The flywheel could also be used to help get it started. But given that it barely has any torque, I'm wondering if it would at least sustain the flywheel.
When 1mm is the difference between an engine running and not running: 3:27 Timestamps: 0:00 Introduction 0:07 The Housing 0:42 The Rotor 1:58 Outer Casings 2:38 The Eccentric Shaft 3:42 Assembling the Engine 4:09 Troubleshooting 5:45 The Final Product 6:59 Outtakes and Endscreen NOTE: I do not take credit for any of Akiyuki's original ideas, I was simply inspired by his works and wanted to create an actually working engine. Akiyuki's original video: th-cam.com/video/WnrrxUuZl4c/w-d-xo.html
I think there are multiple ways to improve torque on the engine, so I will list some: 1. Adding another rotary. 2. Adding a pro/supercharger. 3. Improving the rotor to maybe have 5 compression areas instead of the 3
Good ideas. I think the main problem with this engine is that because the peanut shape housing isn't perfect, the air leaks into the other chambers and overall the housing is not sealed well. This is something that is hard to achieve with LEGO but I think a second rotor may help.
@@laudo_au2418 I'm not an expert by any means, but I heard that they're good to burn fuel more efficiently. I guess it could work since you're driving more air into an air powered engine, but there's probably someone more educated on this platform that can answer you better.
@@laudo_au2418 Technically yeah, but when you’re already using pressurized air to power it, it makes no difference. It isn’t a combustion engine sucking air in. So it technically already has boost like a supercharger or turbo would provide for a IC engine. So in this case just upping the air pressure would be sufficient. However as the creator has mentioned, the housing isn’t perfect. It has too many leaks and isn’t shaped quite right.
Has anyone heard of the LiquidPiston engine? Like a wankel inside out, still a planar rotary shape. No torque = air pressure is constantly applied, not a timed valve. This provides kick-back torque. Adding inlet timing and a flywheel will *substantially* increase performance.
Properly engineered, with no fear of doing what's necessary: like changing the quantum/grid size of the Lego geometry😅 and contaminating LEGO with foreign substances.
You added that little pipe to make an air go through it instead of compressing. But, what you didn't noticed is that the piston blocks an air from going into a pipe.
As the rotor pushes air through the pipe, the rotor also blocks the air from moving. Since the air has nowhere to go, it has no choice but to actually push the rotor, which (in theory) would boost the engine performance. However, the boost of this is minimal since it is LEGO, and I could not achieve perfectly airtight shapes and geometry.
LOL @ all the people butthurt about the tape and cutting. The task was to figure out what it would take to make a LEGO model of a Wankel engine actually work... and that's what it takes because otherwise it's not possible given the geometry of LEGO pieces and the geometric requirements of a Wankel engine. How hard is that to comprehend?
It's a nice model, and interesting too, but it's not a LEGO model when you have to use modified parts, foreign materials, and glue to make it work. If you're going to go to that much trouble you may as well 3D print the whole thing.
Sadly, it produces very little torque due to the leaks in the rotor housing. In order to make it airtight, you would need extremely precise geometry in the rotor housing, something the LEGO system simply does not allow.
Doesn’t work great because, inlet is placed wrong, there’s no outlet, the housing has a wrong shape, it’s actually more pear shaped, apex seals don’t seal, they need pressure against the wall, also there’s no way you can create the right seal using legos against the side walls.
I am aware of the poor housing shape, but with LEGO you cannot build that precise. Unless I 3d printed it or built at a much larger scale, creating perfect geometry with LEGO is almost impossible.
its engine model, the motor is found in rx7/8 what i know, making normal piston engine is very easy but engeneering perfectly rotating triangle into oval and making it work with just kids toys is impresive
I actually used a silicone spray for this engine, not WD-40. Regardless, I think improving performance of this engine will come down to how air-tight the housing can be, not the type of lubricant. Thanks for the suggestion though!
I did not have a 3d printer at the time. You are right, 3d printing this would have been easier and more precise, so now that I have one I may revisit this sometime later.
This is not a "lego rotary engine". It uses glue, cut parts, glass/transparent plastic etc. Its a tremendously cool build! Just please do not call it lego when it is not.
@marcosstables exactly! "Mostly". It's rather easy to build a frame that looks like the outline of a wankel engine out of Lego. It's much harder to create a functioning, somewhat airtight construction that resembles the functionality of a wankel engine out of Lego.
@@ThePentti The base is still Lego so it still counts as Lego. The other things are just to make it run better (like glue and other lubrications) and he didn’t need the transparent plastic, he could have used Lego but then you wouldn’t have of seen the rotors. So I would still call it a Lego Wankel engine.
I feel like it could run a lot easier with less lubrication with a fly wheel
Or maybe another rotor for less vibrations
i cant tell if this thread is meant to be 'dirty' or not
@@leopinty5103 Bruh
@@leopinty5103 it’s not..
The flywheel could also be used to help get it started. But given that it barely has any torque, I'm wondering if it would at least sustain the flywheel.
When 1mm is the difference between an engine running and not running: 3:27
Timestamps:
0:00 Introduction
0:07 The Housing
0:42 The Rotor
1:58 Outer Casings
2:38 The Eccentric Shaft
3:42 Assembling the Engine
4:09 Troubleshooting
5:45 The Final Product
6:59 Outtakes and Endscreen
NOTE: I do not take credit for any of Akiyuki's original ideas, I was simply inspired by his works and wanted to create an actually working engine.
Akiyuki's original video: th-cam.com/video/WnrrxUuZl4c/w-d-xo.html
Really proves how clearance makes the biggest of differences!
Really crazy and probably really frustrating
hey a rotary is a rotary lego or not😂
so no wonder those apex sealings keep breaking, its hard as stone, cracks too easily
Can you make 2 rotor ?
mmmmmmmm now i wish it could be build with official parts
It is lol
@@Jackcook27 it’s not some pice is cut and that thing to make shorter
@@Jackcook27 ah yes, my favourite lego pieces: card, tape and pencil lead.
I know but sadly not even a Lego pipes/tubes even hold in air none of the less create pressure
@@alexanderwheatley2500same bro always gotta use the tape pencil led and cards
This man out here using forbidden lego tech
As I’ve said before, this is an even *more* huge of a milestone!
Keep up the great work! :D
It looks so cool and it also sounds like a rotary engine
That's awesome. I myself made a mini rotary engine for small models, even posted a video of it working in slow motion. Keep up the great work!
Thank you!
bro, I searched for this few years ago when I was much younger, and no one made it, you literaly made my dream
You may have committed war crimes in this video but I respect it nonetheless.
I think there are multiple ways to improve torque on the engine, so I will list some:
1. Adding another rotary.
2. Adding a pro/supercharger.
3. Improving the rotor to maybe have 5 compression areas instead of the 3
Good ideas. I think the main problem with this engine is that because the peanut shape housing isn't perfect, the air leaks into the other chambers and overall the housing is not sealed well. This is something that is hard to achieve with LEGO but I think a second rotor may help.
Supercharger won’t help. It’s a pneumatic engine not a combustion engine.
@@Enthusiastlist So a supercharger would work then? More air = more rpm, no?
@@laudo_au2418 I'm not an expert by any means, but I heard that they're good to burn fuel more efficiently. I guess it could work since you're driving more air into an air powered engine, but there's probably someone more educated on this platform that can answer you better.
@@laudo_au2418 Technically yeah, but when you’re already using pressurized air to power it, it makes no difference. It isn’t a combustion engine sucking air in. So it technically already has boost like a supercharger or turbo would provide for a IC engine. So in this case just upping the air pressure would be sufficient. However as the creator has mentioned, the housing isn’t perfect. It has too many leaks and isn’t shaped quite right.
Now it's time to build an RX7
Add a counter weight to reduce vibration and a flywheel should make the pulses of the rotary more smooth
Yikes, I felt the pain when you've snipped that track piece...
I love how you have a Solution for every problem that comes up!
Nice 👍🏾 really cool. I thought you stopped working on it, but seeing all the steps you had to take, i understand now!
very cool improvement on Akiyuki's design
Very cool and impressive to be able to reach so many rpm with air pump
Well done 👍
Wow! This is impressive. I've got some work to do....
I always loved the rotary engine but a Lego one is insane
Seen the word wank and I had to click and wasn't disappointed at all 💯👍🔥
you can add a counterweight or/and a flywheel to make the poweroutput smoother and not jump around as much
MY MANS DID IT HOLY MOSES
Has anyone heard of the LiquidPiston engine? Like a wankel inside out, still a planar rotary shape.
No torque = air pressure is constantly applied, not a timed valve. This provides kick-back torque. Adding inlet timing and a flywheel will *substantially* increase performance.
Properly engineered, with no fear of doing what's necessary: like changing the quantum/grid size of the Lego geometry😅 and contaminating LEGO with foreign substances.
This is sick!! loved the jump cut to step 6 it made me laugh haha
cool video man! I liked it, this is very good for a first time.
I understand the need to modify the pieces to get the necessary geometry, but it still hurt to watch
What's the point of the gasket if the apex seals don't seal at all?
Impressive. Probably the only one of its kind
Cool build!
THIS is next level Lego building.
But why did you use these graphit bars, and not other material?
Anyways, very cool build
GLUE.
FUCKING GLUE!
ON LEGO.
sick, downright sick.
I'll get right to watching the video after I'm done snickering about the word "wankel."
How are those apex seals doing?
I liked the concept of it all except the amount of drilling and superglue used
You are need a million subscribers,i wish will you to popular
You added that little pipe to make an air go through it instead of compressing. But, what you didn't noticed is that the piston blocks an air from going into a pipe.
As the rotor pushes air through the pipe, the rotor also blocks the air from moving. Since the air has nowhere to go, it has no choice but to actually push the rotor, which (in theory) would boost the engine performance. However, the boost of this is minimal since it is LEGO, and I could not achieve perfectly airtight shapes and geometry.
it works pretty well. Kinda bums me out how much it had to be modified.
Where the fly wheel at?
Oooooooffff cutting and gluing pieces hurts so much. But still great work
wouldn't a counter weight reduce the vibration?
Man clipped the track pieces but there is a piece for that
Very cool🤘. Think about making V2 engine for a bigger car, worth it?
just so impressive
You You should make a dual motor rotary engine cause it is smoother and has less vibration
GLUE?!
I credit Lego, at least partly, for my mechanical aptitude as well as my interest in building things.
you could make et go faster by screwing it to the table because some off the energy is going to make the engine vibrateing
LOL @ all the people butthurt about the tape and cutting. The task was to figure out what it would take to make a LEGO model of a Wankel engine actually work... and that's what it takes because otherwise it's not possible given the geometry of LEGO pieces and the geometric requirements of a Wankel engine. How hard is that to comprehend?
3:34 that's what she said
Mmm yes the beloved BRAP BRAP BRAP BRAP of the Mazda rx7
very cool !
it would probably run a little bit smoother if you put some kind of flywheel on it
Hi maybe make a 4rotor version
Ryosuke and Keisuke Takahashi approved
You could defitely power a Lego city with this lol
Awesome!!
RX-7: BRAP BRAP BRAP BRAP BRAP
Rx7 brap. Brap brab 😂
you need a counter weight
It's a nice model, and interesting too, but it's not a LEGO model when you have to use modified parts, foreign materials, and glue to make it work. If you're going to go to that much trouble you may as well 3D print the whole thing.
just add a counter weight for better results
Haha funny triangle go brrrrrrrrrrrrrrr
can it power a car? How strong is it?
Sadly, it produces very little torque due to the leaks in the rotor housing. In order to make it airtight, you would need extremely precise geometry in the rotor housing, something the LEGO system simply does not allow.
@@redshoebox thx
Doesn’t work great because, inlet is placed wrong, there’s no outlet, the housing has a wrong shape, it’s actually more pear shaped, apex seals don’t seal, they need pressure against the wall, also there’s no way you can create the right seal using legos against the side walls.
I am aware of the poor housing shape, but with LEGO you cannot build that precise. Unless I 3d printed it or built at a much larger scale, creating perfect geometry with LEGO is almost impossible.
Great, a rotating triangle. What's the point of that?
its engine model, the motor is found in rx7/8 what i know, making normal piston engine is very easy but engeneering perfectly rotating triangle into oval and making it work with just kids toys is impresive
Notice it’s only cranking not starting
A better lubricant to use would be olive/canola oil the viscosity is perfect for plastic. WD-40 can break down the legos over time
I actually used a silicone spray for this engine, not WD-40. Regardless, I think improving performance of this engine will come down to how air-tight the housing can be, not the type of lubricant. Thanks for the suggestion though!
@@redshoebox oh ok my bad the foam looked like something like wd 40
Bro whipped out the kragle multiple times 💀💀💀
Edit: worth
You didn't even edit the comment
cool vid
Boost pressure till catastrophic failure
cutting lego pieces was very painful to watch but cool design!
Where’s the bravo bravo brap sounds?? 😂
Couldn't help but notice there is no flywheel
now make it brap brap
My eyes start bleeding when someone glues Legos or cut them
Congratulations your engineer, even if there just Legos😂
Now make a transmission! :D
Doesn't you think using 3d printer could be an easier solution?)
I did not have a 3d printer at the time. You are right, 3d printing this would have been easier and more precise, so now that I have one I may revisit this sometime later.
you need flywheel it will run smoother
A spinning Dorito...
wow
Make 3 or 4 rotor
There was no warning that you are going to CUT and GLUE LEGOs? Herecy!
the first blooper must have hurt
BRAAAP
Kragle
at 150 psi, you should get roughly 4000 RPM.
do you make car with this engine?
4 rotor
why is shaking like washing machine
This is not a "lego rotary engine". It uses glue, cut parts, glass/transparent plastic etc. Its a tremendously cool build! Just please do not call it lego when it is not.
It mainly uses Lego 🤦♂️
@marcosstables exactly! "Mostly".
It's rather easy to build a frame that looks like the outline of a wankel engine out of Lego.
It's much harder to create a functioning, somewhat airtight construction that resembles the functionality of a wankel engine out of Lego.
@@ThePentti The base is still Lego so it still counts as Lego. The other things are just to make it run better (like glue and other lubrications) and he didn’t need the transparent plastic, he could have used Lego but then you wouldn’t have of seen the rotors. So I would still call it a Lego Wankel engine.
Its a rotary, not a wankel.
Add a flywheel
Make a 4 rotor engine
brap brap brap
This is such an amazing build, does it make compression on its own?
Do you have the names of the bricks akiyuki uses? I really want to make it
can u make a tutorial please i lik you enignie its very cool and i want to have also one of your masterpiece
He told me to tell you he said no and shut up
Try it out with steam
Brap Brap