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homemade fireworks rocket fireworks fountain shell

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#1 PiroArt86

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Posted 19 April 2016 - 09:30 AM

Hello!

1lb bp rocket(3" inch shell).

Stars:

green wave/red wave + win 20 in the center.

video:


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#2 Aspirina

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Posted 19 April 2016 - 02:19 PM

wow! nice rocket! wath do you use for the delay?


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#3 PiroArt86

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Posted 20 April 2016 - 01:49 AM

wow! nice rocket! wath do you use for the delay?

 

Thanks, delay: 20mm bp 60/30/10 + 10% ti



#4 PIL

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Posted 20 April 2016 - 03:47 AM

Would you share your red and green wave formula. And please specify the mesh size and shape of the coarse metal you used.(I guess it would be titanium) Thanks.

#5 swapnilsutar1988

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Posted 21 April 2016 - 02:19 AM

very nice red and green colour stars..!!


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:)  :)  :)  :)  Never forget the people who asked
you to give up, so that you can
remember to call them to your success
party and make them eat up their own
words..............
:) :) :) :)


#6 PiroArt86

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Posted 21 April 2016 - 12:00 PM

Would you share your red and green wave formula. And please specify the mesh size and shape of the coarse metal you used.(I guess it would be titanium) Thanks.

Stars formula:

 

Red wave:

SrNO3 - 45%

KCLO4 - 10%

Mg(150 mesh, needle form) - 20%

PVC - 15%

S - 5%

C - 5%

above 100%:

Dextrin - 5%

Al(100 mesh, spherical) - 10%

Al(150 mesh, spherical) - 10%

 

 

Green wave:

BaNO3 - 45%

KCLO4 - 10%

Mg(150 mesh, needle form) - 20%

PVC - 15%

S - 5%

C - 5%

above 100%:

Dextrin - 5%

Al(100 mesh, spherical) - 10%

Al(150 mesh, spherical) - 10%


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#7 PiroArt86

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Posted 23 April 2016 - 04:21 AM

Homemade cake, test.

10 tubes(23mm) with adjustable angle.

Stars: red wave/green wave + winokur20 glitter, recipe above.

Video:


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#8 Aspirina

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Posted 23 April 2016 - 08:58 AM

awesome cake, very profesional! :o

how much b.p did you use for lift the stars?

I see that tubes as joined together one after another, which fuse as used? I see it very fast

Edited by Aspirina, 23 April 2016 - 09:05 AM.

«The first great virtue of man was doubt, and the first great defect was faith» Carl Sagan

 

My stuff:

https://www.youtube....w_as=subscriber

 


#9 PiroArt86

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Posted 23 April 2016 - 12:20 PM

 

awesome cake, very profesional! :o

how much b.p did you use for lift the stars?

I see that tubes as joined together one after another, which fuse as used? I see it very fast

 

Thx Aspirina :)

Lift 3g classic bp 75/15/10.
Quick match in a tube, inserted into the holes, and through it (visco/quick match) and covered with duct tape.
(sorry for my English)



#10 BlueComet24

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Posted 23 April 2016 - 06:14 PM

Your cake was very nice. Did you use pistons to lift the stars?

 

I'd recommend against using metal mortars that are not buried. If a tube in your cake got clogged, it could produce some nasty shrapnel. Cardboard, fiberglass, and HDPE are safer alternatives.



#11 lloyd

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Posted 23 April 2016 - 06:16 PM

"Your cake was very nice. Did you use pistons to lift the stars?"

----------------

'Looked more like they were lifted with black powder...

 

(hint -- "sabot" <G>)

 

LLoyd


Edited by lloyd, 23 April 2016 - 06:17 PM.

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#12 BlueComet24

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Posted 23 April 2016 - 07:35 PM

A sabot increases the diameter of a projectile to the size of its barrel. I'd think piston would be more appropriate, but whatever you say. :)

#13 lloyd

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Posted 23 April 2016 - 08:09 PM

Blue, that's the case with some sabots -- most commonly for some kinetic (non-explosive) AP rounds.  But, a sabot is not required to surround the projectile in order to qualify as one; they often trail the round.   In fireworks, for some hundreds of years, the traditional term used for your 'piston' in fireworks has been "sabot".

 

Some use the term 'wad', but that is also not correct, unless the thing used IS a wad... that is, slightly larger than the gun i.d., and compressed to fit into the tube.  A sabot is smaller than the i.d. and is often used to cushion a delicate shell against lift force, or to help uniformly lift all stars in a mine to the same height.  Those in mines are often perforated to allow lift gasses to mix in with the stars.

 

I'm not a schoolmarm.  You can use the term you wish to use.

 

Lloyd


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#14 PiroArt86

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Posted 24 April 2016 - 02:34 AM

Your cake was very nice. Did you use pistons to lift the stars?

 

I'd recommend against using metal mortars that are not buried. If a tube in your cake got clogged, it could produce some nasty shrapnel. Cardboard, fiberglass, and HDPE are safer alternatives.

I always use a piston with a hole to lift the stars.

About the material I agree, I know that metal is not the best in pyrotechnics, thanks :)



#15 braddsn

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Posted 25 April 2016 - 01:04 AM

Piro, the rocket was impressive! I love it!


Always out of Parlon. 

#16 PiroArt86

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Posted 27 April 2016 - 03:12 PM

1lb bp rocket(3" inch shell) beautiful D1 glitter effect :)

photo:

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7a9b3e27115dt.jpg

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a1068115ce7ct.jpg

video:


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#17 BlueComet24

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Posted 27 April 2016 - 03:29 PM

Wow, very nice!



#18 Sparx88

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Posted 29 April 2016 - 03:22 PM

That's what I'm talking about right there. That's a nice long hanging effect. Love it. What are the compositions?
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#19 PiroArt86

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Posted 30 April 2016 - 12:26 PM

That's what I'm talking about right there. That's a nice long hanging effect. Love it. What are the compositions?

Thx Sparx88!

Chemical composition(D1 glitter stars mod):

KNo3 - 53%
S - 18%
C(airfloat) - 11%
Al(150 mesh) - 7%
NaHCo3 - 7%
Dextrin - 4%
Boric asid - 1%


Edited by PiroArt86, 30 April 2016 - 12:27 PM.


#20 lloyd

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Posted 30 April 2016 - 12:36 PM

Yup... the gold glitters are among my favorites, too; and I especially like the sodium bicarbonate as a delay agent.

 

LLoyd


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