asdercks Posted June 15, 2013 Posted June 15, 2013 Hi guys i hope you can give me some advice I am going to make a 25 shots cake, the mortar tubes I am using are 1" id x 6" long, for the inserts I have two different size of tubes,1st. 3/4" x 2 1/8" x 3/32" wall, 2nd. is pretty much the same as the first one but the tube walls are 1/16" I will plug one side of tube with clay and the other one with thick cardboard disk glued with wood glue for burst i will use slow kno3 flash...so my question is which size of tube do you recomend i use for the inserts heavy wall o thin one, i know i can try both to see wich one produce better bombettes, but I live in the city so I don't have the freedom( empty space) to be test shootng bombettes
LTUPyro Posted June 15, 2013 Posted June 15, 2013 Personally I would recommend to use same thick wall as plugs, because if your tube walls are very strong and plug is not, weak burst charge wont break tube and plug will just come off and you wont get symmetrical burst. Other things is, if you are going to use clay with weak tube you can get some tube cracks (I'm not saying your thin walled tubes is weak, just saying what can happen). But if your burst charge is powerfull enough to brake whole tube, use thick walled tubes and you will have louder and bigger break. Anyways best thing is to try and compare. Good luck on that cake!
asdercks Posted June 15, 2013 Author Posted June 15, 2013 Personally I would recommend to use same thick wall as plugs, because if your tube walls are very strong and plug is not, weak burst charge wont break tube and plug will just come off and you wont get symmetrical burst. Other things is, if you are going to use clay with weak tube you can get some tube cracks (I'm not saying your thin walled tubes is weak, just saying what can happen). But if your burst charge is powerfull enough to brake whole tube, use thick walled tubes and you will have louder and bigger break. Anyways best thing is to try and compare. Good luck on that cake!Hey thanks for your reply, I think I will be using the thick tubes,you're right stronger casing with strong burst will result on a bigger louder break, i had hopes for the thin tubes as they are a little bit cheaper
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