Building a LEGO Pneumatic Engine with Variable Valve Timing

[@Nico71Fr]

📲Building Instructions : www.nico71.fr/product/switchless-pneumatic-machine/

[@davidkumolka2462]

hi

[@Bus-8076]

I like the sound of the pneumatic engine when it's in operation. Wash wash wash wash wash wash wash wash wash

[@slimpie-behindthevids]

Cool on vid

[@Existingiswownogood]

Ya simple

[@Mikey-zr7yx]

@@davidkumolka2462 ßa

[@svenlangstrom8927]

This might actually be the first time I've seen somebody try to have variable timing on a LPE. Very impresssive!😳👏

[@Nico71Fr]

Thanks ! I have made a similar build a decade ago on my hot bulb tractor with a differential, you can check it on my channel 👍

[@svenlangstrom8927]

@@Nico71Fr The tractor was also cool! Next step should be to not alter timing but altering the duration of how long the air is injected. That way you can save some air when at high speed. The principle is used in steam locomotives when they're at cruising speed

[@Nico71Fr]

@@svenlangstrom8927 indeee it can be interested to have such thing like that

[@Whatsinanameanyway13]

@@svenlangstrom8927 I don't see why you couldn't build a LEGO equivalent of Walschaerts valve gear using this valve mechanism. Would be more complicated but really interesting

[@svenlangstrom8927]

@@Whatsinanameanyway13 I've tried but it's *a lot* of friction at least in a smaller scale so it can fit on lego tracks and it has a tendency to not run very smooth

[@brunojj1]

What a "simple", yet genious out of the box mechanism! I envy you for your freedom of spirit and creativity 🙂

[@Nico71Fr]

Thanks Bruno ! 🙏

[@shahanausmani4178]

You call that simple.

[@minecraftplayer4529]

You spelt “genius” wrong.

[@metalpiperules]

@@minecraftplayer4529 I bet you make mistakes too, mr know-it-all

[@ohandanotheronebitesthedus6247]

Drugs are bad mkay

[@TheDarkfighter101]

Fantastic work! The control panel and visual feedback of changing the timing is amazing. Great work

[@Nico71Fr]

Thanks ! I like a lot the control panel too !

[@jordanbradford7729]

Using a wheel as a cam was really clever. I love how quiet it is, and that at high rpm it started sounding like a steam locomotive.

[@haipingcao2212_.]

How?

[@RealG.Videos]

@@haipingcao2212_. how what?

[@Orzorn]

The use of that screw as an idler adjustment is awesome. I love it.

[@calyodelphi124]

This is SO COOL, and I imagine that adding a second piston at 90° timing offset would make this engine run even smoother since it's already double-acting! :D

[@Nico71Fr]

Thanks ! Yes, but it will require to have additional hose loop assembly (4 by cylinders). But if you put two cylinders at 180° you can reuse the same tubing.

[@xoABEONAxo]

this is closer to a steam train than you might realize! the timing adjustment in trains is achieved by a lever that moves the cam offset (called the reverser) and you have a regulator lock, very similar to regulator handles on steam locos

[@Nico71Fr]

Yes, I plan to look about a pneumatic engine with valve gear as on locomotive 👍

[@HW_Printing]

I love how you take the time to include instructions so people at home can replicate it. the same can't be said about most other Lego channels. Keep up the good work!

[@Nico71Fr]

Thanks ! My goal was always to propose creations that people can reproduce 👍

[@citybus3516]

the sound is magnificent, motivational, majestic, and operates like an steam engine.

[@Nico71Fr]

Thanks 🙏

[@dariasteam]

After watching the full video 3 times I was about to ask some guidance about why the red center piece must be precisely rotated but it was clearly explained in the description, so thank you for having me covered :D Brilliant work!

[@ps2slim]

I'm still lost 💀

[@dariasteam]

@@ps2slim it's needed to synchronize the valves with the piston. You want one of the valves to be fully open (and the other fully close) when the piston is at its max length. This design actions the valves by rotating the small wheel in the middle of the red center piece. Since this wheel is connected to the output shaft actioned by the piston, and lego axles only allows positioning pieces in 90º stepss, he needs to rotate the valves around the wheel to fully adjust them

[@bobafettjr85]

@@dariasteam I'm glad someone understood. I was lost and it looked like magic to me.

[@jakubprokopec2169]

Next up: Lego VTEC

[@Fbisurvailencevan]

Bro predicted the future

[@ripp_bozo]

@@Fbisurvailencevanno, he just gave the youtuber an idea💀 why yall gotta be so dumb💀

[@Fbisurvailencevan]

@@ripp_bozo why you gotta be a smart @$$

[@ripp_bozo]

@@Fbisurvailencevanwhat? are you jealous that i’m smarter than you🤭

[@Fbisurvailencevan]

Sure kid

[@stheil]

This is great, nice way of regulating the airflow! This not only looks great but also the sound it makes is really nice

[@Nico71Fr]

Thanks !

[@BrickTechnology]

Great video. The timing adjustment feature is just great. What kind of compressor do you use?

[@Nico71Fr]

Thanks ! I you notice, I have been inspired a lot from your content for editing the video ! For the compressor, it is a 50l compressor using for compressed air tools. You can see it in the video about the simple switchless engine.

[@Zorro9129]

Switchless technology is such a fascinating breakthrough! Green Gecko has also used it in his latest engine designs.

[@longnamedude3947]

As one of your longest viewers (14 Years - Yes, from the VERY EARLY DAYS), across multiple KZbin accounts, I must admit that this has to be one of the most ingenious methods of Lego Pneumatic's that I have ever seen implemented. It has been great to rediscover your channel this morning after an almost 10 year hiatus from Lego in my life due to a multitude of reasons, but I have kept up-to-date on the progress of your works as time has gone by when I can and I just want to say that it is incredible to see the changes & improvements in your skills. As a very skilled but not very vocal builder myself I can fully appreciate the complexities of your newer creations and the various limitations imposed upon them. You should be very proud of yourself! You are incredibly gifted & skilled as a builder and designer of some amazing Lego MOC's. Keep on doing what you do and continue to improve your skills, maybe one day you'll be able to sell your creations in their own uniquely printed boxes straight from your website much like Lego do themselves! All the best to you Nico, Peace ✌️

[@Nico71Fr]

Wow, such a long time, I am happy that you are still here ! Many thanks for your heart touching comment 🙏

[@longnamedude3947]

@@Nico71Fr It's great too see you are still active and enjoying the hobby! You're newer creations are obviously superior to what you made in the past, but having been following for so long I get to fully appreciate your progression over the years and it inspires me to perhaps consider getting back into doing a few MOC's again myself. Keep up the great work and I may just pop by your store come my next pay day haha Peace ✌️

[@jamesvancoppenhagen8600]

What an absolutely stunning design - well done Nico! I'll for sure be picking up your instructions

[@Nico71Fr]

Thanks 👍

[@marcal.8289]

Wow, your engine looks wonderful. ❤ I am no technician, but my heart blooms every time when I see such wonderful, well thought out and implemented creations. Just the fact that the air hose is routed through a hole in the beam puts a big grin on my face! 😂 Great job, Nico, well done! 👍 Haha, 356 internet trolls dislike this video/project ... yes, it's "just" a hobby/toy clamping blocks, but I wonder how anyone could be so stupid as to not like such a great work. No one have to like everything, but the fact of the quality and time spent in those videos is worth a thumbs up! And I bet that none of them have their ass in their pants or had to (understandably) justify their dislike. That had to be said. 🤣

[@BatteryPoweredBricks]

I love a good control panel, what an awesome build! Very inspiring!

[@Nico71Fr]

Thanks !

[@donnyuploader]

Absolutely genius work it really is! Only thing this video is missing in my opinion is a live RMP reading on that flywheel. I think your viewers would love that to see digitally how each input changes the output

[@Nico71Fr]

Thanks ! Yes I wanted to have a centrifugal governor to take the speed as I did on my steam machine, but did not have enough space in the machine, maybe for a next one !

[@donnyuploader]

@@Nico71Fr great stuff either way, keep up the good work! (Please!)

[@ryanm.191]

What you’ve built here is an oscillating diaphragm valve, ingenious way as well.

[@Nico71Fr]

Thanks to putting words on it 👍

[@account.forgotten_]

I love that it has its own cruise mode

[@typical_1493]

I’ve seen many different concepts and videos on pneumatic Lego engines I even made some of my own and this is the most unique valve system I’ve seen yet and 100% the most efficient because it only activates once it reaches a certain point

[@Nico71Fr]

Thanks ! Fell free to reproduce it to test it :)

[@weckar]

Years later we found out it was the LEGO playing with the builder all along, and not the other way around.

[@YuanxinGD]

Lego should hire this guy

[@wildestthornberry3349]

I like your variable valve timing setup. I’ve figured out a far simpler way without rotating the entire valve assembly by using a differential.

[@Nico71Fr]

Différentiel is good too, I have made a similar mechanism 10 years ago on my hot bulb pneumatic tractor if you want to check. But the problem is the play and so the backlash at the invention of the mechanism when you search the perfect timing point.

[@wildestthornberry3349]

I had wondered if play in the additional gears might be an issue, but I still want to try it. A 4 spider gear differential might help but I’ve never seen one.

[@Nico71Fr]

@@wildestthornberry3349 it can depending of what you want to do. It will not affect the basic functionning (the engine will run, the adjustable timing too) but the play in back and forth will make the "perfect tuning point" hard to find. Putting a 4th spider gear in the differential case is hard because the axis of the differential pinion is moulded in the cage.

[@wildestthornberry3349]

I’ll tinker and see if I can eliminate some of that play. Perhaps metal shafts and gears could reduce flex. I’ll let you know what I come up with.

[@CamTechBricks]

I like how you tilt the whole switch box to adjust the timing.

[@Nico71Fr]

It is indeed satisfying to search the perfect timing ⚙

[@user-wo5be5ky7j]

you have a fantastic way of making the viewers feel included!

[@karolvanlynden7562]

I think this type videos reach way more people than your 'older' videos. This one is really nice! Keep up the good work!

[@Nico71Fr]

Indeed, you're right !

[@minibattleship]

Next a V8 switchless engine?

[@Nico71Fr]

Oh god, it will requires a lot of hose spaghetti to make it run ! A boxer V6 would be easier as I can reuse some hose for the air escapement and the intake.

[@HaxMos]

Green gecko workshop is typing....

[@casbremer7793]

DAMN that is a real creative switchles design that just shows how much u know about this and it is amazing nice job!!!

[@Nico71Fr]

Thanks !

[@maximberube6920]

Incredible I didn't think there would be pipes that work as an idrollic system

[@SimonAmazingClarke]

In some respects, a very simple device, but that represents about three hundred years of technical innovation and engineering.

[@Nico71Fr]

Well said !

[@jameswaldron9280]

Tbh this makes far more logical sense then using switches, plus gives more control and is just far cooler

[@delta__g28]

Have you tought of upgrading the pneumatic cilinder. Like you could lubricate the cilinder and increase the intake and exhaust of air by increasing the diameter of the pipes and their respective intakes/exhaust

[@Nico71Fr]

Hello, yes but I never wanted to modify my LEGO pneumatic parts. This creation is more a demonstration of removing the LEGO switch by build on, and so get rid of the friction and dead point of the lego switch. Then, the cylinder remains unmodified and so have some friction. I think it will raise more rpm for sure. For now, the only things I have authorize is to use a non lego air source, because pumping over and over is not very handy for the camera, so the compressor 50l is a good addition.

[@delta__g28]

@@Nico71Fr ok. The video is yours the creations is yours you do what you want and what you can. Apart from this AMAZING video. 👍

[@dazley8021]

this valve mechanism solves alot of the mechanical issues you normally have with the valve pieces, where you have to modify them to make them less "stiff".... Tho this solution isnt new, this is a very elegant iteration of it.

[@Nico71Fr]

Thanks !

[@jameschamberlin3926]

I do appreciate that you left instructions

[@stefanrautenbach6550]

Wish Lego could make this type of stuff to buy of the shelf

[@ikonix360]

Maybe lego could also make some proper switches/valves that have very low friction.

[@edwardhammock24]

Probably the best lego custom machine I've ever seen.

[@Nico71Fr]

Thanks Edward ! 🙏

[@AiOinc1]

At higher engine speeds, adjust the advance for more power. Air propogation through the cylinder is always the same speed so you need to start it earlier for high efficiency. Cool roller cam design! Might have been better off with removing the rubber though for lower friction

[@Nico71Fr]

Indeed, on internal combustion engine, the variable timing distribution is often used because of the difference of the speed of the mixture to compare with low RPM, a good example is on the Vtec from Honda. Regarding the roller, it is necessary to have enough friction in order the small pulley rotate, if not it can slip and so do lose more power than without it.

[@raven4291]

I remember playing Lego as a kid and being proud of a wonky little house with a door and windows that can swing open. What the heck did I just watch...WOW! Serious engineering talent, I genuinely enjoy your videos! This could also fall under the ASMR category.

[@Nico71Fr]

Thanks :) Have a look to the other creations I did, it is in a different style of video 👍

[@magnumsalyer]

That is really cool! I like how it's a lot quieter than normal LPEs. Is the cylinder modified? And does it damage the hoses at all?

[@Nico71Fr]

It is not modified at all and do not damage the hose from what I have seen. I recommend anyway to disconnect the hose in case of long display without running to avoid that the hose keep the shape.

[@magnumsalyer]

@@Nico71Fr ah, ok thanks. It's good to know that if I make this I won't have to modify cylinders!

[@zelphurduzebra3439]

Absolutely beautiful the way you create, design an have an amazing theme of colors! I'm curious if you pulled this idea from an irl creation? Or if by sheer will you brought this from your head.

[@Nico71Fr]

From my head :)

[@lukaskoch7384]

0:53 way use your not the lego air switches?

[@Nico71Fr]

Hello, I let you watch this video to better understand the advantages : kzbin.info/www/bejne/hnXMnImfbd2MqMk

[@nathanmahoney6346]

The model sounds like a steam engine, and has steam-locomotive-style controls to boot! 10/10! If only I had the parts (or the budget) for a build like this...

[@SQueme]

just adding a "centrifugal governor" and you got the full Huygens / Watt machine !! nice 😍

[@m63fan]

It's so satisfying to watch. :) Congrats :)

[@Nico71Fr]

Thanks !

[@CharmingJellyfish]

I’m a noob AFOL and you have just blown my mind🤯. That is amazing build.

[@fusca3042]

hello I'm from Brazil but I've been watching your videos for a long time 😀

[@Legominder]

Genius. I played around with this valve type, but never thought as far as constructing a switch out of it. How does the blocked side release the air again?

[@Nico71Fr]

Thanks ! Each chambers of the cylinder is connecte to two loops which are open alternatively so the air can be put in and out.

[@mØØse_25]

I like the fact that he didn’t use electronics for the controls, he kept it manual like the old steam engines!

[@Nico71Fr]

Thanks !

[@hellraiser666666]

very well done! i love the control panel !

[@Nico71Fr]

Thanks !

[@akselwilliamdanenbarger7969]

You have just ceated your first Pneumatisk system, with HOMEMADE valve out of LEGO. Good job 😇👍🏻

[@Nico71Fr]

I am not the first to build a custom valve system but the first who have created this particular system using pinching loop with pusher and camshaft.

[@Leo1_Lego]

Fascinating! Great work, this is a nice follow-up from Brick Technology's video.

[@Nico71Fr]

Indeed, a great source of inspiration (brick experiment too), even if I am waaaay far behind than them.

[@ScarlettStunningSpace]

I've always wanted something like this as a kid. This blew me out of the water! I didn't know the bar could go that high!! (pun intended)

[@kokopaii]

I expected this to be a random shitpost video, I did not expect a full-on lesson. Beautifully done mate.

[@ravenstorm1203]

YESSS! Pneumatics are back!

[@DarkVoidIII]

Fantastic model. I would point out, though, that the kinked rubber hoses are the switches, so not technically a "switchless" mechanism. I would also point out that over time the rubber hoses will degrade and may suffer from air loss due to repeated kinking of them. This is because rubber products tend to do that. What really needs to happen is that someone has to figure out a 3D printed or machined part that does what the kinking action does, but allows for less overall wear and tear. Very good model otherwise, nice use of non pneumatic parts to make a very well thought out model! 😊👍

[@satibel]

pressing the tube against a flat surface with a wheel might work instead of kinking

[@ElNeroDiablo]

Well, technically the design is 'switchless' in the regards of not using Lego pneumatic switch pieces that direct airflow depending which way the lever of the switch is thrown. From what I've seen on other channels with LPE's those switch pieces typically need to be modded by opening up the inlets to let more air flow freely through them to optimise efficiency and speed of throwing the switches using the kinetic energy of the driveshaft of the engine to operate the switch piece (which in turn saps some potential energy of the system by fighting against the pressure in the switches in order to throw them).

[@AJplays09]

You know you did good when I watch over 7 times

[@Nico71Fr]

@@AJplays09 thanks 👍

[@itmus_a9270]

Skipping ahead on Lego builds videos, especially in the techic, is like that moment of distraction in math class and all of a sudden the blackboard is full of numbers and letters and stuff you have no clue on how got there

[@Fishman7523]

Absolutely insane. Impossible not to subscribe.

[@Nico71Fr]

Thanks !

[@strelokreculitan4563]

i like the sound during build :D like ASMR

[@Nico71Fr]

Thanks ! I will try to improve the sound with addition mic.

[@Jayderzomb]

This should be a lego set. Children could learn so much from this

[@Nico71Fr]

I would love this, but I do not think LEGO can produce that !

[@Jayderzomb]

@@Nico71Fr why do you think that? I think the biggest problem is the pressure generator, but just put a bicycle pump adapter to it and some pressure tank, id buy this for my future kids even for 500+$, and im just 21 years old. I personally know much about LPE's and designed my own various types. But i would have gone crazy about something like this in my childhood for sure man. I just hope stuff this gets attention. You used non modified pieces right? I use modified cylinders etc for my creations, but using OG bricks has a certain beauty to it.

[@piai55]

Very cool build, I hope to see many more with of this quality and attention to detail in the future.

[@Nico71Fr]

I hope too ! I plan to build some vehicle and then try to build a 6 cylinders radial engine with the same principle 👍

[@LegoWondersOfficial]

Sending you lots of love and best wishes for the New Year! 😍

[@firenado4295]

it nice to see a pnumatic engine running so smooth at such low pressures too. tired of people saying how the made a highspeed engine that makes a lot of noise and barely runs at 5 bar

[@Nico71Fr]

I prefer also to have a working engine without modified parts. There is more beauty with a low and smooth running engine that making it rev at max. This switchless mecanism make less noise than classic switch because the air escapement is released smoother by pinching/unpinching the loop. But of course, it has less performance.

[@firenado4295]

@@Nico71Fr yes modified parts subtract from the creativity of the design. didn't realise that this method still restricted the air flow when open. wonder if having a longer cylinder would solve that issue as the switch would be open for longer whilst the cylinder is thinner so not as much flow over time would be required.

[@meesterbeefy13]

You should see if you get better results at full power with different timing than at idle/low speed.

[@xthedudex]

Dude it is amazing 😮🎉❤

[@mylesstopmotionsandcats2482]

That’s pretty cool you can adjust the valve assembly like a distributor on a real engine

[@Nico71Fr]

Thanks, indeed I like a lot this function !

[@MrLexhoya]

I have enough parts, don't know about the hoses though, but will buy anyway. Wonderful design as always

[@Nico71Fr]

Thanks ! All is explained on the article on my website, please have a look 👍

[@skiwiepiwie1862]

What are your 3 best pneumatic builds

[@Nico71Fr]

I think (not ranked) : the Hot Bulb Tractor, Steam Bicycle and Steam Machine

[@josecarlosbasile4477]

Is it not possible give more than one like? Genius! I need to buy this instructions! Let me tell to my wife!

[@thomasthecrunkengine3512]

You should make one with multiple pistons for more torque. Great video!

[@Nico71Fr]

I will in a next video ! I dream for a radial engine !

[@JustAPersonWhoComments]

Wouldnt it be cool to see a Lego Pneumatic Engine powered car in action?

[@Nico71Fr]

It exists, have a look to Green Gecko Creation 👍

[@ardyaidil1661]

I think you can build your own village with all these amazing creation and idea😂❤

[@satibel]

using a cam part (or simply a 3x1) with a wheel pinching the tube might work to make a switch, and would probably be more durable than kinking it.

[@Nico71Fr]

As the result will be the same, why it will be more durable ? The idea to use the wanshaft with roller and pushers is not control how you push the hose the pinch it. With a cam over the tube, you can not control as the direction of the force apply to the hose will vary over the time.

[@satibel]

@@Nico71Fr when kinking you create a sharp point which will have a higher tendency to break and leak than if you have a wheel or something round pressing it, because the force isn't concentrated on a single point. you could also simply push the wheel or a cam, or whatever round thing inside the curve, though it may require a bit more strength. but given the price of 4mm ID hoses (around 2 bucks for 10m), it's probably good enough if you don't mind replacing them every like 10-20 hours of run time or every year or so

[@Nico71Fr]

@@satibel I have made different switchless mecanism based on pinching loop and for now, none of my hose are damaged in any kind so I can not tell about the possible damage. But I am interested to see your solution, because the fact that creating a pinching loop enable to stop the air with a very little force so this is an important feature to have a smooth operating engine.

[@BrotherCreamy]

I thought the throttle was going to be a cylinder which controlled the timing angle, so as to allow forward and reverse, and acceleration/deceleration.

[@Nico71Fr]

It can be possible indeed, but I have prefer to decouple both mechanism for a first try.

[@lolsovs]

You have a split second overlap in your timing, and since air isn’t depressurized instantly (even though it’s fast) you have pressurized both sides of the piston for a moment, thus slowing the LPE down. Why not change the timing unit for each inlet to be a differential gear with worm drive. You could also play around with overlap and opening timings, arguably pressurizing at TDC or BDC doesn’t produce torque (for a split second).

[@Nico71Fr]

It would be interested indeed to separate both chambers of the cylinder with two camshaft in order set up correclty. As you may know, the volume of the retractation chambers is smaller and so require less air, or less time so it is a good idea to improve the engine with more controls (keeping the didactic feature).

[@lolsovs]

​@@Nico71Fr I suggest you also try inverting the mechanism. Now its always open and forced closed by the cam. Instead, if you add a lifter (with spring) you can keep it always closed and forced open. This is much more suitable for finetuning the timing. You can also add leverage to the lever and thereby reducing the friction of the cam system. Another suggestion is to make a pivoting mechanism whereby you can increase the distance between the lifter and cam, this will effectively allow you to adjust the duration of the opening.

[@lavendeeendyaaaa]

I love contraptions

[@dazley8021]

So I have experimented with this valve design and I noticed that once you kink the hoses, they like to stay kinked and that reduces the airflow. I came up with a different design that should in theory still work, but without having the hose in a permanently kinked position. (and its not the squish valve either, it still employs the same technique as this valve, but instead of pushing it from the side, it pushes the hose from the top and the hose itself is significantly shorter)

[@Nico71Fr]

I would be interested to see you version ! Do you have a video ? I have seen from my experiment that the hose is very important, if you use the new one it is hard to pinch, but you can use the soft one. The other solution is to use a mecanism to unpinch the hose if they keep the shape too much or increase the pressure.

[@dazley8021]

@@Nico71Fr My first prototype, while allowing for much more airflow due to the different orientation of the hoses, makes it also abit more stiff. It's still easier to operate than a LEGO valve, tho, and its more compact than your version. I noticed another "flaw" with this kinda valve designs. If you use an airtank, it will lose alot of pressure each time the valve enters neutral state.

[@Nico71Fr]

@@dazley8021 Please share you design in order I can see it, I am very interested 👍

[@dazley8021]

@@Nico71Fr I'm thinking of how. I might just revive my Brickshelf account for this. I will see what i can do!

[@Nico71Fr]

@@dazley8021 You can use bricksafe also, please send me a link as it is ready 😀

[@1.618_Murphy]

Finally, Brick Technology's worthy opponent! 😹 Keep it up. 👍🏻

[@Nico71Fr]

I do not think I am an opponent, rather a colleague ^^

[@1.618_Murphy]

@@Nico71Fr Fr! 🐱 Colleagues can be opponents sometimes! Just like in a friendly match!

[@JaceN3D]

Super cool, and we get to see how to build it in the video!😃😃

[@Nico71Fr]

Indeed, I hope it can help !

[@TheAurgelmir]

I've watched this back a few times now, and I'm still not quite sure what the angle of the red structure does to the timing?

[@Nico71Fr]

I changes the angle between the crankshaft and the camshaft assembly, which changes the timing point or the engine.

[@TheAurgelmir]

@@Nico71Fr ah thank you. To me it seemed like there was no change of angle. But I should have figured it out. Thanks for the reply

[@FrostedGamer12]

Bro is producing his own energy

[@Mrwouter1231]

if you make the wheel spin the oposide way its like a self correcting gyro

[@cryptearth]

although I like the idea it's something not useable in practice: to get real work done the required pressure would need to be way higher and hence used hoses way stiffer - it wouldn't be possible to pinch them down to a level where they shut enough - there's a reason why valves were invented and are used

[@Nico71Fr]

Yes you right, you can use different hose and use different pressure to work. I have designed this to replace the official switch from LEGO because the deadspot is a big problem you use it without being modified. Here is use only unmodified parts and bring the pneumatic engine to everyone.

[@cryptearth]

@@Nico71Fr I never had the pneumatic stuff in hands myself so I'm not aware of flaws in the different parts I can imagine that some have flaws due to they're simplified to still make them work as toy engineers spent 100s if not 1.000s of years understanding all this and optimize - same can't be said from one single part never meant to be used for such complicated automated contraptions

[@Bus-8076]

Love the sound.

[@Bus-8076]

'Tis of course with 5:52

[@oscarzt1652]

good work my guy 👍

[@AaronBockelie]

Now build a cam and throttle governor that controls both throttle and advance to maintain a constant speed under mechanical load.

[@Nico71Fr]

It would not be possible using plastic as LEGO, has it doesn't have enough inertia and too much play.

[@markiobook8639]

excellent work- just earned a new subber

[@Nico71Fr]

Thanks ! Welcome :)

[@clct9406]

there was another youtuber who opened up the cylinders, to put in oil or silicon spray, i dont remember.. in anycase it went much smoother afterwards

[@Nico71Fr]

Yes, this gives a modified cylinder, can be done on LEGO switch as well. But it is a pretty complicated modifications so I prefer not to do that as the purpose of my creation is that people can reproduce it using only the building instructions.

[@nikpan9744]

This is pretty awesome!

[@luinixg]

The only missing thing would be a centrifugal governor for measuring the speed… or even for self-adjusting its speed 😊

[@Nico71Fr]

I have made one on the steam machine

[@THAT3GGT]

mans gonna have a whole car build by 2024

[@davidmarconett3820]

Wow! Well done!

[@mibo747]

Insane creativity as always NICO71s

[@Nico71Fr]

Thanks ! 🙏

[@axeldiesterweg]

Großartig !

[@ethannorris8489]

You should make a full blown motor with the same concept

[@ssuuss539]

So it kinda has vtec?

[@Nico71Fr]

More a VVT-i from Toyota or Vanos from BMW :)

[@emilmoe92]

"You're lucky that 4 bar shot of O2 didn't blow the welds on the intake... Almost had ME?..."

[@Nico71Fr]

What do you mean by the welds on the intake ?