Homemade Explosion FX

Fake concrete explosion made with a compressed air cannon. We shot concrete mix and styrofoam to get the desired effect.

Category:

Film & Animation

Tags:

• concrete
• canon
• air
• motar
• boom
• bomb
• explosion
• bang
• fire
• ball
• fireball
• fx
• special
• effects
• sfx
• video

[benhector55]

these explosions are awesome! im going to my local hardware store later. should i look at some kind of air canon?

[free2swim]

@benhector55 Google my friend. By searching the term "pneumatic air cannon" and a little of your own creativity you should be able to find what you're looking for.

[studiomlmoviemakers]

how many bar or in other words psi do you use?

[free2swim]

I usually have the best results with 75psi, slower then the dirt doesn't come out fast enough, faster then it becomes hard for the camera to see and the dust becomes too dispersed.

[baberaider18]

its just smashed concrete that looks like sand right?

[free2swim]

Sand wouldn't have the same effect. I wouldn't recommend concrete though. It's bad to be breathing in. Instead use fullers earth. That's what they use in the movies and it works much better (no pebbles).

[awesomeness7654]

Wht did you put into the barrel for the dust and stuff?

[FilmsDevastation]

dang thats awesome lol how did you make the cannon? or can you point me in the right direction to find out how to make it?

[theratscratch]

What are those bigger chunks of debris? Pieces of styrofoam? Is that how you did the punch?

[poprocks4]

Never mind that concrete mix is extremely irritating to eyes and skin....

[AMbradfordfilms]

Great effect! How big is your tank, and how much psi was used? Thanks!