LEGO HYDRAULICS

Building instructions-
coming soon on LEGO Z PROJECTS

[@alessandrotorboli3782]

Great idea! Altought you shouldn't use water since the metal parts of the pistons will probably rust (it happened to me too), I suggest you to try with mineral oil.

[@vineethonkan]

Brilliant idea! I tried with water many many years ago in the second gen pneumatic pumps and they fell apart.

[@hamjudo]

For more choices of viscosities, use a vegetable oil. For small quantities, try some oils from the kitchen. Note that some food oils go rancid very fast. For large quantities, they sell "food safe" cutting oil for milling machines. That stuff is good for a year of use if there is a filter system. Of course, "food safe" hydraulic oil is designed for this application.

[@JoelCreates]

Love the design! How is it with leaks in the cylinders and junctions? I'm considering a project using lego hydraulics to adjust water volumes, but it won't work if there are any leaks

[@motocraig7]

the valves would leak. they arent like hydraulic valves at all.

[@brickbreakdown1254]

Have you experienced any advantage over pneumatics?

[@jacobcombs1106]

this could work as a bilge pump for a lego ship lol. Put in a sensor that when it detects water tells the system to run until it doesn't detect water anymore. Boom automatic bilge pump.

[@EliEverson-jv4io]

use very thin oil it lubricates and flows smoother

[@gtjack9]

Do you have a pressure relief when the piston reaches the endpoint?

[@koosnaamloos]

No

[@npljojo]

@@koosnaamloos , How that?

[@JsausageandbunEaterWithoniOn]

Nice work I did something similar with some of my cylinders and the larger (party metal) ones rusted and are now unusable, but the smaller plastic cylinders still work fine (To be fair, I wasn't very careful about cleaning them). I wonder if using some kind of oil instead of water would stop the metal parts of the larger cylinders eroding over time? Apart from the rust issue, in my experience lego pneumatics work great as hydraulics. Great video!

[@zvonimiridzotic7965]

I used wd40 spray to maintain cylinders and it works (LEGO Z PROJECTS other account)

[@rolypaullee9871]

It's nice! I think AquaBrixel will give you good inspirations. Just check the amazing water hydraulic pump for Lego bricks.

[@Link3000XD]

how do those blue pipes suck in water. how do they work. how? it makes me insane. i see those two little engines seem perfectly isolated in the water, but the arrows indicate water from the tub gets sucked in, starting from there.

[@Cathode-je1tb]

I have a question. water will not affect the operation of the pistons? Can I continue to use as pneumatics?

[@legozprojects9349]

You can use them normally for pneumatic and if you frequently use them for hydraulics from time to time clean them with vinegar to remove scale.

[@Cathode-je1tb]

@@legozprojects9349 Okay thank you

[@qamarmunir7174]

Come in Mini Hydraulic Motor.

[@Ethan-ck6iz]

Do a comparison video vs pneumatics

[@reillys7981]

USE MINERAL OIL PLEASE OR YOUR PISTONS WILL RUST

[@jelkedevries5124]

Why use watter.

[@dinhtuan752]

Powered by NXT and PF

[@camboi6103]

over time the water is going to damage the pneumatics as the water is going to rot the rubber parts that make them air tight

[@sensakurai3350]

Круто! А лего чего ни будь не может?

[@TheCybercrash]

I've tried this as a child. Didn't work. Pistions rusted and the valves just broke (leaked) and had to be replaced. Never do this with water !!!!!!!!!!!

[@lauerainer405]

no .

[@codingvio7383]

Just the fact that you have a very exspensive 200+ dollars lego NXT brick near water ain't a very good Idea homie. I have EV3 and i dont get it anywhere near water

[@username9774]

you can get an nxt for 25$

[@codingvio7383]

@@username9774 It costs at least 75$ to 100$.

[@vineethonkan]

interesting...I tried making lego hydraulics back in 1994 (yes, I was 14 at the time and all I knew about hydraulics was that it consisted of a reservoir, compressor and a piston)...sadly my attempt fell apart literally due to the water jamming the pneumatic pistons. Hopefully these are better?