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Posted

I finally had some gerb tools made up and so spent the spring playing around with them with the idea of making a simple wheel. Inspired by Thomas Kentish "The Pyrotechnist's Treasury" I made my first one using iron filings. There are comments around that the effect depends on the composition of the steel filings. I just had some random "iron filings" but I was lucky that it produces lovely golden branching sparks that float to the ground. Following Kentish, I started with:

Meal D 0.80

Iron filings 0.20

This makes a fountain that's too powerful for me. I am viewing at 5-8m so sparks have to be toned down otherwise they're blinding. After a bit of experimenting adding charcoal to slow the burn, I got to:

Meal D 0.75

C (airfioat) 0.10

Iron Filings 0.15

Rammed two gerbs with 12g of composition each. Half inch ID tubes choked to 8mm. Set up with some quickmatch

image.thumb.jpeg.9215b00072ee8c1d48ec71834ad452a4.jpeg

Here's it is. It starts with a shout of surprise from teenage son.

 

 

 

 

Posted

Very cool! Now make one that reverses 😉

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