love seeing your channel grow so quickly!
Thank you! You could likely use a straw or small tube as the valve body since it has a uniform bore that would allow for a great seal with an O-ring for the top piston and also have a small size!
@@CamdenBowen thats a good idea but a straw is too weak, under 100+psi it will bend and conform to the shape of the 3d printed cylinder it is in and that would cause excess wear and failiur to seal. Im thinking getting some special size brass pipe so that it is strong and wont wear at all. the issue is a lot more math must be used for the pascals law. now I have to calculate intake pressures based off of the motor rpms and other factors so i can design an engine that wont float the valves until after the redline and then I gotta find a good atio between the closing and opening force for each different engine, but it seems really worth it cuz this allows for very little wear, a smaller valve system, and a motor capable of much higher pressures.
You sir are hilarious! The intro, 5:06, and 7:44 are some of my personal favorites. And your builds are hella impressive. Subscribed
Thank you so much! Glad you appreciate the rocks thrown lol
great video as always, keep it up!
Thanks bro!
intro was funny asf, been looking forward to this video
Thanks! I felt that the intro needed to really portray what VTEC is lol
That header sounds just like my gokart or the old honda clone motors we used to race with!
Man thats cool! Im really impressed! I think I'll now design a 5 pot 3-D Printed air engine....I just like that 5 Cylinder sound but never thought to do something like this with my 3 d printer until i saw your videos✌️
This is by far the coolest air engine ever biult! If you take a Demel to the exhaust you can make the exhaust port bigger so more air can escape. But there definitely needs to be some bearings in there. Cause that plastic on plastic action isn’t doing the engine in favors
Well done, Gordon
A spring loaded ball valve that triggers at a certain psi would probably work for enabling the vtech, you can also adjust when it happens by changing how strong the spring is
My ideal automobile has mechanical valve timing & fuel injection, a preselector gearbox, and zero essential computers. I enjoyed your experiment!
Thank you! Maybe I will do all of these!
A simple solution to your automatic vtec would be something like a steam engine governor. As the output speeds up, some weights are flung out and that motion engages the vtec.
If you are looking for it to activate under load, make a coupler that allows for about a quarter-turn free play. Use that relative motion between input and output to activate the valve timing. Easiest thing to do there would be like on those pull-string toy helicopters. Essentially couple of circular wedges that push apart as they are turned. In this case a spring would keep them together, and once under enough load to overcome it, the outer half of the coupling pushes a lever that operates the valve timing mechanism.
Also, nice Half Life "dunk" sound effect at 5:45 :D
Amazing video man
Thank you!
fairly stright forwards, like steam engine style limiter, or governer, have a spinning counter weight butterfly looking thing belt driven, so as it throws out the weights by restraining the base the top can move freely and get closer to base and then push in the pin, or a through pin to activate the vtec plunger as a desired rpm range
When you mentioned triggering the vtec mechanically, I remembered that centrifugal clutches exist. There could be a way to 3D print one and tune it to kick in when needed; I'm just not sure how a static/rotating thing could trigger an in/out mechanism...
The screwdriver, the most versatile tool, used from tensioning belts to splitting spheres
great video earned yourself a new sub! love hondas
Compared to other yt guys building air engines, this is much more advanced level
I see u are a cultured individual... loved the initial D stuff
Shingo is one of the first things that came to mind on the subject of VTEC lol
for the mechanical vtec activation you could use the same design that a governor uses except instead of modulating throttle at whatever rpm it just pushes harder and harder on a spring and then at whatever rpm it has enough force to push past and enable the vtec actuator
You could have a small air passage from the intake that leads to an adjustable valve for a pneumatically actuated solenoid
Something like a governor on a lawnmower engine. It’s gear driven and uses weights to move a lever at a set rpm using spring tension
5:13 Rip fish that was chilling
That's pretty tight bro.
new watcher here,.....your comedy is perfect ! it reminds me of Integza
Thank you! Glad someone thinks I'm funny lol
I suggest adding the weighted rotating levers that contract upon higher rpms. I dunno what they are called, but i know that they are used to measure rpms through centripetal force. Put that on the valves themselves and it should work right in theory if you add the right springs to counter the rotating levers forces...
For a mechanical engagement, could you maybe make a sort of centrufigal clutch? You would have to fine tune the springs, then adjest them pretty often as they get worn out so that they are still engaging at the correct time, but its the first idea that popped into my head.
One of those spinny ball governors you see on old steam equipment might work well for triggering the switch
Love your videos
Thank you!
@@CamdenBowen I DONT CARE WHAT OTHER SAY BUT YOU ARE UNDERRATED
It’s all fun and games until a ball bearing hits you in the eye 😂 great idea for a weighted flywheel though!
use something like what they used in old diesel engines for fuel control, so it engages at the higher RPM automatically or add a torque slip gear for it to engage at a certain load
It would be cool to see a compliant rotory clutch used to actuate the VTEC!
Put oil in the crank case and an air oiler on the air supply to help
Valve sealing and reduce friction
Plus this guy is funny!!! while also being pretty damn smart! Very entertaining as well! Thanks Camden!!
Glad someone thinks I'm funny!
This is just awesome
You could make a centrifugal clutch for auto VTEC. Using complaint mechanism weighted pawls on an inside geared wheel.
You can use a mechanism closer to hit and miss engines to deal with the VTEC.
A centrifugal actuator similar to what makes up the governor inside little honda VTwins might be usable to activate Vtec. Could be tunable based on either mass or radius.
I appreciate the stone throw
With your crankshaft melting, I experienced the same issue at high rpm, which was completely resolved by using petg instead. PLA will soften very easily under heat. PETG will do amazingly :)
I was going to recommend ABS but yeah, PETG would probably work.
The funny thing is, it was made of PETG lol. after some more thought I realized it was probably due from the inertia of the piston's linear motion that caused the crankshaft to bend so severely. I may need to weld a steel one lol
@@CamdenBowen oh geez. Was it 100% infill? That's insane. What kind of torque and rpm do you think this thing is making?
@Hayden Not sure, but it puts out a surprising amount of torque at its upper range from what I can tell, also the crank shaft was only 50% but even still most engines I've made would work fine on a 20% infill lol
@@CamdenBowen danggg. I love making these kinds of engines. I'd love to see a homemade Dyno as a vid sometime! But yeah, I'd definitely try 100% before making a steel crank. Good shit man!
this is actually cool af
Amazing!
My guy made the vtec kick in
I think a governor is what you're looking for that can step between normal and Vtec at different RPM
Try and make a governor on the flywheel and use the output lever from that to engage the vtec. Should be simple and should should cool when you rev it up.
i think you should be able to somehow engage the vtec by a centrifugal force pushing on lets say a ball that would be rotating around an axis with some excentricity, you would have to tune it so it would engage at specific rpms but i think it would be a pretty simple mechanical system
To make VTEC kick in automatically mechanically use a centrifugal clutch
Very cool.
Appreciate the stone throwing break mid video
you just have to
If you want a purely mechanical mechanism to engage the VTEC you could maybe try doing something similar to mechanical engine governors or flyweights or something
NICE ENGINE
The VTEC should engage as the result of a mechanical governor. Weights spinning around against springs, and when spinning fast enough they lever a plate that pushes the VTEC engage pin in.
Try to find a way to use small bearings to reduce friction losses, should help it make a lot more power and prevent the crankshaft melting again
Build a metal crank & rod, with metal bearings (or bushings).
Look at a lawn mowers governor for a way to activate VTEC mechanically.
Have the goveror spun by the crank, & act through a spring (like it does the carburetor throttle) to a lever that activates VTEC through a pushrod that is resisted by a spring. Then it would activate VTEC at a certain RPM & disengage at a certain RPM.
Gettin in on the ground floor baby!
Awesome video man! New subscriber here
Thank you!
Find a way to use a system like those old yo-yo's called "the brain" which had a brake that was released when it spun fast enough to let it spin longer. If you had that type of system on the camshaft with two different hard stops you could possibly make it such that the smaller cam was engaged when the brake was engaged and the larger cam was engaged when the brake wasn't engaged and it would be fully passive. Might take some tuning with some sort of torsional spring so when it slows down it returns to the first hard stop but could work.
I like this comparison, I used to have a knockoff yoyo with a similar clutch system it was very fascinating. A bell housing with clutch pawls could work great
Vtec kicked in yo!
for a mechanical vtech control how about use an old school centrifugal governor that applies pressure to the vetch rod when it gets to a set speed
Cool stuff!
Thank you!
I'm sure you're already ahead of the game on this, but check out old school mechanical speed limiters! Counterweights on a shaft that raise and lower based on centrifugal force. You could hook that up with a linkage for engaging the vtec lobes
VTEC at its core is supposed to be activated based on RPM's. I'm not sure if newer systems account for throttle position as well but theoretically having something that relies on the RPM's to activate the cam switch should work
I think many of us have been studying this exact concept
You can use Colorless PLA filament to print the motors