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Cylindrical Shells


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#1246 pyrotrev

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Posted 14 July 2007 - 05:45 PM

I'm really impressed with everybody's pasting ..... I'm sure you'd get a job in most Chinese factories!
Trying to do something very beautiful but very dangerous very safely....

#1247 pudi.dk

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Posted 14 July 2007 - 05:58 PM

I'm going to the summerhouse in a week, I'll fire it there (and record it of course ;) )
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#1248 sasman

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Posted 15 July 2007 - 12:31 PM

eh..

Edited by sasman, 22 July 2007 - 09:35 PM.


#1249 maxman

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Posted 15 July 2007 - 01:05 PM

Excellent work as ever Sasman! Did you use a booster as well in those shells?

I've decided to hang on with my whistle booster as I'm convinced its not fast enough! Passfire refers to whistle as second only to flash and nothing about needing to be confined like KP. Screened some benzoate and it wont pass a 120 mesh so I think it needs milling. I,ve just ordered some more .570 lead balls to use for milling non bp oxidisers and fuels so I'll mill the perc and benzoate (separately) and see what happens before I use it in a shell.

Just off to prime some emerald greens and Davies white.

#1250 Pretty green flames

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Posted 15 July 2007 - 01:36 PM

Very cool shells sasman. Keep up the good work.

Cheers

PS: You think you could do anything about that light post, it's very distubrnig when trying to enjoy some nice shells :ph34r:

#1251 maxman

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Posted 15 July 2007 - 01:39 PM

I'm sure it's nothing a bit of sasmans flash can't fix :lol:

#1252 italteen3

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Posted 15 July 2007 - 09:58 PM

I'm sure it's nothing a bit of sasmans flash can't fix :lol:


LOL! There are more sensible ways to get the light out. Make some super bright white-mag comets and if it is a light that has a light sensor fire one or 2 off next to the light and it will go out ;). Superb work as usual Sasman!!!

#1253 paul

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Posted 17 July 2007 - 07:10 AM

Nice shells there, sasman!

Anyway, I just got the impression (especially on the third shell!) that the break ist just too massive! Not a nice and "full" round pattern anymore, just stars getting the sh*t blown out by a massive break charge...

Liked shell 2 most :P

P.S: Like the *bling* *bling* black powder as well!

Edited by paul, 17 July 2007 - 07:11 AM.

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#1254 paul

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Posted 20 July 2007 - 09:42 PM

Video Update!

Today we shot the 5" described above! Wow, fantastic sound! Later we recognized why the lift was so damn loud. The mortar was halved afterwards :)
Anyway, the lift was okay, could´ve been much higher. Next time we´ll use the 6" fibre-tube again...

The camera´s focus took too long, so the effect (two halves, one silver streamer, one charcoal streamer) can only hardly be seen ):

Judge yourselve!

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#1255 sasman

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Posted 22 July 2007 - 05:42 PM

Nice work paul!! ..I love charcoal stars...pity you couldnt see the fine detail...because of the focus ...

#1256 pudi.dk

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Posted 27 July 2007 - 10:47 PM

Posted Image

Details:

Stars: ~70 g TigerTail, 10 mm pumped
Pasting: Pasted with 10 layers of 30 lbs. kraft using 3-strip method
Ignition: Fired electrically (by my brother) with a 3 second spolette
Burst: BP on rice hulls (4:1)
Lift: 15.3 g Pulverone

Click here to watch the Video !
Videos visit: http://www.pudi.dk

#1257 maxman

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Posted 28 July 2007 - 07:35 AM

Pudi.dk, that was a good lift for 15.3g. I need to use 25g for a 3" or it would be underlifted. The power of the break seemed quite good due to the pasting I guess but I've not seen a break like that before. The stars seemed to go in whatever direction they felt like! strange but nice! Was it a plastic shell pasted or paper?

#1258 pudi.dk

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Posted 28 July 2007 - 08:33 AM

What do your 3" normally weight? I think the total weight of the shell (inclusive everything) came up to about 150 g.
Yeah the break was a bit strange, my TT tends to behave that way, maybe it's the active charcoal I use that make it floating in air, instead of falling?
I used paper hemispheres.
Videos visit: http://www.pudi.dk

#1259 maxman

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Posted 28 July 2007 - 08:57 AM

My 3" are usually 150 to 180g + lift and plastic

#1260 pudi.dk

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Posted 29 July 2007 - 12:41 AM

If anyone are interested, I made a tutorial:
http://www.pyroguide...santhemum_shell
It took quite a bit of time to complete...
Videos visit: http://www.pudi.dk




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