Lego Pneumatic Engine

[LegoEmbodiment]

https://youtu.be/UFPNWZeeXQw

Lego Pneumatic Engine.

What is it? 

How to make it?

The first it needs to finish Lego fake cylinder like in this video https://youtu.be/HcHneyewATE or https://youtu.be/0aZvWva41Ek.

The second - to add o-ring to Lego piston like in this video https://youtu.be/wZu-l32Dajw or 

 

 

.

Edited July 30, 2018 by LegoEmbodiment

[Aventador2004]

Nice job, could you are some details about it?

[LegoEmbodiment]

What exactly?

[Aventador2004]

48 minutes ago, LegoEmbodiment said:

What exactly?

Any details about the build, work in progress can help others understand and possibly comment about it. Just a tip.

[LegoEmbodiment]

Okay, thanks!

[nerdsforprez]

Flywheel was a great idea. 

[sirslayer]

Best way to  use of oxygen with your Lego Pneumatic Engine and truck!!  Great job!! 

[Aventador2004]

Great, those details are helpful to see. Looks well made now.

[LegoEmbodiment]

 

[Bluehose]

Awesome job  !

Did you use glue or modified parts ?

Can you put several cylinders with different dead point so you don't need the flywheel ?

Edited November 30, 2020 by Bluehose

[LegoEmbodiment]

Thanks!

Yes, I used glue and drilled some parts. And I'm going to put several cylinder in order to see how it works together. 

Edited December 1, 2020 by LegoEmbodiment

[nicjasno]

Very interesting. In multiple cylinder engines one does have to make a crankshaft journal between each cylinder/cylinder pair though, to prevent the crank from bending.

[2GodBDGlory]

I watched the video of this one, but, not understanding the language, I couldn't figure out how it worked.

It appears that air is pushed down onto the cylinder head until the cylinder reaches the bottom, at which point it is sent out of the hole drilled down there. After that, though, I don't see how it could be pushed back up by the flywheel against the air. Besides, such a design would have no need for all the stuff on top of the block.

Could you give me some more information please?

 

Also, has anyone ever considered using a spray can of compressed air to run a pneumatic engine in a model?

[LegoEmbodiment]

This is how it works

 

 

[2GodBDGlory]

Interesting working principle!

Are you planning on creating a tutorial video at some point demonstrating how you made it?

[LegoEmbodiment]

Yes, of course. 

[2GodBDGlory]

 

23 hours ago, LegoEmbodiment said:

Yes, of course. 

Great, thanks!

[LegoEmbodiment]

 

[LegoEmbodiment]

On 12/2/2020 at 10:48 PM, 2GodBDGlory said:

Interesting working principle!

Are you planning on creating a tutorial video at some point demonstrating how you made it?

 

[chekitch]

Really fun. Keep it up. 

[howitzer]

Very nice, I like that you made it out of entirely Lego parts, except for the glue and lube. Why did you drill out the studs of the 2x2 brick though?

Is that drill chuck Foredom handpiece for goldsmith's drill? I have the same, very useful tool.

[LegoEmbodiment]

11 minutes ago, howitzer said:

Why did you drill out the studs of the 2x2 brick though? 

In order to make air fill the space faster. 

29 minutes ago, howitzer said:

Is that drill chuck Foredom handpiece for goldsmith's drill?

That's Dremel. 

https://www.google.com/search?q=dremel&client=ms-android-huawei&prmd=svin&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjbzofFv87tAhXusosKHT_1A5IQ_AUoA3oECA0QAw&biw=360&bih=662&dpr=3#imgrc=PaJVHxG_iVXxVM

[howitzer]

33 minutes ago, LegoEmbodiment said:

In order to make air fill the space faster. 

That's Dremel. 

https://www.google.com/search?q=dremel&client=ms-android-huawei&prmd=svin&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjbzofFv87tAhXusosKHT_1A5IQ_AUoA3oECA0QAw&biw=360&bih=662&dpr=3#imgrc=PaJVHxG_iVXxVM

Funny, the one in the video doesn't look like a Dremel at all to me, here's the handpiece I thought:

[LegoEmbodiment]

 

[2GodBDGlory]

Cool! I can probably scrounge a few of those valves, and I appreciate that this version doesn't require any rare Lego parts!