Making a submersible tracked rover

Community General Discussions
1

Well, i'm not a absolute beginner but i doubt if this is not a stupid question so here it is.

Looking at making a waterproof tracked robot wich would be able to drive intto a pool up to about 2 feet deep.

A friend of mine made me a aluminium chassis (box) wich is complete waterproof.

My problem is, how can i connect the motoraxes to the track wheels through the chassis in order to avoid infiltration of water ?

And would a RC signal still be receivable through about 2 feet of water or should i have to make some kind of a tethered system ?

Anyone any ideas please , thanks in advance.

 

 

 

2

What frequency RC Balbaro -

What frequency RC Balbaro - I’ve built a RC submarine many years ago using 27Mhz., that was fine for a couple of feet  Most important is that the reciever aerial is totally isolated from the water from memory.  BUT (thats a big but!) the penetration of the signal is related to the frequency (again from memory).

For the propellor I used a grease filled propellor tube, several inches long,  although O rings may also offer a solution.

 

Hope this helps

 

Pete

3

Faraday Cage-or something simillar…

Won’t the RC signals be blocked by the Aluminium chassis?

4

Good point Dipanjan - for

Good point Dipanjan - for 27Mhz the aerial is fairly long so I used a piece of insulated wire, sealed at the outer end and sealed to my waterproof controls area.  Balbaro will probably need to do something similar.

5

Thanks for anyone for the

Thanks for anyone for the reply.

I was thinking using a 2.4Ghz RC but i still have a 27Mhz somewhere, i believe with wich i can make the antenna stick out of the water i can manage that.

For the axes i’ll have a look at a RC boat shop.

Luckily i only need two, the idlers can remain completely external

But i’ll need quit a bit of torque do, especially out of the water for the tracks, have to add quit a bit of ballast to conteract the buoyancy,  was thinking using a pair of IG52 geared motors from Superdroidrobots with a 12mm shaft.