• trouble with homemade fuses for homemade smoke bomb

    From JBI@21:1/5 to All on Thu May 10 22:22:44 2018
    Hi,

    I made several smoke bombs using a recipe similar to this one:

    https://www.artofmanliness.com/articles/make-diy-smoke-bomb/

    However, I added both baking soda and crayons thinking I would get color
    with the crayons but did not. However, compared to the standard recipe
    without the crayons/ baking soda, I think I like this one better because
    it burns slower and smokes more BUT it is hard to light which brings me
    to my question.

    For fuses, the simplest thing I've tried and works well are sparklers.
    I cut about an inch off of a standard sparkler and place this into the
    smoke bomb paste while it's still warm. Works ok, but cutting the
    sparkler causes about half of it to break away each time. I'd like to
    come up with an actual fuse if I could.

    I tried making a fuse using the KNO3/ sugar recipe and some cotton
    string, but it won't burn well and keeps fizzling out. Granted I made
    it with a thin, almost kite string thickness so maybe it was too thin to
    work well. I've since obtained some #4 cotton yarn (the thickest I
    could find) and might repeat the experiment again, but I have a couple
    of questions:

    1) Would the thicker cotton yarn burn better than the kite sting?
    2) What is the long term reliability of these kinds of fuses if in
    storage (for example, I may use a smoke bomb next week and then not
    another for a year... would the KNO3-sugar fuse still be in good enough
    shape)?
    3) I tried breaking up sparkler material and then spreading it onto a toothpick that was first dipped in hot glue. It stuck well, but
    performance was poor. Any better suggestion for repurposing sparkler
    material into a working fuse?

    Thanks.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From JBI@21:1/5 to JBI on Tue Jun 26 10:54:15 2018
    On 05/10/2018 10:22 PM, JBI wrote:


    2)  What is the long term reliability of these kinds of fuses if in
    storage (for example, I may use a smoke bomb next week and then not
    another for a year... would the KNO3-sugar fuse still be in good enough shape)?

    To answer my own question for this, the long term reliability sucks!
    For some unexplained reason, one batch of these have melted on their own
    after a month, the other hasn't. Now I can't trust whether or not
    they'll keep.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)