Sparx88 Posted January 29, 2014 Posted January 29, 2014 Ok, I think I get it but here go'es.. This is a pressed comet with a star shaped cavity in one end (large phillips head screwdriver bit welded to the end of ram) which is filled with Vitamin F, then a small stack of 4 paper disc's white glued to seal that over then one wrap of pasted craftpaper with over hang on the sealed end to cut pleats and fold/paste to finish. When lit these will burn like a normal comet/star then pop at the end seperating into 4 small stars. Right?
pyrokid Posted January 29, 2014 Posted January 29, 2014 (edited) Correct. There can be quite a bit of variation between different crossettes in the dimensions and shape of their cavities. Some prefer round cavites, others prefer cruciform or tapered square cavities, etc. One of the more novel hobbiest methods I saw on a Russian forum involved securing triangular pieces of PCB onto a drill bit. Since the drill bit was hexagonal, this gave some very interesting stars. There is also a small pin on the end of the pump, which, when a star is made with that tool, allows fire into the cavity before the star burns too much. This gives slightly more confinement and helps to ensure that the star explodes rather than jets. It isn't critical that there are 4 disks on the end of the star, what is important is that there is adequate confinement. Edited January 29, 2014 by pyrokid 1
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