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Fun Elastic Band Helicopter

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The only rubber-band powered helicopters I have found on instructables so far (except the butterfly ones) require some form of kit or special parts which must be bought, so for me (making all of the individual parts from scratch makes finishing a project a little more rewarding to me), I prefer making every part from stuff which most people will already have lying around at home. That is the purpose of this instructable.

This helicopter uses coaxial or contra-rotating blades instead of a main lifting rotor and smaller anti-torque tailrotor, because this design is easier to make and is more practical for rubber-power. I have also made "normal"-looking rubber band helicopters but they require more parts and time to make. They also do not fly for as long as this design can and they don't work without an auto-stabilizing flybar system, plus you have to add a pulley system to spin the tailrotor and this creates a bigger probability of a part not working from over-complication of what should be a much simpler machine.

Throughout this instructable I include dimensions (in brackets) of parts on this helicopter but your scale will probably be different to mine so provided you keep your scale correct to the photographs your helicopter should work just as well as mine.

To make one like this one, you will need:
- A bamboo chopstick (or other strong, light wood if you prefer)
- Thin wood offcuts (I used balsa)
- Aluminium from a can (make sure the can you use is aluminium first, you can do this with a magnet because aluminium is not magnetic under normal conditions.)
- Foam sheet(s)(I use the kind of polystyrene found in food packaging)
- 2 Pins
- A paperclip (You won't need the actual paperclip, just the plastic insulation around it. If you don't have a paperclip with this insulation on it, then you will need to find a small tube that one of your pins can easily fit through without too much wiggle-room.)
- 4 Small Beads
- Plastic (From an ice-cream or yoghurt container)
- An Elastic/Rubber Band (I find that many small ones strung together works better than one bigger one)
- Tape (Most types of glue dissolve the polystyrene foam)
- Glue
- Scissors
- Craft knife/scalpel
- Pliers

This is a fun toy to use and does not take much time to make (and it will cost you virtually nothing since most people throw away the majority of materials needed).


http://www.youtube.com/watch?v=Yhyiv7pyNlM&feature=youtu.be

 
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GremlinWonOne10 months ago
voted you in the launch it contest. good luck!
awesomecreations (author)  GremlinWonOne10 months ago
Thank you!
whoohoo10 months ago
I voted for this thing in the launch it contest. You deserve it!
awesomecreations (author)  whoohoo10 months ago
Thank you!
Kiteman10 months ago
Nice job. Any chance of seeing it actually fly?
awesomecreations (author)  Kiteman10 months ago
There is a video link at the end of the intro, but it will fly for longer if I fly it outside with a longer elastic.
I missed that - you ought to embed it in the intro, make it easier for folk to watch.
awesomecreations (author)  Kiteman10 months ago
(removed by author or community request)
awesomecreations (author)  awesomecreations10 months ago
(removed by author or community request)
awesomecreations (author)  awesomecreations10 months ago
Okay, it is working now.
Looks good!
M3G10 months ago
Nice.
awesomecreations (author)  M3G10 months ago
Thank you!
ohmdaddy10 months ago
This looks pretty cool. I am going to have to try a 3D print of this
awesomecreations (author)  ohmdaddy10 months ago
If you do, please send pictures!
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