Comments on: Rovio fire extinguisher

By: f-1

f-1 — Thu, 30 Apr 2009 16:49:54 +0000

Using this around any humans could prove fatal as it removes all oxygen from the air. Rovio DeathBot!!

By: Jonathan

Jonathan — Wed, 29 Apr 2009 17:47:55 +0000

My mistake
Halon also interupts the chemical reaction of the fire cycle.
But I still think the robot would be unable to carry sufficent quantity for anything other than a very small fire.

By: Jonathan

Jonathan — Wed, 29 Apr 2009 17:45:04 +0000

I think Halon is an unfortunate choice here.
Its effectiveness as a fire suppressing agent is directly related to how much oxygen it displaces.
It can infact be lethal.
But thats just because its brought the oxygen concentration below that required for both combustion and conciousness.
A mobile robot will never be as good at this as a fixed system.
I’d really be looking for soething more like a powder system or some sort of chemical deluge system.
Similar to those used to protect chip pans in restaurants.
That way it has a chance of extinguishing a small fire.
It would be a beter robot really if it carried a hose in from a tender outside the risk area.
Then it could deploy water or a Aequous Film Forming Foam.
That would be usefull.
Humans coud still do it better though.

By: Vae

Vae — Wed, 29 Apr 2009 15:15:34 +0000

Is there a “halon” that is not a CFC banned from production? or are we giving this man props for making a robot controlled ozone depleter? :)

By: joe

joe — Wed, 29 Apr 2009 14:51:14 +0000

So where is the infrared array of sensors to track flames? Don’t see anything about how it tracks the candles/ knows when they are out. That will add several G’s to the build cost.

By: anon

anon — Wed, 29 Apr 2009 13:16:47 +0000

I’d love to hack a Rovio, holonomic drive systems are dead fun to play with (independent direction and rotation vectors? awesome!). The price, however…

By: Alecks

Alecks — Wed, 29 Apr 2009 06:01:10 +0000

Halon is similar to helium in the fact that it doesn’t react with anything in your respiratory system, it is NOT poisonous. Instead of your voice getting higher with helium, it gets lower with halon. Fun stuff!

By: Dokument

Dokument — Wed, 29 Apr 2009 02:33:41 +0000

ummm.. Halon is highly poisonous

By: roshamboe

roshamboe — Wed, 29 Apr 2009 00:51:45 +0000

and what came up first, using the fire extinguisher as a jet pack or this, cuz honestly i think you woulda had more fun with the first one

By: roshamboe

roshamboe — Wed, 29 Apr 2009 00:50:35 +0000

out of all the cool nicknacks to hack you choose a fire extinguisher? you must have been really bored.

By: blizzarddemon

blizzarddemon — Tue, 28 Apr 2009 22:57:27 +0000

“We’re a little bit surprised we haven’t seen more done with these things.”

On the Rovio yes, it seems really hackable..the freon however I’d shy away from…

By: melt

melt — Tue, 28 Apr 2009 21:41:23 +0000

We’ve not seen a lot of Rovio hacks because they’re bloody impossible to drive in anything approaching a planned path! ;)

By: pokey

pokey — Tue, 28 Apr 2009 19:46:01 +0000

@hackaday: There would be a lot less spam here if you disabled links through usernames like LasVegasSunCasinoHotel did above.

By: Piippi

Piippi — Tue, 28 Apr 2009 19:36:46 +0000

That’s just funny as heck. “rovio” is finnish for pyre or stake.. so ‘rovio fire extinguisher’ is a bit redundant. :) (maybe it doesn’t like itself)

cool build!