6 replies to this topic

[Pete B]

Hi Guys!

I saw an effect recently that looked a bit like a starmine, except it was actually more like a fountain that went off really fast i.e. using them as hits in a pyro musical. Like a blast of sudden fluffy pyro stuff

I got thinking about how you would make something like this. Would it work if you just made a normal fountain but without the choke, so like the end of the tube is more open?

[Arthur Brown]

Search carefully the lemaitreltd.com site I think there is a video log of their products there. You might get some more clues from their names.

[Creepin_pyro]

From what I've seen, they're made by using a squat gerb with no choke, with a core all the way down. The grain seemed to have been pressed on a convex nipple, thus forming a kind of nozzle at the end of the core... There was some airspace under the core and they were ignited here (from below) with an e-match. Essentially, they're an extremely short duration (typically 1/4 second) upside-down nozzleless rocket : )

[Pete B]

they're made by using a squat gerb with no choke, with a core all the way down. The grain seemed to have been pressed on a convex nipple, thus forming a kind of nozzle at the end of the core

That explains it then lol

[Creepin_pyro]

That explains it then lol

Does this help?:

Edited by Creepin_pyro, 09 July 2008 - 04:40 PM.

[pyroduck7]

kmno4 + al in a 1/4 ID tube abbout 2" tall no choke (or itl explode )

[Richard H]

KmNO4? Not a good idea!