pyrogeorge Posted October 17, 2013 Share Posted October 17, 2013 Hi,Do you know how to put the stars in the hemis to make like this effect? Link to comment Share on other sites More sharing options...
AdmiralDonSnider Posted October 17, 2013 Share Posted October 17, 2013 This seems to be a ring shell (having one ring of stars touching the hemis inside) with some larger comets included in the same plane as the main stars, placed more towards the center of the shell. The rest is filled with burst composition such as coated rice hulls. This is what I would say is the concept. Link to comment Share on other sites More sharing options...
pyrojig Posted October 19, 2013 Share Posted October 19, 2013 Just food for thoughtIt too could be a double petal shell . One inner with the large 1" comets with a 10% + metal content , and the outer petal a color ring both of which are oriented in the same axis . '. I had made a similar effect doing this method. Using a 8in shell with a 5" inner . You can get about 8 x 1in comets in there on a ring, and the 8" would hold many 1/2" color stars to ,make a ring . Link to comment Share on other sites More sharing options...
pyrogeorge Posted October 19, 2013 Author Share Posted October 19, 2013 thanks guys..Has anyone got any photos from the construction of these sell? Link to comment Share on other sites More sharing options...
pyrojig Posted October 20, 2013 Share Posted October 20, 2013 Sadly I do not have a pic. I have had the worst luck with phones and was lost before I had a chance to upload it to my photobucket acct. I would love to share a pic, I know it is worth a thousand words . Link to comment Share on other sites More sharing options...
schroedinger Posted October 20, 2013 Share Posted October 20, 2013 You have the skylighter book pyroprojects? Have a look at page 292, there you find what you are looking for. Link to comment Share on other sites More sharing options...
pyrojig Posted October 20, 2013 Share Posted October 20, 2013 (edited) The critical things to consider when manufacturing a shell of this type is the sizing of the stars ( color stars and the silver streamer stars). If the sizes are off a lot ,then the larger ones will fly out further than the others . Usually the color stars are smaller than the streamer stars. This is where it gets tricky. A double petal shell helps overcome some of this . But still one must balance the break to obtain the proper star orientation in the flower. Edited October 20, 2013 by pyrojig Link to comment Share on other sites More sharing options...
Seymour Posted October 20, 2013 Share Posted October 20, 2013 Not just sizing, but shape counts too. Some good effects can be made with pumped stars, but for perfect symmetry, round stars, perfectly sized as pyrojig is saying, is the way to go. Link to comment Share on other sites More sharing options...
burningRNX Posted October 21, 2013 Share Posted October 21, 2013 (edited) I think that they just put together 2 hemi's both filled with a ring of different stars, no double petalsExample: Edited October 21, 2013 by burningRNX Link to comment Share on other sites More sharing options...
pyrogeorge Posted October 26, 2013 Author Share Posted October 26, 2013 I think that the comets will burn to outer petal not from center. Link to comment Share on other sites More sharing options...
Niladmirari Posted December 14, 2013 Share Posted December 14, 2013 What do you think. Form stars affects the symmetry? Sphere stars - a symmetrical expansion. Cylinder, square stars - not symmetrical expansion ? Link to comment Share on other sites More sharing options...
Mumbles Posted December 14, 2013 Share Posted December 14, 2013 That is generally true. It seems to be most noticable as the stars slow a bit. The odd shaped cut or pumped stars tend to fly more erratically. 1 Link to comment Share on other sites More sharing options...
pyrojig Posted December 15, 2013 Share Posted December 15, 2013 I can second that . In past I had tried to make ring shells with cut squares or pumped and as Mum's said they fly erratically . Round and "sized" stars are the key to symmetrical breaks as well as a good burst. Link to comment Share on other sites More sharing options...
Niladmirari Posted December 18, 2013 Share Posted December 18, 2013 Mumbles, pyrojig thank you! I thought as much  I found: What may be composition? Link to comment Share on other sites More sharing options...
dan999ification Posted December 18, 2013 Share Posted December 18, 2013 I think mgal glitter because of the fizzing.C6 and mgal sounds and looks like this just without the flashes. Dan. Link to comment Share on other sites More sharing options...
Niladmirari Posted December 19, 2013 Share Posted December 19, 2013 Yes. Looks like. Thanks Dan! Very powerful effect. Glitter on steroids Link to comment Share on other sites More sharing options...
BPgorilla Posted December 23, 2013 Share Posted December 23, 2013 (edited) hi everyone, sorry haven't checked in for a while...hope everybody's turkey day was great. can't wait for Christmas. I was having some trouble with some blue stars that I made and I was wondering if anybody could shed some light on the subject? I used T. Shimizu formula 61%pat. Prec. , 12% cop carb., 13% parlon, 9%red gum, & 5% dextrin. its been over 2 weeks drying, and when I put it in the star tester they don't ignite. Why? They only ignite if I hold the flame to them. can somebody give me some feedback on this please? Edited December 23, 2013 by BPgorilla Link to comment Share on other sites More sharing options...
Niladmirari Posted December 23, 2013 Share Posted December 23, 2013 If don't ignite in shell. Needed prime (coating): Pat. Prec. 70% + charcoal 30% + dextrin 5%. Or don't ignite on the ground? Link to comment Share on other sites More sharing options...
Mumbles Posted December 23, 2013 Share Posted December 23, 2013 As Niladmirari said they probably need to be primed. Blue stars are particularly prone to blowing out too for some reason. Link to comment Share on other sites More sharing options...
Niladmirari Posted December 27, 2013 Share Posted December 27, 2013 (edited) Hi. Please tell me what could be the composition:http://www.jorge.com.pl/eng/fajerwerki-profesjonalne-film-87-1010-2.htmlThank you! Edited December 27, 2013 by Niladmirari Link to comment Share on other sites More sharing options...
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