Bad Timing

I didn't have much chance to make this work, but the final picture, even though it's not a good high speed photo, looks neat.

 

The object is a glass candlestick holder from a garage sale. About 2x2x6 inches.

 

I put the fire cracker behind one side, which I painted black to block out the light.

 

Then I fired the cracker.

 

I hoped would catch the glass cracking, but it was too late. I think that I may have more delay than I hoped in my simple trigger.

 

This may force me to actually measure it.

 

The spray of light and the cracked glass still look cool.

 

Cheers.

 

I measured the delay and its about 12usec, not enough to account for the timing miss. Although I have no real idea when the actual trigger was, the cracks should have taken about 35usec to cross half the glass.

 

 

Done