LEGO Compact Pneumatic Compressor/Valve Unit [WITH INSTRUCTIONS!]

This simple mechanism combines a pneumatic compressor with a pneumatic valve control mechanism and only needs one motor.
Free building instructions: sariel.pl/downl...

[@wilsonfleite]

Which set have this switch? It's a new model?

[@searme]

www.bricklink.com/v2/catalog/catalogitem.page?P=bb0874#T=C

[@leettastic1]

It is in set 42080 Lego Technic Forest Machine (42080)

[@hydroworld-soontobemigrate6160]

42080 has this part. The 45400 (BricQ Motion Prime) and upcoming 42128 (Heavy-Duty Tow Truck) sets both include this piece as well.

[@catzzzz1450]

42080

[@thomaswyatt199]

Lego needs to come out with a new verison of those buggy motors

[@racernatorde5318]

Amen.

[@subsnovideos-ur4cn]

You can get a fake knock off one that preforms almost as good for like 15

[@hydroworld-soontobemigrate6160]

Yes. The LEGO Powered UP High-Speed Motors are what we really need. And in case they still don't, this is our best hope: buwizz.com/shop/buwizz-motor/

[@someonesomeone485]

Thanks for making really helpful videos like this,Sariel!I really appreciate it!

[@arnoldrimmer9161]

We need more pneumatic sets, pneumatic is the best

[@armaceerulogos]

This design is simply brilliant in its simplicity! Too bad, it wasn't used in the latest LEGO Technic Liebherr R 9800 excavator. Basing force transition to the arm, and its movement on pneumatics, rather, than electronics would introduce immense realism to the set, in which all the rubber tubes, and plastic pipes are actually purely decorative.

[@technoJoe23]

I would have never thought of this. Then again I only have five pneumatic parts, but still, this is genius. Great work Sariel.

[@topo8444]

That's an awesome design! I really hope some more Technic models come with those particular pneumatic valves since I could really use them.

[@davidhine1265]

topo84 ever heard of bricklink?

[@topo8444]

@@davidhine1265 Yes I have haha, what I'm saying is I hope more sets find use for that part. I'd probably have ordered a few of those valves before that happens though.

[@jjsanimations]

Can I just say: THIS IS EPIC

[@hydroworld-soontobemigrate6160]

Thank you so much! This is very useful design for use in my hovercraft robot.

[@vladimirchervenkov6949]

Sariel, you’re a genius!

[@valerkis8280]

I have 2 Best things things in life: Poland and Lego. You combined them, so you deserve a HUGE subscribe! Cheers from Hungary

[@searme]

Lengyel, magyar - két jó barát, együtt harcol s issza borát!

[@valerkis8280]

@@searme 🇭🇺♥️🇵🇱

[@ThinkCleverAndSmart]

Does the clutch gear wear over time if using it like this?

[@searme]

It's hard to say. I have a bunch of clutches, many of them have seen a lot of use, and I haven't noticed any difference in how they work.

[@ThinkCleverAndSmart]

@@searme Oh, that's nice! Thanks! :D

[@Sapple498]

@@searme A bunch of clutches? Does that mean 4 or 40?

[@jackradzelovage6961]

@@Sapple498 its sariel.... probably 400 lol

[@searme]

Like 6 or so.

[@ollilehtonen6764]

Tasty. I'd love to see this in a large scale tractor with multiple "hydraulic"outputs.

[@AlhayezRC]

This is awesome! I'll be putting it to use in an MOC soon!!! Thanks!

[@JediTim28]

Amazing as always...definitely looks like something I can utilize. Thanks

[@justjacob7021]

Simple but so useful idea!

[@techniclylego3563]

Great design

[@t0maz.m]

Nice idea. But how long does the white clutch holds it's grip? I mean if you would to use this mechanism for long periods of time, wouldn't the clutch lose it's usefulness?

[@icebread9335]

I think I have to get into Lego again.. Didn't touched that since I was a kid

[@mrsqueakthecat.8061]

Same here and that was 25+ years ago now and the technics sets and parts have came a long way since. :(

[@icebread9335]

@@mrsqueakthecat.8061 for me its only 9 years ago, but I truly appreciate that this community stretches over all ages its not only a toy for children, and the Lego group knows that :D but you are right, the Technic parts exploded in the last years... lets see what the future brings!

[@Angela-ln5db]

Amazing job nice mechanism

[@gkbrickworks7924]

Thank you! You gave me idea for new pneumatic functions in 42068 :)

[@grande1900]

Huh, the switch is from 42080

[@gkbrickworks7924]

Moc

[@spazzkill4092]

0:48 Acción turbo enabled sweet 8421 with this motor and better on/of control than today PF batery box

[@beerenmusli8220]

Awesome Creation!!!!Awesome Video!!!!

[@Falco_e46]

Wow no dislikes! Respect!

[@tamaslapsanszki8744]

The way i see it, this would be perfect for switching the selector rings. I mean a single compressor/valve unit could switch a few selectors. After seeing this idea i have decided to rebuild my Combat Engineering Vehicle Mk IV with pneumatic selectors in the transmission instead of the complicated mechanical system that i have been struggling with for weeks. This little compressor/valve unit is way smaller than any similar mechanical system i could come up with and doesn't have to be mechanically linked to the transmission, greatly simplifying the construction process. The only problem is now that i don't have any of the new pneumatic valves, but I guess it's not THAT difficult to get one from Bricklink

[@ollilehtonen6764]

You cna build this with old switches too.

[@kirtechnic]

R.I.P. white gear )

[@Jayneflakes]

That is clever, I like it.

[@camperator4058]

Genius 👏

[@clubbuild3544]

Love it

[@Shimon430]

Doesnt the constant friction of the clutch gear overload the motor and make it draw lots of current?

[@searme]

It shouldn't. It's not that much friction.

[@JohnnyGearBot]

Can you make instructions of a simple water pump?

[@searme]

kzbin.info/www/bejne/jqK2dqGgo8SJZ9U

[@BarneySaysHi]

Sariel? The download is missing the switch part in the parts list!

[@marios9992]

It won't be hard to find it though

[@For891]

How many auto valves do you use before you decide to use a common pump? My current moc has three auto valves but it takes a lot of room so I have contemplated changing it to just one pump. I will say that separate auto valves gives you more precise movements. This is the smallest auto valve I have seen. Nice work as usual.

[@legomasterbuilder9118]

If u need instructions to build this u cannot call yourself a LEGO master

[@nguyendangminhn]

where the air will go if the switch is at center? or when the piston is full extracted or retracted?

[@clarkanine]

I ran a pump with a manual valve in a moc last year and after a day of running the pump needed a break. Stopped working completely. Do you know how many extensions and retractions you can run on this system before it gives way and needs a break @Sariel?

[@TW39]

Hi whats the most weight can it lift and force do the air cylinders have

[@doctormario1075]

Sweet.

[@shocktnc]

Sadly your site does not work for me, I get pushed to a place called silktide when I load your site.

[@searme]

Um, what? You can't get to sariel.pl/ ? When was the last time you ran an antivirus scan on your PC?

[@Ter8314]

Nice but I don't really like the idea to use the white gear like that. It's supposed to prevent damage ? However, I don't have other idea to make it different. I'm split....

[@searme]

Without the white gear, how will the motor continue running once the valve is shifted?

[@Ter8314]

@@searme That's exactly why it's a clever idea. The only fact I don't like is that I don't know how long the clutch will survive. If you have an answer ?

[@SmashingBricksAU]

hmmm, nice compact design. How fast do you think the clutch gears will wear out given the constant wear? Using one of these little builds per pneumatic ram(cylinder) could actually be used to overcome position control issues (especially with Lego). The major issue with any pneumatic rams is the lack of position control (unlike hydraulic control). Fully open or fully closed it the majority of case that do not use sophisticated position monitoring . Thanks Serial.

[@jackradzelovage6961]

if youre brave you can put water in the system instead of air. youll need to know how to regrease your cylinders though!

[@SmashingBricksAU]

@@jackradzelovage6961 That would require more force from the pumps. Have you tried it and what was the result? Also what are you using to grease your cylinders? I have tried various things without much success, the last thing I tried was silicone spray (without acetone)

[@jackradzelovage6961]

@@SmashingBricksAU apparently stuff like vaseline works (i dont remember what exactly lego uses but its close to that) ...i personally havent regreased any of mine but ive watched other people open theirs and do it here on yt

[@SmashingBricksAU]

@@jackradzelovage6961 Thanks for the info I will look into it. I did just run a pneumatic GBC machine for 16 hrs a t a Lego show and it really needed a bit of lubricant

[@jackradzelovage6961]

@@SmashingBricksAU yeah apparently all you do is open the cylinder, goop the crap out of the piston on both sides, put it back together and then push the rod to its maximums to extrude the excess grease out of the ports. wipe up the extra and youre done :)

[@motsgar]

What program does one use to get those cool looking renders of the lego builds to make an instruction book

[@searme]

MLCad and LPub.

[@jltworks3167]

Is this going to be used for your liebherr Mobile Crane? Or anything else for that matter?

[@searme]

I have developed it for shifting transmission in my MAZ-535 truck.

[@TomWest-ir5vq]

Hi how do u speed up the air cylinder

[@searme]

Uh, pump faster?

[@TomWest-ir5vq]

@@searme do u need a air tank to make the air cylinder to work faster

[@legotechnikfanboy7949]

Can you made a instructions for the old shifter

[@searme]

I did: sariel.pl/2008/12/pneumatic-autovalve/

[@cf2851]

Is there any way to repair or restore a pump that isn't holding pressure?

[@searme]

Not that I know of.

[@czkosticka2333]

Can you make video, where will be the old valve?

[@searme]

I already did: kzbin.info/www/bejne/haSne2efidhghpo

[@paullaurance1991]

No hamster endorsement?

[@SFSAtlas]

Co?

[@rehan2118]

can you tell me if i can modify this to make an water pump?

[@searme]

I guess, but the valve is going to leak.

[@Victor-qy1mb]

Which programme do you use to create your sets on your PC ?

[@searme]

MLCad.

[@Stijn_vdB]

Can you also make this with the old pneumatic switch? I don't have the new ones😥❤️

[@searme]

You can, but given the difference in valve design it's going to be twice as big or more.

[@Stijn_vdB]

@@searme oh okay, thanks! ❤️👍

[@pics_by_rabe652]

1:07 What's that piece in step 6 (not the 2 bolts)?

[@searme]

www.bricklink.com/v2/catalog/catalogitem.page?P=bb0874#T=C

[@narbttseren9778]

Woow

[@scatterFr]

What's the black motor called

[@searme]

LEGO RC Buggy motor.

[@scatterFr]

@@searme ok thx

[@benmoreno5882]

uhm.. anyone got the parts list?

[@searme]

Bricklink does.

[@benmoreno5882]

@@searme well i meant for an easier search cause idk what most of those pieces are called. also is it possible to use this contraption as a landing ramp?

[@racernatorde5318]

Did you develop this design for a specific model in mind? Oh and by the way, its been ages since you last build a halftrack!

[@searme]

Yes, for my MAZ-535.

[@somethingreal5042]

Hydraulics you mean

[@searme]

No. This is pneumatics, it works with compressed air. Hydraulics work with compressed fluids. Pretty basic difference, and LEGO doesn't make hydraulics.

[@somethingreal5042]

ok

[@Jack-sy8hs]

This is easy to do 😂

[@CTEl7ALLlKA]

Epic music)))))))))))

[@OSTFARZHEUGE]

Build žuk

[@slitherixxx]

meh its not new