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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I am so excited - this morning the "The Green and White Flash paper" has arrived.

I did not expect the things to come so quickly.

Now all i have to do is make a tube with a glow plug in one end fired by the Arduino......

 

So the Pyro-Stage "Enters"......................

interesting spin on my cat laser, one gets a treat the other gets torched :D 
This is gonna be awesome :p 

Its just like a second childhood - this project has been so much fun.

I am well impressed with the Green Flash paper -

- did some tests already and i still have the Green Spots before my Eyes - this stuff is pretty bright.......LöL

- If you see a Big Green Flash in the Sky tonight then rest assured i will be doing some more Fireproof "PaperWork" in the morning.

Nice project beautifully executed! Congratulations.
This is one beautiful piece of artwork. Nice job on the cliff detection too.

Congratulations! Puff IS over the moon now!

So far I've noticed it in a few notable blogs myself...

  http://www.botjunkie.com/2009/04/13/puff-the-magic-firefighting-dragon/

  http://www.adafruit.com/blog/2009/04/12/puff-the-magic-motorshield-dragon/

and of course the one on hacked gadgets already mentioned.

Way to go!!

Three entries in five clicks this morning!