nothing fancy but I dothis was a early prototype , basically a powder version vs cooking it also I was making the fuses out of yarn they were a little tricky & potassium nitrate is like a salt so absorbs moisture really easy just left on the bench will degrade them quick ...black powder fuse is much better , anyway experimenting with different ways, work or fail was good fun
https://www.youtube.com/watch?v=J-_OgxrNoqc
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