Adding delays between fireworks

Discussion in 'Fusing Guides, Video And Tutorials' started by Illusion Fireworks, Oct 20, 2011.

  1. Illusion Fireworks

    Illusion Fireworks Pro Firer/Crew

    This came up in another part of the forum:

    In this guide i'll show you how time make time accurate delays and connect them between fireworks:

    To do this we will be using Time Fuse see here:

    http://www.ukfr.com/fireworks-forum/fusing-fireworks/25825-fuse-types-chinese-time-fuse.html

    First it is important to measure your delays, time fuse burns at 3 seconds per inch, so to create a 30s delay you will need to cut 10 inches of time fuse, to do this measure the time fuse with a ruler and mark off the desired length:

    IMG_0511.JPG

    You MUST cut the time fuse at a steep angle, this ensures maximium surface area for ignition, use suitable scissors:

    IMG_0512.JPG

    Next insert the time fuse into the side of a suitable length of quickmatch leaving a 50mm length of exhaust (without this the pressure will force the time fuse out without ignition), ensure the powder core makes contact with the match strands:

    IMG_0515.JPG

    Tape securely using electrical tape and cover the exhaust end to protect from cross ignition:

    IMG_0516.JPG

    For this guide I am simulating the ignition of 2 fans of candles, for the purposes of this demo the candles are dummies, this is only to show the fusing in action.

    IMG_0517.JPG

    The tail exhaust of the candle fans we made in the other guide now serves the purpose of a 'fire transfer' fuse (clever eh?!), the safety fuse for the set of candles to fire after has been removed, it is between these two points we will insert our delay:

    IMG_0518.JPG

    Bare the match from the 'in' end of your pre-made delay and insert into the exhaust of the first set of candles, tape this securely:

    IMG_0519.JPG
    IMG_0521.JPG

    Insert then end of the time fuse about an inch into the ignition point of the second set of candles (or firework if your using another item) and tape securely:

    IMG_0522.JPG

    Using cable ties ensure the delay is secure:

    IMG_0523.JPG


    The fusing in action:

    Note these are dummy candles



    You can repeat this as many times as you like using cakes / mines or anything you fancy, get creative!








     
  2. UGE

    UGE

    Can this be done with the Fast Pink aswell?
     
  3. Illusion Fireworks

    Illusion Fireworks Pro Firer/Crew

    Yes, do you want to see how to join fast pink to time fuse reliably?
     
    K9Girl likes this.
  4. UGE

    UGE

    please mate
     
  5. Charleso

    Charleso Supports UKFR

    Nice guide, only slightly disappointed there was not a quick "ta daaaaaa!" on the end of the video soundtrack ;)
     
  6. Illusion Fireworks

    Illusion Fireworks Pro Firer/Crew

    Maybe next time :)
     
  7. swazzle

    swazzle UKFR Legend

    Well done karl , wish i knew this info for previous displays ive done, would have saved a lot of hassle
     
  8. DannyB

    DannyB Pro Firer/Crew

    A word of caution on delays, and I may be stating the obvious, but I think it's worth stating. There is a potential issue that if something fails and causes something else to move or point the wrong direction then normally you wouldn't go and fire the next piece, however if that's already got a delay burning going into it then things could go from bad to worse.

    Not saying don't do it, just asking that you all think about what could go wrong and how you are going to fix it if it does.

    Danny
     
    phishphood likes this.
  9. Damp Squib

    Damp Squib Supports UKFR

    Brilliant - look forward to the pink version. Am I right that the actual delay in the vid was less than 30 secs?
     
  10. Illusion Fireworks

    Illusion Fireworks Pro Firer/Crew

    It was 26 seconds I used the offcut accidently!
     
  11. Is it ok to use tin foil as weather proofing on all cakes, candles etc?

    Would you for instance cover the whole top surface of a large 500 shot cake?
     
  12. Andy_P

    Andy_P Pro Firer/Crew

    Yes, but it will make a hell of a mess.
    Why not use clingfilm or thin white bin-liners?
     
  13. ambientskies

    ambientskies Pro Firer/Crew Supports UKFR

    Tin foil will help stop those cross ignitions, but not so good on waterproof, make time & do both :D
     
  14. Venger

    Venger Pro Firer/Crew

    Definitely use a clear refuse sack/bag (personally I hate using clingfilm) and if cross ignition is a worry, use a sheet of tin foil over the top of the cake, this can easily be removed before firing and recycled afterwards.
     
  15. Illusion Fireworks

    Illusion Fireworks Pro Firer/Crew

    I'll put together a waterproofing guide next week
     
  16. K9Girl

    K9Girl Batteries not included Supports UKFR

    How does this translate to cakes? Ie how do you use delay fuse between cakes?
     
  17. Winjas73

    Winjas73 Pro Firer/Crew

    You can't really with Cat3 cakes, if you mean "follow on"? With Cat4 many cakes have a 2nd fuse or chain fuse.

    You could technically join visco from one ignition to 2nd cake, but easier to just have 2nd cake on next cue..
     
  18. K9Girl

    K9Girl Batteries not included Supports UKFR

    Thought so but wanted to check, cheers @Winjas73 :)