I was contracted by some friends to do a fireworks display for their wedding (seems as though my penchant for pyromania is well known in these parts). It took me about 6 months (not from lack of skill..but mostly lack of initiative and cash) to create the "Crapflinger box of doom" V1.0. It used momentary SPST push button switches, a box from a projector that i got from work, schedule 80 PVC, and a lot of luck. It went off with only a few hitches so i decided to rebuild for the fourth of July next year.
The rebuilt version will be known "Crapflinger Box of Doom" V2.0 and as of yet has not been physically completed. It has however been logically completed (even wrote some craptacular software for the thing). Since the thing isn't built yet...I'm very short on photos...but once the contraption is completed i will update this instructable to reflect the difference between planned execution and actual product.
Step 1: Materials
2 - Serial Isolated I/O Module (You can get these pre-assembled or in kit form from Here)
1 - Upgrade kit to join the two I/O modules together (i got mine from the same place as the module)
2 inch Schedule 80 PVC pipe cut into 6 - 8 inch lengths (I'll be using 24 8 inch pieces so that's about 16 feet of pipe total)
2 inch PVC end caps (I'm going to try to use screw type caps so that i can load the thing easier...i used rounded end caps on the first project..but when fired...the PVC pipe actually flies out of the device...which isn't very controllable..i think with the screw caps I'll be able to eliminate this)
Bolts - 2 per firework to be launched (I'm firing a total of 26 devices so I'll need 52)
Wing Nuts - one per bolt used (I'll need 52)
Screws - Lots OF SCREWS...
Wire - preferably 2 different colors for easy setup (i use 22 gauge solid core for my positive and i think somewhere around 18 gauge stranded for the negative...why? because that's what I've got)
Plywood - to make a raised base inside your box
Fireworks - this is up to you..but I'm using 2 "dirty dozen" mortar sets and 2 "Texas rattlesnakes"
Model rocket igniters - one per firework (i used Estes igniters on V1.0 but I'll be using the Aerotech first fire juniors for V2.0 as they are more reliable and easier to insert into the fireworks themselves)
Note: please don't make fun of the overcomplexity that's going to show up in this project...i like over complex...i know i can do things with less steps...but why would i?