Instructables
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What does a used can of soup, old PC speaker, and propane equal ? A "Pyro Jam Can" of course! Inspired by a Rubens tube that I built the "Pyro Jam Can" is flame spitting candle that likes to jam to the rhythm of the beat. Finished eating your soup and ready get building? Lets light this can so you can jam out!

!!!!!!!!!WORD OF CAUTION!!!!!!!!!!!
YOU BUILD THIS AT YOUR OWN RISK. BE SAFE. KEEP A FIRE EXTINGUISHER NEAR BY. HAVE A FRIEND NEAR BY TO ASSIST IF THINGS GET OUT OF CONTROL. ONLY USE IN A WELL VENTILATED AREA WITH NOTHING CLOSE BY.
BE SURE TO TRIPLE CHECK FOR ANY LEAKS. NOT CHECKING FOR LEAKS COULD CAUSE A GAS POCKET THAT WILL IGNITE! TURN GAS OFF IMMEDIATELY IF FLAME BURNS OUT AND WAIT FOR ROOM TO CLEAR OUT BEFORE REIGNITING.

OK, now on to the build ;-)

 
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Step 1: Materials

Picture of Materials
Parts List:
  • PC Speaker with built in amplifier
  • Scrap wood, I used 3/4" plywood cut down to 5" squares x 2
  • Propane Tank
  • Propane regular hose
  • 3/8" Plastic tubing
  • 3/8" OD PTC x 3/8" flare adapter (used to attach to regulator hose)
  • 3/8" x 1/4" Hose barb
  • 3/8" male NPT x to 3/8" OD PTC
  • Misc Bolts
  • Wood Glue
  • Helium rated balloon
  • Primer and paint
  • All weather caulk/silicone.

Step 2: Building the speaker box

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Reference the pictures for clarification.
  1. Cut your plywood to be about 1/2" or so bigger then the diameter of the size can your using. Cut two pieces.
  2. Cut out the center equal to a little more then the diameter of the can.
  3. Cut the other pieces center out just a little smaller then the diameter of the speaker your using.
  4. Drill a hole in each corner of the speaker piece so we can attach stand offs so the speaker doesn't bottom out.
  5. Attach the bolts and glue the can piece on top of the speaker piece.
  6. Sand for a smooth finish.
  7. Tape off bolts using masking tape.
  8. Primer with latex primer.
  9. Spray paint red or whatever color you want.
alarimer1 year ago
it would be cool if you could get it to use blue or green flames
Venemot2 years ago
Can i use methane(natural gas) from my home gas outlet?
Mavamaarten2 years ago
Great instructable. What would happen if you put a subwoofer instead? The membrane will shake a whole lot more, won't that blow out the flame?
Kaiven2 years ago
That's awesome. I have propane, cans, and spare speakers, so I could definitely make this. My only problem is that my speakers are just cones... can I get this to work without any amps?
pbecker83 (author)  Kaiven2 years ago
Thanks! Sorry for the delayed response. Don't think your going to get much response with an amp. You can find one in an old PC speaker or build one like this http://www.reprise.com/host/circuits/lm386.asp using available parts from Radio Shack.

Be careful,
 P
Ha, I think I'll just find some old speakers :P Thanks for the schematic though.
pbecker83 (author)  Kaiven2 years ago
Typo "Don't think your going to get much response "without" an amp. But I think you know what I meant. ;-)
This is really cool! I will have to have a go at it! Nice instructions, too. Thanks!
pbecker83 (author)  stringstretcher2 years ago
Thanks! Its a relatively simple build. Everything just screws and drops in place. Id love to see some video and pictures when you build it.