External GEAR PUMP - 3D Printed 

Of course yes, the specific heigh of water makes it the perfect hydraulic fluid. The fundamental problem with water is erosion and rust. But since most are plastic, it is not a problem, in fact, a good option.

Heat from pressure will also make water into a steam bomb. Steam is very powerful. Makes things look like shredded tin cans.

Not really. Water is a horrible hydraulic fluid/lubricant, it has very little to do with corrosion (although, yes it will corrode metals, not just steel). All the water would be doing in a pump would be removing the heat from any friction between moving surfaces (thus why it’s working in his pump, and most industrial vacuum pumps use water in the same way, by utilizing it to remove the heat generated from any friction, not to actually lubricate.) Water on the suction side can evaporate thus introducing gas in a sealed system which does compress and will cause issues (think about bleeding your brakes on your car, you do it do remove any gases in the system, if you used water, you would constantly have gas in the brake system). You’d have to have a ton of pressure and heat while compressing water to turn it into steam. Pressurized steam isn’t produced by pumping water at high pressure but by heating it in a contained environment. the chances of creating any pressured steam from pumping water to the point you’d have an explosion is slimmer then you winning the mega millions jackpot lottery. Steam explosions are also typically caused by a steam trap not functioning correctly and allowing water to build up in a low spot of the line, and then you’ll get water hammer but at what ever pressure the system is at, and it breaks stuff. Think of any water hammer you may have noticed when you shut off your faucet quickly, that’s typically between 25-50psi, imagine that at 600-1200psi plus, at the very least you’ll blow gaskets out of the line it happens to, been there and fixed that. (Bad thing is most production engineers will just wonder why the gaskets failed and solely be looking into the life span or heat cycle life of them, and you have to actually show them there’s a bad steam trap up stream for them to believe you, or if you don’t it just happens again and again)

@@marv8481 im not a geek in this, but why we should deal with steam when the water is under stress

Have you heard of stainless steel

"baby oil"...much cheaper and it's plain old mineral oil

Hydraulic oil is the cheapest oil you can buy here

@@ferguson20diesel49 Yeah same here, if anything its usually about the same price until you get into the bulk sizes, unless your looking at the lambo spec ATF fluids

That would be a roots blower

Less teeth means more impact damage?

@@acaalertor1945 Those blowers are also used in vacuum trucks to create powerful suction

Yes you are right brother 😊andras dio

Roots blowers and those with very few teeth have external synchronising gears. Helical gears can be used but you have to make allowance for the liquid trapped between the meshing teeth that is forced axially along the meshing gears.

i actually designed a resin 3d printed check valve. it held 120 psi of air without exploding. i used siraya tech blue. i wouldn't recommend some fragile cheap resin. but I like the idea of adding one to his water bump.

The leaky pumps were funny at first, in these videos, but now it's driving me nuts. LOL. I love the videos, but I really want to see him fix the leaks.

A chamber can be created for priming without affecting the design of the pump. A simple screw for the opening, the air affects the performance of the piston.

He could have at least put a foot valve on the suction 😩😩

me too.

Correct. A self priming pump uses a diaphragm to create suction on one side and pressure on the other. Requiring only the flow of air to get the fluid moving. Sometimes called chugger pumps but often just diaphragm pumps. However: many of the lines in your car use vacuum generated by the engine to pull on feed lines until a pump can engage the fluid.

From I have heard from a guy whose job it is to study this kind of stuff, told me that even the supper expensive pumps can only suck like 2 ft. or 60 cm.

Exactly - water pumps mostly need to be filled with water first.

I came here to mention that I was craving a Venti Vanilla Latte

Hey rhanks for that advice! Never thought about using two motors as a way to regulate power output. It's really cool :)

Thanks mate

Shut up 5 min crafts you are just a bunch of useless "hacks"

@@r.vishal9750 I gg4 8

I need one number motor pumb pls give me purchase link thank you

It’s even got latte art.

Lol yes

So, Jacob, what you are saying is that the gear in a way is trying excape from the other gear?

@@austinspor2558 that's is absolutely what is happening. Same happens with straight gears (though only radially), and in gearbox design you calculate allowable radial shaft bending, to make sure the teeth will mesh correctly (and of course to ensure the strenght of the shaft). In this case it's only to inform of why the gear might push on the acrylic. The fix is to not have normal helical gears. Have straight or the double helical or whatever it's called 😅

​@@JacobKRP yeah!!! Youre comenents is right, i work pumps gears and y not see helicoidal gear in this pumps.always have a rect gears .and no have a presión in the housing gears , becuase the presion is generate after the fluid trought for the gears...

That's right. A good little gear oil pump i and few others in the waste veg oil for vehicles use is a brass gears and straight gears. Its all over ebay etc must been a good little popular design. I took it apart pretty basic and a bush as you stated. I'm no engineer but its interesting id like be able make one but bit past me with the basic tools i got in my shed. Its a good little solid pump, i know ppl have pumped 1000's ltr wvo years it's intermittent and reversible and a thermal cut out so its fool proof and 12-24v so its good for home use little jobs everywhere water, oil, engine oil etc,. i wish someone would design one for 80-100 psi and slow about 10-14 ltrs minute for centrifuge as they are way expensive and harder to find.

@jaffasoft8976 for your application I would recommend a sliding vane pump. Gear pumps are usually for high pressure and low flow applications or for precision metering. I believe diesel transfer pumps would be what you are looking for.