Introduction: Build a Robot Boat Using Water Bottles

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).

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

  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 3: Connect the Two Bottles

I used a polymorph extruded tube to pass give structure and pass the motors' wires and insulating tape just to support the box.

Step 4: 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

Step 5: Have Fun!

  1. Put the battery and the arduino at the box and mount it on the robot. 
  2. Upload the code to the microcontroller. If you want to have a look at my code, download it, it is attached.
  3. Have fun!

Comments

author
AmazingS2 made it!(author)2017-02-01
author
548345 made it!(author)2016-12-13

yessssssssssssssssssssssssssss

Dbz_5e611f_5493334.jpg
author
548345 made it!(author)2016-12-13

so cool :D:D:D:D:D::D:D:D:D:D:D::D:D:D:D:D:::D:D:D:D::D::D:D

author
narga made it!(author)2016-09-06

http://arduino.cz/arduino-projekty-uno-wifi-lodick...

czech language, use google translator :P

author
Madhan5897 made it!(author)2016-02-21

how to attach steering options in the boat using rf module?

author
%D8%B1%D9%81%D8%B9%D8%AA%D8%B1 made it!(author)2016-02-06

thank u very nice so easy

author
abhilash+bhoi made it!(author)2015-10-23

how ll i stear it

author
AdityaG7 made it!(author)2015-09-30

How do I maintain the orientation of the motor?

author
Wei+ChienW made it!(author)2015-04-22

For some reasons I couldn't open the MiniRobot.pde..

author
T0BY made it!(author)2015-06-26

Awesome idea. Very simple method for achieving something great!

author
Wei+ChienW made it!(author)2015-04-22

what is the program for it to work?

author
KeonK made it!(author)2015-02-24

Does it actually work?

author
arup.baral.7 made it!(author)2014-12-29

hai dud I cannot find how to use the MiniRobot.pde

author
arup.baral.7 made it!(author)2014-12-29

hai dud I cannot find how to use the MiniRobot.pde

author
arup.baral.7 made it!(author)2014-12-29

hai dud I cannot find how to use the MiniRobot.pde

author
arup.baral.7 made it!(author)2014-12-29

hai dud I cannot find how to use the MiniRobot.pde

author
arup.baral.7 made it!(author)2014-12-29

hai dud I cannot find how to use the MiniRobot.pde

author
karti made it!(author)2014-06-04

hi, are you aware that the props need to be at an angle to run and not straight.

nice idea though

author
altaf+hussain made it!(author)2012-08-15

i cant get it .

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

plz

author
altaf+hussain made it!(author)2012-08-16

Thanks.how to increase the speed of the robot?

is it depend on microcontroller ?

author
XicoMBD made it!(author)2012-08-16

It depends on your motors and on the voltage you give them.

author
altaf+hussain made it!(author)2012-08-15

where do you connect on the motoruino.

i mean to which pin

circuit plz.....

author
XicoMBD made it!(author)2012-08-15

Pin 2

author
altaf+hussain made it!(author)2012-08-15

sensors are built in on motoriono. Or you attached seperately?.

author
XicoMBD made it!(author)2012-08-15

I attached the sonar separately.

author
altaf+hussain made it!(author)2012-08-15

how it cost motoruini?.

author
XicoMBD made it!(author)2012-08-15
author
altaf+hussain made it!(author)2012-08-15

how much it will cost?
thanks.

author
ameyanaik made it!(author)2011-07-09

awesome man !!
would love to see live video too..

author
XicoMBD made it!(author)2011-07-10

I hope I can upload one this week :D

author
jweymarn made it!(author)2012-06-27

Hi again! I would live to see this move! Video?

author
XicoMBD made it!(author)2012-06-28

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

author
jweymarn made it!(author)2012-06-28

Nice!

author
jackjackattack made it!(author)2011-07-13

how well does it work? does it go fast? if so how fast?

author
jweymarn made it!(author)2011-07-11

Good idea! Video?

author
XicoMBD made it!(author)2011-07-11

I'm waiting for new propellers to arrive.
When I got them, I'll shoot one video immediately.

author
arduinoboy made it!(author)2011-07-08

Hi Xico! BittyBot from LMR! Hope you win! ;P

author
XicoMBD made it!(author)2011-07-09

Thanks BittyBot!

author
heavyfire88 made it!(author)2011-07-05

Wow..

About This Instructable

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Bio: Hi, My name is Francisco Dias and I'm a student from Lisbon, Portugal. Have a look at my website: http://franciscodias.net/
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