Lastre regulable SUB RC / RC SUB adjustable ballast

[Ibringthetruth1]

Thats nice. is that how store bought rc subs work too?

[sebastianvdm]

como lo hiciste?

[Robertsa07]

I have a diploma in engineering, and even this takes skill if you made it by hand, subs can be hard but easy if you know what your doing.

[nunchuck19]

does the water run along pipes and eventually out of the sub? and on many rc subs i see i never saw where it went out

[tgnjkl]

YES, the water gets in and out of the syringes through pipes that connect to the outside.

All submarines wiht static immersion system, expels out water to exit to the surface.

[highrevin]

You should join us at ww w.sub pirates .co m we would love to see more of this

[hurlingstar1]

That is a great use of technology =D

[LoquenLucho]

So when that "bottons" go up the water enter into the bottle and the submarine will go downstairs

[dustinkervodka]

I wonder what happens to The air in the piston that is compressed while submering?

You cant let it out then you would get vakuum, right?

[tgnjkl]

The back of the piston has no closure or valve, the pressure is the same that inside the submarine when it is closed tightly before placing in water.

The air in the back of the piston does slightly increase the pressure inside the submarine when it absorbs water from the outside to the immersion.

When expel the water to rise to the surface, the interior pressure returns to normal.

[dustinkervodka]

@tgnjkl Aah, thank you very much got quick answer!

ME and a classmate are making an rc submarine as a school project.

We've also had thoughts about having it being powered by an hydrogen fuelcell.

Do you have any experience with fuelcells?

Greetings from sweden

[tgnjkl]

I have not experience with hydrogen fuel cells, only know the theory.

A submarine is already complicated by it's own, unless you do a degree in engineering, make a submarine that works even if a conventional electric battery, is a work that deserves the maximum punctuation.

Ask your teacher about this before fetch much more work than they already have a submarine.

[Atomic9cautions6]

No seria mejor utilizar un tanque de agua distribuido por la parte inferior del submarino con un tanque de aire llenado con un inflador electrico?

Como el de los submarinos reales.

un saludo

[tgnjkl]

Si se dispone de los medios técnicos, de la bomba de aire y del tanque de aire con sus electro-válvulas, es posible.

En mi caso no es así, por eso he desarrollado esta idea, que funciona con materiales caseros.

[k313k]

What happens when you lose power while submerged?

[tgnjkl]

The sub has a homemade electronic protection circuit against several types of failure including the total loss of power, which liberates the 2Kg. fixed ballast in the exterior part below, then the sub without any type of mechanical or electric help, rises for his own buoyancy.

You can see the whole project in the web mentioned at the end of the video, search for the "submarino" topic by author "tgnjkl".

[SVTCO]

Great idea. Love the creativity.

[xbob627]

the feeling u get when u make something from scratch is awesome......nice man

[welshpete12]

oh it would work ok, the only thing is the boat would have very little reserved bouncy on the surface . Equal to the amount the weight of water in the two cylinders. But they would need to be set up either dead centre or just froward of the C/B

[5heeshi]

I like cheese

[1kreature]

Very nice!

Elegant solution.

The point is to balance the sub close to neutral boyancy so that the small change provided by the syringes will adjust the "float level". This would allow for very fine control and might even allow that 3ft submerged neutral boyancy float that is so hard to achieve.

I think there might be a small unbalance or binding in one of your gears though, causing the gagagagaga kind of drive.

[hantumaut]

Do you know where to buy WTC ? Thanks

[alpasonik]

MALICIMO DEDICATE A OTRA COSA

[mbcNOOFS]

word

[WAGAHEHEH]

if you are going to place this on your dream submarine mate this does not seem to work. the SYRINGE that you use are too small and eats a lot of space and not big enough to contain water to make your project to sink and at the same time to float. the motor is heavier and seems to require DC 12V supply.try working on compressed air from an air tank or maybe a vacuum tube ( sort like piston ) maybe that will work.

[vinny4punt0]

it actiuely does work u might need a bigger engine and the water it moves around is not that mutch but it will work and if u dont wat an 2000$ remote controller becouse of all the valves and channels it uses if u got compressed air this is a great solution i got my self a waterpump connected to a pvc pipe witch air in it if i let the pump run (6m watercollum) it compresses the air in the pvc pipe and lets water flow in and if i turn the pump off the compressed air will aumateacley push the water

[aserta]

great idea but that engine seems to eat a lot of power

[tgnjkl]

It "eat" about 1A. at 12V.

[ObserverSUB]

Very cool! Good work. Would love to know what motor it is....

[tgnjkl]

Is a "surplus" motor from a small printer. Is equal to a standard "speed 400" but it works at 12V.

[bakoom]

hi ehm this one only goes full up or full down ... i had the same idea, but instead if using endswitches you can also use a linear potentiometer. if you attach it to a servo-electronic, it will also drive the engine(provided the servo was big enough to handle the current of your motor) like this you get a proportional channel for the depth! please tell me if my idea worked ;)

[tgnjkl]

The motor of the tank is controlled by a channel of the command RC. When descend the lever, the tank itself full of water slowly, when to rise the lever the tank is emptied also slowly, when leave the lever in the center the motor does not move and you can adjust the weight of the ballast, leaving the submarine to the depth desired. The endswitches are only to disconnect the motor once arrive at max. travel and to protect all the mechanism.

[bakoom]

ok just thought to make it proportional would be easier. if you put it on a slider on your transmitter you also know how far the "pumps" have moved. but still you could put it on a failsave channel to make the boat rise, just in case of ..

[tgnjkl]

If you go to the RC forum indicated (miliamperios)in video and search for "tgnjkl submarino" you will find all information about it and the homemade schematic diagrams of a complete failsafe system to prevent lost of submarine returning it automatically to surface if an internal errors occurs or the RC signal is not good. If you have any question do not hesitate contact me by e-mail (you will found it in the Rc forum)

[planeMaster48]

really cool! Got any plans for it? I was thinking of making a balast for my homemade sub.

[ihor14]

cool but slow

[v1bre]

to slow imo

[tgnjkl]

Le sub. n'a pas même navigué, il est nécessaire de faire avant les essais dynamiques.

[DRSinte]

Que gran idea! Mui Bien!

[Push0k]

good idea

[tgnjkl]

When the syringes sucks water, the air in the later part slightly increase the inner pressure of the hull (approx. a 2,4%), when expelling the water, the inner pressure returns to normality.

[tgnjkl]

In the first test the syringes were completely damaged by metallic shavings of the construction, and is difficult to move them. With new and lubricated syringes it works very well.

[boladedragon]

y funciona bien en accion?? (asi a primera vista funciona muy bien, pero parece a veces ke le falta potencia) de aki voy a la pag web a mirar ;)

[tgnjkl]

Aun no esta probado con el sub en el agua. Va un poco a "trompicones" porque cuando lo hice no disponia de torno y el eje con los casquillos no estan perfectamente alineados, tambien porque las jeringullas que estaban puestas en la prueba son la que use para la construccion y estan ralladas interiormente ya que me entraron virutas metalicas. Aun asi llega a acumular 2,5 bares de presion.

[kwokhochan]

Thank you. I know how to make it. By the way, have you put it in your submarine? Please upload the trial for sharing. How big is the sub it can dive? Thanks again

[tgnjkl]

You can go to the WEB indicated in the video, (is a RC forum in spanish) after, clik "barcos radiocontrol" and inside this sub-forum go to to the post "submarino", then you can get more information about it.

[kwokhochan]

Cool, it really work. Where can i buy it?

[tgnjkl]

It is not a commercial model.

It is homemade desing and construction.