Instructables

Build a robot boat using water bottles

Contest Winner
This will show you how to build a robot boat from cheap and easy to use materials, I think it is also a good example of reusing water bottles.

I used two water bottles, polymorph plastic, two motors and propellers, tape, a box, a battery and a motoruino (Arduino clone designed to work with motors, servos and sensors).
 
Remove these adsRemove these ads by Signing Up

Step 1: Materials needed:

  • Two water bottles
  • Two simple dc motors
  • Two propellers
  • Isolating tape 
  • Box
  • Motoruino (or any other microcontroller and a h-bridge)
  • Battery

Step 2: Add the motor and the propeller to each bottle

Picture of Add the motor and the propeller to each bottle
  1. Take out the bottle cap and insert the motor on its mouth (you can use some insulating tape if you see that there is space between the motor and the plastic).
  2. Use polymorph to seal the bottle. If this is the first time you're using this material you may find these tutorials helpful:
  3. Attach the propeller

Step 4: Make the electrical connections

Picture of Make the electrical connections
If you use a motoruino, you just have to connect the battery and motors' wires to the board. If you use a normal arduino you will have to use a shield or mount the h-bridge on a breadboard.

I used a SFR05 sonar, if you use it too, check this example: http://www.robot-electronics.co.uk/htm/arduino_examples.htm#SRF05 Ultrasonic Ranger
i cant get it .

can you plz tell me how you instal sonar on motoruino.

plz
Thanks.how to increase the speed of the robot?

is it depend on microcontroller ?
XicoMBD (author)  altaf hussain1 year ago
It depends on your motors and on the voltage you give them.
XicoMBD (author)  altaf hussain1 year ago
where do you connect on the motoruino.

i mean to which pin

circuit plz.....
XicoMBD (author)  altaf hussain1 year ago
Pin 2
sensors are built in on motoriono. Or you attached seperately?.
XicoMBD (author)  altaf hussain1 year ago
I attached the sonar separately.
how it cost motoruini?.
XicoMBD (author)  altaf hussain1 year ago
how much it will cost?
thanks.
ameyanaik2 years ago
awesome man !!
would love to see live video too..
XicoMBD (author)  ameyanaik2 years ago
I hope I can upload one this week :D
Hi again! I would live to see this move! Video?
XicoMBD (author)  jweymarn1 year ago
The propellers I bought were too big, so I created a different boat. You can see the photos and videos here:http://www.franciscodias.net/robots/roboat
Nice!
how well does it work? does it go fast? if so how fast?
jweymarn2 years ago
Good idea! Video?
XicoMBD (author)  jweymarn2 years ago
I'm waiting for new propellers to arrive.
When I got them, I'll shoot one video immediately.
arduinoboy2 years ago
Hi Xico! BittyBot from LMR! Hope you win! ;P
XicoMBD (author)  arduinoboy2 years ago
Thanks BittyBot!
heavyfire882 years ago
Wow..
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!