Creating a LEGO Pneumatic Engine (unmodified)

[@Nico71Fr]

👍Do you like the video ? Let me know 👍 If you want to get the new instructions for this 14 years old creations, please see : www.nico71.fr/product/3-cylinder-pneumatic-engine/

[@deaded6883]

could you make larger front tracked loader or a 6x6 semi truck with a motorised trailer that holds something like a tank or a front tracked loader (TECHNIC) ON TOP! i attempted the second idea but i did not have enough power as i used 1 powered up XL motor for drive and one L motor for steering ive just broken it apart to get the XL motor out and fit 2 instead of 1 but its kinda getting anoying and making things compact isnt my strong suit in lego.

[@Nico71Fr]

@@deaded6883 I think I would be able to do it, but it is a large project ! Not sure I have the parts.

[@Nico71Fr]

@KarmesinPilz Hello, unfortunately the new switch is very hard to operate to not suitable for LEGO Pneumatic Engine.

[@Nico71Fr]

@KarmesinPilz Bricklink is your friend to find a store with some pneumatic valve (ref 47223 a or b) :)

[@royan.jdm2]

I can't open that nico 7 link...😢

[@allgrip_creations]

Great video, nice to see non-modified parts working smoothly even without any modifications☺️

[@Nico71Fr]

Thanks !

[@legolaus1]

A good design, typical Nico 🙂

[@pauserratgutierrez]

Good design! Try to replace each switch and make it switchless. You can control air flow bending each air tube. This will make it more efficient, with less friction

[@Nico71Fr]

Thanks ! Yes I know, I used it already on other engine for the first time 3 years ago. But the aim of this one was to be built with regular LEGO piece without the needs the cut precisely the hosed and tuning. Less effective but easy to build. 👍

[@pauserratgutierrez]

@@Nico71Fr I see! I would like to see a version without switches, but with unmodified pistons too. If you have the time and want to do it, it will be a cool video 😊

[@Nico71Fr]

@@pauserratgutierrez I plan to test making a radial engine with switchless :)

[@Bric_workshop]

Awesome work as usual!

[@IkeaFoodCounter]

Incredible build! Love that unlike so many this is unmodified, please keep up the great work.

[@Nico71Fr]

Thanks !

[@ZEROBRICKS]

I noticed the new gray large pneumatic cylinders no longer have any air flow restrictions, so they might be useful for a much faster LPE.

[@Nico71Fr]

Oh, that's interesting ! I need to get those so

[@jorre7921]

Love that sound!

[@rohanatorgaming0903]

this is kinda like the one in brick technology

[@Nico71Fr]

Or the one from Brick Technology looks like mine (designed 14 years ago remember). Many engine in LPE field have similarity, because it is an iterative progress.

[@Yusuffriedman]

Its been almost a year since i have done anything with legos, and i just purchased a lot of cyliders, so im now back up working with my legos. I have to watch a lot of videos about these engines again since i remember very little since its been over a year since i touched my Lego technic pieces. Thanks for the vid!

[@thundervr8441]

Very nice engine I may make it tbh I also love your vids keep up the great work bud

[@gerritvdg9689]

Well done, thanks for sharing this video.

[@JetSet523]

That's the smoothest non-modified engine I have seen.

[@Nico71Fr]

Thanks ! Not so smooth without flywheel, but then it works well

[@JetSet523]

​@@Nico71FrI'm working on a scotch yoke 2 cylinder, but it gets stuck after 2/4 power strokes. Think its a leaking valve

[@Nico71Fr]

@@JetSet523 Many things can affect the functioning. If you want some advice, you can post on Eurobricks forum, experts will help you :)

[@eonbree8593]

idk what i was thinking but instead of reading scotch yoke i read scontch yonk

[@osmik-cz]

awsome build and i build it withount the instructions

[@magnumsalyer]

That's so cool! I was wondering, could you power it with CO2 cartridges?

[@Nico71Fr]

Yes I think, Brick Technlogy tried it and it works, but do not know about the performance.

[@ThomasthetankengineE2]

​​@@Nico71Frit will blow from high rpms and pressure (CO2 catridge has 55-60 bar pressure) unless secured

[@fangthewarrior]

How did you keep the hoses from popping out? :o

[@Nico71Fr]

if the pressure is well distributed over the cycle (no locally overpressure), the tube can support the pressure. You can also add a beam 1x1 around the connection to secure the hose for high pressure.

[@fangthewarrior]

@@Nico71Fr Great to know! Thanks :D

[@hungtongkim7578]

Hello everyone, is there a video of the assembly process? Let me see

[@Nico71Fr]

There is a instructions for sale on my website 👍

[@user-tn5kk2ls7w]

Anyone know how to make his scotch yoke system? That’s all I need really

[@MeariBamu]

can the parts get more to enough for driving the air pumb?

[@Nico71Fr]

Can you reformulate ?

[@edotonno3607]

Wow

[@LabTechCol]

Bro. Para compras internacionales. Soy de Colombia

[@Nico71Fr]

Hello, I only sell the PDF instructions, that you can find in the link in the description. For the parts, you have to get your own with bricklink for instance.

[@cranemon]

What are the advantages of using a scotch yoke instead of a camshaft? Wouldn’t the added friction and play from the scotch yoke reduce speed, efficiency, and power?

[@Nothing-bh8cc]

size

[@Nico71Fr]

In LEGO, mainly size, and the play on the dead point enable to have more freedom to the other cylinder to pass their own deadspot, as the timing is 120° which is not perfect for non modified switch (a 90° would be better). On theoretically ideal engine, the scotch yoke creates perfect sinusoidal movement which is better than a crank/rod to avoid vibrations.

[@royan.jdm2]

​@@Nico71Fr this yokes" type move more easely than camshaft, even with small Lego pump it works without freewheel too, ITS an art ..don't ruin it with excessive force..

[@TomasChrastka]

does it have exhaust?

[@Nico71Fr]

Each Switch contrains one in deed.

[@royan.jdm2]

Some leaks in every switch are the exhause....

[@yelllovkitten]

Привет!

[@jpeg4113]

I cant hear anything other than the nose wistling.

[@user-ll2wk2uj3w]

А как собрать

[@andrewmcallister3529]

Charging money for instructions? lame

[@Nico71Fr]

Pretty rude. The price is very fair considering the amount of work behind. Will you work for free for living ? I am not sure.

[@allgrip_creations]

You have no idea how much effort goes in each model a designer creates, especially by those like Nico here. It takes plenty of time to design things, you better think before you speak.

[@mark.082]

Beggars can't be choosers bro

[@Sub_to_LUCAS_ZHUK_on_youtube]

Now do this with modified parts