pyroguy1960 Posted September 17, 2010 Posted September 17, 2010 I've ordered a few batches of paper shell hemis from a few different places online, I'm used to them have 1 fuse hole right in the center or none at all so I can make my own. A batch I got in this week has two off-set holes in one hemi. I use the cross-match, passfiretube, 1/4 time fuse method to fuse my shells. This is kinda annoying to have two holes, what do I do, plug them both up with something and punch one in the middle where I like it? I know I'm missing something here and there is probably a different way to fuse them. Any insight? Thanks
KruseMissile Posted September 17, 2010 Posted September 17, 2010 2 fuses = twice the reliability. I guess you could plug the holes into a sandwich. Paper(one side of the hole), hot glue(inside the hole), paper(other side of the hole). Done
Algenco Posted September 17, 2010 Posted September 17, 2010 The Chinese like to use 2 time fuses.I don't like them either, I block them off and drill/punch a new hole in the center
Ralph Posted September 17, 2010 Posted September 17, 2010 (edited) for "larger" shells people like to have the added security of double fusing it reduces the chance of failure greatly you can just put a piece of tape over one hole than when you paste it it will essentially disappear EDIT : started posting 15 min ago(and got distracted) didnt realise 2 other people had replied in this time Edited September 17, 2010 by Ralph
Ventsi Posted September 17, 2010 Posted September 17, 2010 -________- http://www.amateurpyro.com/forums/topic/4948-hemi-shell-construction/
pyroguy1960 Posted September 17, 2010 Author Posted September 17, 2010 Understood, that's what I thought...I'll just block up the holes and put the fuse where I want it then, I've never had a problem using just one time fuse, although I've only shot about 60 homemade shells lifetime so far, kinda a newb as you may have guessed.
50AE Posted September 17, 2010 Posted September 17, 2010 (edited) I always drill two fuse holes for my ball shells. I make my cylinders single fused though, because they are top fused. Never had a failure. Edited September 17, 2010 by 50AE
Arthur Posted September 17, 2010 Posted September 17, 2010 The professional reliability issue with a pro shell having a single fuse and a fuse failure so falling back to the ground is why shells over 3" usually have two fuses. Putting two fuses in, isn't really much work or material usage. If you want to use only one fuse then just ignore the holes and drill your own. You should be going to paste over the shell to cover the holes anyway.
Recommended Posts