I need to make a model volcano...

[videogames101]

Thx for the help guys, here it is... (I'm goign to do it again btw, hopfully with better results)

http://www.youtube.com/watch?v=W5nDDpXv3kg


Ok, i'm going to add a pin to make it explode earlier, much more lava, more smoke, and sulfuric acid with suger.... In about 1 day i'll post the results..... fun fun!

 

[Safeway]

Explosives and molten rock.

 

[videogames101]

Originally posted by: Safeway
Explosives and molten rock.

If only...

but rly, i can tape it exploding too btw....

 

[WildHorse]

Add sound effects & dramatic music?

Lighting effects?

It's not like you could have a pretty girl pop out of there.

 

[IronWing]

Air compressor and cake batter dyed red. Oreo crumbs for the solidified crust.

 

[RGUN]

Diet coke and Mentos

 

[videogames101]

Originally posted by: ironwing
Air compressor and cake batter dyed red. Oreo crumbs for the solidified crust.

You might have something here.... so you means use like dirt t build it with a hose going to the bottem, stick food-colored cake batter inside the crater for the compressor hose and oreos on the sides?

 

[imported_bum]

Middle school project?

 

[videogames101]

Originally posted by: bum
Middle school project?

does it matter?

 

[RGUN]

Originally posted by: videogames101

Originally posted by: ironwing
Air compressor and cake batter dyed red. Oreo crumbs for the solidified crust.

You might have something here.... so you means use like dirt t build it with a hose going to the bottem, stick food-colored cake batter inside the crater for the compressor hose and oreos on the sides?

If its not your compressor then put the cake batter directly into the air tank. At the very least the blown motor/circuit breaker should get you a few minutes of no learning.

 

[videogames101]

Originally posted by: RGUN

Originally posted by: videogames101

Originally posted by: ironwing
Air compressor and cake batter dyed red. Oreo crumbs for the solidified crust.

You might have something here.... so you means use like dirt t build it with a hose going to the bottem, stick food-colored cake batter inside the crater for the compressor hose and oreos on the sides?

If its not your compressor then put the cake batter directly into the air tank. At the very least the blown motor/circuit breaker should get you a few minutes of no learning.

it's mine, so i'd rather not...

 

[ranmaniac]

Thermite, although your volcano will melt through the display table and floor.

 

[videogames101]

Originally posted by: ranmaniac
Thermite, although your volcano will melt through the display table and floor.

oh yay!

is it impossible to get real help here? maybe i should head to highly technical....

 

[Rallispec]

Originally posted by: ranmaniac
Thermite, although your volcano will melt through the display table and floor.

someone else is watching mythbusters right now, eh?

 

[mundane]

Originally posted by: videogames101

Originally posted by: ranmaniac
Thermite, although your volcano will melt through the display table and floor.

oh yay!

is it impossible to get real help here? maybe i should head to highly technical....

 

[Rallispec]

how much of a mess are you allowed to make??? can the explosion be pretty violent? ie. spewing lava several feeet from the model?

 

[videogames101]

Originally posted by: Rallispec
how much of a mess are you allowed to make??? can the explosion be pretty violent? ie. spewing lava several feeet from the model?

easily

 

[adagar121987]

Nah, you best get to the technical thread to help with your high school project.
Personally, I really like the air compressor idea.

 

[Rubycon]

Sulfuric acid and sugar.

 

[SagaLore]

Colon blow and 10 taco bell grilled stuft burritos with fire sauce.

 

[Rubycon]

Originally posted by: SagaLore
Colon blow and 10 taco bell grilled stuft burritos with fire sauce.

I'm sure a rectalclastic explosion is not going to earn the upper ranks of any popularity contest unless interested members are into really kinky disgusting things.

Even though the (real) explosions involve matter moving at great speed it's also of scale. Think of the airliner streaking across the sky at 550 mph. Looks slow on the ground.

The model should look slow too. 5500 meter/sec propellant is going to go off like a gorilla with flatulence.

 

[Rallispec]

well - i think the air compressor is the perfect resource, youv'e got to take advantage of it...

here is what i'd do - start with a cardboard cylender - maybe 4-8 inches in diamter - and build you're volcano around that using whatever you want. foam, cake, anything... -- i guuess really it all depends on how big you want to go.

my next thought it to use hook your air compressor up to a balloon... place the balloon in the base of the cylinder and fill the cylinder up 2/3 with your lava material... i liked the red cake batter idea.... maybe sprinkle you're volcano structure material over the lava to hide it...

then --- start pumping air into the balloon -- it will push the lava up and over the top of the cylinder and down the edges of the volcano -- and then once critical mass of the balloon is reached - BOOM -- lava goes everywhere and the top half of your valcano (depending on what you make it out of) could get blown off... You might even put some sharp pins or needles inside the cardboard tube to make sure you get the pop when you want it.

that's my initial thought...

 

[bobsmith1492]

My brother did one with black powder in a baked clay volcano. It was pretty impressive, so I hear; the teacher got stopped at an airport a few weeks later because a dog smelled the powder residue on her coat.

 

[Squisher]

I did this in seventh grade chemistry class from a recipe from the book. It took forever to ignite, but when it did flames shot out to the ceiling and it filled the room up with so much smoke you couldn't see 5 feet in front of you. Ahhh, memories.

 

[jagec]

Originally posted by: Rubycon
Sulfuric acid and sugar.

That IS a nice one, but it would be more appropriate for undersea vents or pillow lava.

How about a super high-temperature furnace that actually melts rock, then pressurizes it to shoot out the top?