Wolframore
- Joined Jan 21, 2019
- 2,609
I've figured it out what he's doing with a single strand of 30ga is making his e-match.... this is a poor idea. Copper is not the correct material you want to use Ni-Chrome or resistance wire because you need higher resistance. This is why you can't light them off with 48V let alone 12V. I make my own also for model rocket launches and I aim for 0.5 - 1 Ohm and will fire off 3V... it's almost immediate on 9V.
Using a super light gauge (36-40ga) nichrome wire - doped with blackpowder to increase flame... you would be able to use 12V and much safer conditions.
40ga nichrome at 1/4" would give you about 1 Ohm resistance. It would burn quickly at 12V drawing almost 12A from a car battery and suitable wires.
Definition of squibs: In the North American film industry, the term squib is often used to refer variously to: electric matches and detonators (used as initiators to trigger larger pyrotechnics).
Per NASA: https://ntrs.nasa.gov/search.jsp?R=19620007196
Squibs.- The basic component in any pyrotechnic device is the squib, initiator, or detonator. A squib in its.simplest forms is shown
in figure 2. It consists of two electrical leads which are separated by a plug of insulating material, a small bridge wire or electrical resistance
heater, and a bead of heat-sensitive chemical composition in which the bridge wire is embedded. Application of an electric potential across
the lead wires causes the bridge to heat up, and this in turn causes the chemical composition to react, liberating chemical energy in the form of heat.
Using a super light gauge (36-40ga) nichrome wire - doped with blackpowder to increase flame... you would be able to use 12V and much safer conditions.
40ga nichrome at 1/4" would give you about 1 Ohm resistance. It would burn quickly at 12V drawing almost 12A from a car battery and suitable wires.
Definition of squibs: In the North American film industry, the term squib is often used to refer variously to: electric matches and detonators (used as initiators to trigger larger pyrotechnics).
Per NASA: https://ntrs.nasa.gov/search.jsp?R=19620007196
Squibs.- The basic component in any pyrotechnic device is the squib, initiator, or detonator. A squib in its.simplest forms is shown
in figure 2. It consists of two electrical leads which are separated by a plug of insulating material, a small bridge wire or electrical resistance
heater, and a bead of heat-sensitive chemical composition in which the bridge wire is embedded. Application of an electric potential across
the lead wires causes the bridge to heat up, and this in turn causes the chemical composition to react, liberating chemical energy in the form of heat.
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