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Composition for this type of fountain

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#1 bengal_pyro

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Posted 29 October 2016 - 10:42 PM

Can anybody suggest the composition(s) for this type of fountain? The bright flashes come from Magnalium I guess.




Thanks


Edited by bengal_pyro, 29 October 2016 - 10:43 PM.


#2 Rob.L.

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Posted 30 October 2016 - 04:32 PM

Hello Bengal pyro,

 

My guess is it is a crackle fountain although the sound isn't great. If so I think Ferro-titanium is used for that,

Try searching 'crackle fountain' or 'crackle mix' on the forum.

 

Loads of compositions out there.



#3 Rob.L.

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Posted 30 October 2016 - 06:22 PM

 
 

 

Simple

Hi Ken,

 

Just wondering if you could elaborate on "Simple"!

 

I know you have some knowledge on this.

 

Thanks.



#4 megabusa

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Posted 31 October 2016 - 10:57 AM

Dragons eggs are used for the crackle.



#5 dave

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Posted 31 October 2016 - 04:23 PM

i have to say I didn't think that looked like classic dragons eggs,

I thought it looked more like a "spritzel" very drossy burn type fountain

 

dragons eggs tend to explode surely, and there was no real cracks present in the video

 maybe a slight strobe effect was present ?


Edited by dave, 31 October 2016 - 04:24 PM.


#6 Mortartube

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Posted 31 October 2016 - 05:07 PM

I think it's fairly large mesh MgAl. I have made a similar effect with about 60 mesh.


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#7 bengal_pyro

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Posted 31 October 2016 - 06:47 PM

Crackling stars have a distinctive burst pattern and this fountain doesn't contain Dragon eggs   IMHO.

For example a crackling fountain:




I'm just wondering what metal was used in this fountain,  Magnalium(large mesh) as mentioned by mortartube or Ferro-Titanium?

Thanks 


Edited by bengal_pyro, 31 October 2016 - 07:30 PM.


#8 samboradford

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Posted 31 October 2016 - 09:38 PM

It's simple, as Ken said... It's Dragon's eggs microstars.  Just more towards the "time-rain" end of the spectrum.



#9 RichardH08

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Posted 31 October 2016 - 11:55 PM

I agree with bengal_pyro that these don't look or sound like any form of crackle that I've seen.

 

If I were going to try and reproduce this effect I'd start with microstars made with a bright white composition, such as one based on barium nitrate and fine magnalium. Maybe adding some sulphur - making it more like one of the early white strobe compositions - might be the way to go.



#10 samboradford

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Posted 01 November 2016 - 07:20 PM

There are some posts over on APC which pretty much show this effect - they are a version of crackle.  Search for Time Rain over there.

 

http://www.amateurpy...?hl=+time +rain

 

you'd probably get close with a variation on Fuch's Pop Glitter also.


Edited by samboradford, 01 November 2016 - 08:22 PM.


#11 Arthur Brown

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Posted 01 November 2016 - 10:49 PM

It's a fountain with some kind of sparkle, Whether it's time rain based or granular magnalium based ... Maybe it's dependent on what the maker had available.


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