In today’s healthy lifestyle oriented world, blowing smoke rings won’t impress too many people anymore. Unless of course you are [NightHawkInLight] and blow them with a vortex cannon and add lasers for visual effects. Although, his initial motivation was to build a device that could shoot lost frisbees out off the trees in his backyard disc golf course, and as avid enthusiast of shooting things through the air using a propane torch, he opted for a vortex cannon to avoid the risk of injuries shooting a projectile may cause.
With safety in mind from the beginning, [NightHawkInLight] chose to build the cannon in ways that won’t expose him or people following his footsteps to any toxic fumes. The barrel is formed by securing a roll of terrace board and simply pulling it into a cone. A series of PVC pipes and adapters build the combustion chamber that fits the terrace board barrel on its one end, and the propane torch nozzle on its other end. For easier aim and stability, he also adds a tripod mount.
Since air vortices are, well, air, and therefore not visible by themselves, they don’t offer the most visual excitement. [NightHawkInLight] solved this with a fog machine attached to the barrel, and a laser line module, which you can see for yourself in his build video after the break. In a previous vortex cannon project we could also see a more outdoorsy approach to add visibility to it.
11 thoughts on “Blowing Rings With Cannons, Fogs, And Lasers”
Cannons? What has this to do with snooker or billiards? I think you mean a plurality of cannon.
Looks like the hull is made of solid Neutronium. Overloading the impulse engines should be enough to destroy it, but you’re going to have to ram her right down that thing’s throat.
Terrace Board is HDPE, the thickness isn’t listed but it is flexible, sold in 20′ or 40′ rolls of 3″, 4″, or 5″ width.
Nice article, I really like the simple way of creating a large cone. I wonder if I can find something a bit more lightweight that will work.
*makes mental note to hunt around at the hackspace*
To expand on the comment by [John]…
cannons -> cannon
out off the trees -> out of the trees
and as avid enthusiast -> and as an avid enthusiast
on its one end -> on one end
4″ x 40ft @ 8.1 Lbs HDPE edging according to amazon. Or about 3.25oz / foot
4″x50ft x 0.0078″ @ 1.81Lbs aluminum flashing
6″x50ft x 0.011″ @ 2.4Lbs aluminum flashing
All of which are in the $20 – $30 range
A little JB weld or pop rivets and RTV to secure it, crimped edges if you’re a masochist.
You could probably even swing paper mache with some alum and / or waterglass mixed in for fire retardant.
Yikes.. *exclaims in German*
Well cheers, I appreciate the lesson :)
Clever – but did he ever get his frisbee back down?
In one piece?
Lots of useful info to be found in:
US 2013/0145746 A1 – VORTEX CANNON WITH ENHANCED RING VORTEX GENERATION
Are drills and self tapping screws not available where he is?
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