Can someone help me with this circuit?
I'm working on a fireworks ignitor based off of Bill Gurstelle's design in his book Absinthe and Flamethrowers, and I'm having some trouble. Instead of two switches, mine has three switches. Like Bill's design, it runs off of eight AA batteries. One end of the battery pack goes to a toggle switch and a keylock switch, and the other goes to a pushbutton. They both end at a bolt. I have two long wires with alligator clips on both ends. Each clip clips to the bolt, then to a piece of nichrome wire which is wrapped around a fuse. In theory, when all of the switches are flipped, the nichrome wire lights the fuse. But this isn't happening. I've tested all of the switches, and they all work. The bolts and the nuts holding them in place both conduct electricity, but no power is arriving at the bolts. All of the components were purchased from Electronic Goldmine, except for the battery pack, which I bought at Radioshack. The ignitor is housed in a wooden (and therefore nonconductive) box. What's wrong? (Attached is an awful drawing/collage I did of the circuit. If you need a picture of the machine itself, I can take a picture.)