Let's Make Robots!

"Puff " - The Magic Fire (Breathing-Fighting) Dragon.

 
Cliff Detection, Tracks Flames, Puts Out Fires, Dragons Breath Effect, Fright or Flight mode, Angry mode

"Puff " - The Magic Fire (Breathing-Fighting) Dragon.

Puff is able to Put out Fires - He Scans his Head to find the Flames - he orientates towards the Flame - and Blows it out.

If he fails to blow out the Fire within 2 sweeps then the "PANIC" mode switches in and he backs away to save himself from frying his "Chips".

Puff is able to Breath Out Fire, however this happens only when you annoy him (Angry Mode).

Puff is an Arduino based tracked autonomus Robotic Vehicle with "Cliff" and "Obstacle" detection.



( "Puff"  now has Red LED eyes to warn when he is about to fire the Flamming Breath - i installed this as a saftey feature after having a little miss-hap whilst loading the pyro tube "*+"ç*%*% it was live and fired blowing the glass tube out of its mounting  ekkk big bang and big cloud of smoke  :-)


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 Basic Setup

Custom Dragon Cut and Paste Skin.

Arduino Processor Plus Motor Shield.

2 Motors 224:1 (Track drive)

1 Servo (Head scanning)

1 Motor with Propellor fan

2 Light sensitive Probes

1 Pyro-Tube (Puffs Fire Breath)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 





Here you can see one of the black-red tipped sensors resting on Puffs whisker.

These are 3cm long tubes with a LDR placed at the bottom of the tube.

The tubes are heat shrink tubes, so this enabled me to shrink the LDRs tight to the tube.

You need to completly mask any light from hitting the back of the LDRs or you will get serious measurment errors (the back of the LDRs are also Light sensitive).

 The Fan is for "Blowing out Fire" and just clips the underside of his chin - in the Video you can hear it shaving his chin hair.

 

The Glass Tube from his mouth is part of the Pyro System as he "Breaths out Fire".

 

 

 

 

 

 

 

 

 

 

 

 Underside:-

 Set up of the 2 Gear motors

Ratio 224:1.

 

Here you also can see some neat, funtional  PolyMorph axle extensions.

 

"PolyMorph - Rules"

 

 

 

 

 

 Safety Feature No.1

 Newly Installed are the Bright Red "Angry Mode" LEDs.

 

These are a pre-warning that "Puff " is about to Fire his Pyro-Tube and send out a Flame that will do more than Burn your Toast.

 

At the moment he gets angry when you expose one of his sensors to bright light.

 

When the Red LEDs are off it also means that the Pyro-tube can be reloaded.

 

 

Safety Feature No.2

At the top of the picture is a battery used to fire the Pyro-Tube.

In line with the supply is a Reed-Switch - when a magnet is placed next to it - it switches on and Arms the Pyro-Tube ready for action (my magnet is glued to the underside of the Altoid Mint).

So i know when the Mint is in my pocket the system is safe.

To the left of the Picture you can see a relay that then fires the Pyro-Tube.

The LM340TS 7805 voltage regulator used for powering the motors (does not need heat sink as it runs very cool).

  

 

 

 

 

Head removed to show Scanning  Servo arrangement

Puff can turn his head 60-120 degree.

Any More and his head falls off.

 

 

 

 

 

 

 

Here you can see the positioning of the Sharp IR Sensor.

It does Two things 

(1) Cliff Detection - its angled downwards to focus on the floor 100mm away.

So when it sees a "Cliff" or "Drop off" the sharp gives a max. reading.

 

(2) Obstacle detection - amazingly by chance this arrangement above also works in the forward direction to detect objects - Phew .

 

 Puffs Dragon Breath Tests.

The Effect comes from a simple well known Magicians trick - totaly safe and easily controlled.

Puffs Outlook looks "Bright" so he has to Wear "Shades"

 

 

 

For those of you interested in how the Head/Body/Tail is made.

 Cutout can be obtained from Canon.

Its basically a Dragon printed onto Thick Photographic paper.

Then the Long_Long_Long Paperwork - cut-paste-cut-paste etcect.

The inside is therefore hollow so you can hide all the wires and motors etc......

 

 

 

 

 

 

 

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Nice Link - This is why i posted Puff Now - There are so many Lateral thinkers out there.

.... just have to find supplier who will ship Flashpaper to Swizterland

I actually have flash paper, but for magic purpose ^^

I got mine there : http://themagicwarehouse.com/tfire2.html

That's the cheapest website i know for magic props, but they deliver fast, and  in 6 or 7 orders i never had any problem.

Ooooh thanks for the link, now I don't have to buy from another supplier thats charging up to twice as much for the same magic trick! :P

Thanks for the super link - The prices are very reasonable.

The Flash paper way i think is the safest (particualy for my paper bot) - i think all that is required to combust it is a "Glow-plug" used to start model aeroplane motors and that should be the easy to control with the arduino.

Indeed you need almost nothing to light flashpaper, that's why it can be pretty dangerous! But there should be no risk that you set your robot on fire, even the paper parts, as the flashpaper burns really really fast.

Nice looking monster. LMR needs colour!

Impressive trick too.

What an awesome bot! The tracking is quite good and the dragon head is a finishing touch!

I can call it adorable cuz I'm a girl. :P

I have not completed the body and tail yet - basically because i am not sure how much more stuff i need to hide under his Belly.
Yay! I've been waiting quite a bit to see this guy in action. It's awesome!!
Awesome indeed! I never imagined one can build such a thing out of photographic paper. Do you think copy paper can have the same result?