6 replies to this topic

[completebeginner]

my first nonfountain firework. i ran out of dextrin when mixing the stars so it had half of the desired amount so the crumbled right when they were shot but i still think it was cool.

http://media.putfile.com/starmine1

[Yugen-biki]

Congratulations!

How large were the stars? The looked kind of small.

Quote: ...so the crumbled right when they were shot but...

Or was it suppesed to be like that?

[karlfoxman]

The lift looked ok, how close were you? What was the dimensions of the case? Ther stars were turned to dust i should think. You live and learn

[completebeginner]

the stars were about half an inch and the mortar was about 2.5 inches by about a foot and a half

[karlfoxman]

Do you use the lift bag method, the contained all in one with leader method or do you drop the contents straight into the mortar and side fuse it? What star composition is it? Shame they plasted to bits.

Edit: Its ok i found it to be side fused, and what prime did you use for your stars?

Edited by karlfoxman, 21 August 2005 - 04:17 PM.

[completebeginner]

i think its the crysanthemum stars but im not sure i found it in the star formulas thread it was the lift bag the same one found at infernolabs.co.uk and i dont really know what you mean by priming stars i thought you just mixed in water and alchohol and i didnt have enough dextrin so i sprayed it with a hell of a lot of starch

[karlfoxman]

Well that sort of star wont need a prime as it lights easily on its own, but other stars need a helping hand with ignition. The prime must light easily and be able to ignite the star composition without fail. The stars need the correct ammont of dextrin to give them the strength to stay as a solid lump, the lift charge thump will compress them and turn them to powder if this is not done. They must also be completly dry