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Author Topic: How would you power this thing?  (Read 9902 times)

Ttailspin

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How would you power this thing?
« on: September 30, 2015, 10:44:25 AM »
A simple drawing of the start of a simple waterborne Robot platform.
Plastic one Liter bottles carry a surprising amount of weight in the water, and being 'Catamaran' it is very stable. 
It's missing some pieces though, like a rudder, and something to move it through the water, 
High speed Propellers, or maybe a Sail, a Jet pump perhaps, Or my favorite, Paddle wheels...

How would you power this thing?


-Tommy

James

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Re: How would you power this thing?
« Reply #1 on: September 30, 2015, 11:04:52 AM »
I would be tempted to use a screw drive. That would allow for amphibious use.
https://en.wikipedia.org/wiki/Screw-propelled_vehicle

deshipu

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Re: How would you power this thing?
« Reply #2 on: September 30, 2015, 01:05:50 PM »
Magneto-hydro-dynamic drive!

ossipee

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Re: How would you power this thing?
« Reply #3 on: September 30, 2015, 04:12:15 PM »
My last tugboat had Zpellers, could point the props in any direction, super manoeuvrable. Similar to this

ossipee

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Re: How would you power this thing?
« Reply #4 on: September 30, 2015, 04:49:54 PM »
not z-pellers but looks cheap and fun link goes to banggood
http://tinyurl.com/nkdookd

erco

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Re: How would you power this thing?
« Reply #5 on: September 30, 2015, 10:49:38 PM »
I'd use a pair of oscillating rudders for differential wave drive, but that's just me. I'm a huge rudder fan.

Ttailspin

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Re: How would you power this thing?
« Reply #6 on: October 01, 2015, 01:26:00 AM »
I can see it now...
« Last Edit: October 01, 2015, 01:29:09 AM by Ttailspin »

James

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Re: How would you power this thing?
« Reply #7 on: October 16, 2015, 07:55:30 PM »
I can see it now...

 ;D I just got this... Heh I'm a bit slow.

ZeroMax

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Re: How would you power this thing?
« Reply #8 on: October 17, 2015, 11:17:50 PM »
I hope I'm not missing some joke here.  Didn't G have a screw drive for snow with catamaran liter bottles
DROP * FROM* WHERE 1=1
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mogul

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Re: How would you power this thing?
« Reply #9 on: October 18, 2015, 01:32:30 AM »
How would you power this thing?

Diet coke and mentos.

James

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Re: How would you power this thing?
« Reply #10 on: October 18, 2015, 03:37:50 PM »
How would you power this thing?

Diet coke and mentos.

This is by far the best suggestion yet. Then you can just use a single servo to steer it. :D

James

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Re: How would you power this thing?
« Reply #11 on: October 18, 2015, 03:40:37 PM »
I hope I'm not missing some joke here.  Didn't G have a screw drive for snow with catamaran liter bottles
That was my suggestion.

Ttailspin

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Re: How would you power this thing?
« Reply #12 on: October 19, 2015, 02:12:18 AM »
No, your'e not missing the joke, I am always serious...always..seriously... :P

Mentos and Coke is just the kind of free thinking we should be looking for. i think..
Though my Koi fish may not like the idea so much, Kinda fogs up the water.
Unprotected propellers are another complaint my Koi fish have when I am experimenting with Waterborne Robots.
Along with any electrical current flowing thru the water, Makes em' swim funny.
Oh, and they also act a little weird with PING((( sensors pointed at their heads too...
seriously. 8)


-Tommy

mogul

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Re: How would you power this thing?
« Reply #13 on: October 19, 2015, 03:06:35 PM »
Mentos and Coke is just the kind of free thinking we should be looking for. i think..
Though my Koi fish may not like the idea so much, Kinda fogs up the water.

Ahh, I missed the environmental point here, so I guess chemical reactions all together are sorta out here.

How about a propeller in the air, on a servo to steer. Perhaps on a small constant speed gas engine, use a second servo to point it upwards if you want to stand still.

Impala

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Re: How would you power this thing?
« Reply #14 on: February 16, 2016, 12:30:47 AM »
There is one problem with using soda bottles as pontoons. I've made 2 RC boats with them years ago and they work great when driving forward. But as soon as you reverse (if the cap side is the back of the pontoon) the caps can dip into the water and flip the boat over backwards due to the shape angle difference. They did it with both 2 liter bottles, and 3 liter bottles. So I would doubt that a 1 liter bottle would be any different.

I believe you could compensate by limiting reverse. But it all depends on your project needs.

 

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