ChloRure Posted December 30, 2011 Posted December 30, 2011 I just got some paper shell (1.75, 3 and 4 inchs) The only one I tried so far is the 1.75... single hole for fuse (using 2.2mm visco with masking tape to fit the hole...) timing was perfect. The 4 inchs come with no hole at all, so I guess I need to drill the hole myself the size I want. I will use 1/4 time fuse for those one, so ill drill 1/4 hole and hot glue around the fuse. Problem come from the 3 inchs... it have 2 holes drilled with 3/4 distance from each other. Can I block 1 hole and use 1/4 time fuse in the other? Do I need to hotglue the hole or just paste gummed tape over it ? Thanks!
Xtreme Pyro Posted December 30, 2011 Posted December 30, 2011 If you don't want to use both fuse holes, put a bit of hot melt glue into one of them, then paste over it with gummed tape. Personally I like to use two time fuses for shells bigger then 2.5". - XP
dan999ification Posted December 30, 2011 Posted December 30, 2011 if you have 1/4" time fuse drill the hole 5mm for a tight fit, if you plug one hole plug it well inside and out, ive never had a fail with single time fuse only visco but it wont hurt to use two and it will be easier to see it rise if you dont put a tail on. dan.
Potassiumchlorate Posted December 31, 2011 Posted December 31, 2011 I double fuse everything from and including 3". Nothing makes you so pissed as a shell wasted because of bad fusing.
ChloRure Posted January 2, 2012 Author Posted January 2, 2012 I double fuse everything from and including 3". Nothing makes you so pissed as a shell wasted because of bad fusing. Yeah finaly I think I will double fuse those 3"... here in Canada it's a little hard to get fuse and I wanted to spare most of what I have but I guess ill try to get more
Mumbles Posted January 2, 2012 Posted January 2, 2012 Despite not having to go in the air to get to Canada, it's still international shipping which raises additional complications that most suppliers don't like to deal with. Some people have it shipped to a US address and pick it up later. I don't know all the legal issues or intricacies involved in that, but there seem to be less hassles that way.
ChloRure Posted January 3, 2012 Author Posted January 3, 2012 Despite not having to go in the air to get to Canada, it's still international shipping which raises additional complications that most suppliers don't like to deal with. Some people have it shipped to a US address and pick it up later. I don't know all the legal issues or intricacies involved in that, but there seem to be less hassles that way. Yep, 90% of USA sellers won't ship fuse to Canada... I don't think it's illegal to do but I guess they don't want to do it. I found a place but price are way higher then what you can get in USA. If someone want to buy some and ship them to me I would pay profit to him btw
usapyro Posted January 9, 2012 Posted January 9, 2012 I always just glue the other hole over. I have honestly never had time fuse fail on me in any way... I prime it by dipping one end in 10% NC Lacquer then dipping it in meal lately. I use to paint the time fuse with a mix of Binder/BP and then dipped in granulated BP... But that stuff was annoying and besides separating out over time it would take a while to dry.
mxman123 Posted February 5, 2012 Posted February 5, 2012 I always just glue the other hole over. I have honestly never had time fuse fail on me in any way... I prime it by dipping one end in 10% NC Lacquer then dipping it in meal lately. I use to paint the time fuse with a mix of Binder/BP and then dipped in granulated BP... But that stuff was annoying and besides separating out over time it would take a while to dry. You don't cross-match?
DanielC Posted February 6, 2012 Posted February 6, 2012 I always crossmatch both ends and have never had a time fuse fail...yet. "knock on wood" I have had visco fuse fail several times, very aggravating and wasteful.
hst45 Posted February 7, 2012 Posted February 7, 2012 I've been using visco wrapped in electrical tape, single fused. I diagonally cut the "take fire" end, dip it in NC lacquor and coat this in BP meal. I've NEVER had a failure (damned, just jinxed myself). I only do small-ish stuff; 3" max, I just came into a bit of good quality time fuse (tip-of-the-hat to dag), so I plan on working up some timed insert shells soon, and we'll see how that goes. Video to follow if all works out: if not, then when you don't see a posting, you'll know it's me....
dagabu Posted February 7, 2012 Posted February 7, 2012 I always crossmatch both ends and have never had a time fuse fail...yet. "knock on wood" I have had visco fuse fail several times, very aggravating and wasteful. I had an interesting experience this winter. I used the new-fangled red and white time fuse, cross matched it and used it as the time fuse for the bottom shot, stuffed it into the shell and when the shell went off, the end of the time fuse shredded! All the rest went off as they were supposed to. Never had that happen with the cheapo-white stuff. just sayin... -dag
warthog Posted February 7, 2012 Posted February 7, 2012 The only shells I have double fused were larger then 6" and ones that I thought the work involved was worth the safety net. That said the shells I have double fused number just one. I don't get much chance to loft really big shells and even 6" shells are rare for me. I have yet to have a shell fail, even with the tan/white Chinese fuse. I know that the shells people make expressly for competitions are generally double fused. It would really be embarrassing to enter a competition and have your shell crater the ground rather than go off. A competition shell also usually involves a fair bit of time spent making the components and assembling them just right. I crossmatch everything. It takes little time and it makes a huge difference with the ignition of both the time fuse on lift and the ignition of the shell at apogee. I began crossmatching by splitting the fuse with a razor, placing the blackmatch into the split then tying the end closed with a bit of hemp twine and a clove hitch. I was given a nice fuse punch by Bill Parker of Pyropunch Tools and found this to be a lot easier, faster and easier to get the timing just right so this is now my preferred method.
dagabu Posted February 7, 2012 Posted February 7, 2012 I was given a nice fuse punch by Bill Parker of Pyropunch Tools and found this to be a lot easier, faster and easier to get the timing just right so this is now my preferred method. Thanks for mentioning this Warthog, I bought one from Bill and mounted it into a 1 ton arbor press. Works great! If you do have a problem with it, Bill is a first class guy and will send you a replacement before you even ask! -dag
warthog Posted February 7, 2012 Posted February 7, 2012 (edited) I need to get the arbor press set up too, I have seen those and it looks a lot easier than smacking it with a rawhide hammer like I am doing now. You're right about Bill too, he is first class all the way and I hope I get to meet him finally in August. Edited February 7, 2012 by warthog
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