How are the consumer Polumnas (Polomas) folded

[alexpyro101]

I was wondering how some of the consumer grade polumnas are folded. I know how to fold regular polumnas (right triangles) but lately over the years I have been seeing equilateral triangle shaped polumnas in the fireworks stands. I have yet to buy some myself because they are overpriced (they wanted like 2$ each), and it's easy to make ones that are of much better quality.

 

I'm wondering if they are folding them, or if they are just pasting cardboard triangles together. I have also seen fake ones where they just fold a triangle around a small firecracker.

 

http://i.imgur.com/c0MVNwf.jpg

[Peret]

Easy enough to check out yourself with a strip of paper. If you start with a 60 degree fold, every other fold is automatically 60 degrees and you get an equilateral triangle.

[dave321]

what is the composition? B.P?

[Blackthumb]

http://krimzonpyro.com.ve.carpathiahost.net/rat/devices/polumna.html

[MrB]

I think we are missing the point. Isn't he asking how commercial polumnas (for the consumer) are made?

I suspect they might not have an army of workers folding these by hand, so, how do they make them?

B!

[nater]

The only ones I have seen looked handmade, but were from South America.

 

No, they are not filled with BP.

[Mumbles]

There are a lot of patterns that will make an equilateral triangle. Like Peret said, if you start with a 60 degree angle, you end up with all 60 degree angles. It's could be very similar to making a normal polumna.

 

http://www.mathnstuff.com/papers/tetra/hold/hexa2.gif

[alexpyro101]

There are a lot of patterns that will make an equilateral triangle. Like Peret said, if you start with a 60 degree angle, you end up with all 60 degree angles. It's could be very similar to making a normal polumna.

 

http://www.mathnstuff.com/papers/tetra/hold/hexa2.gif

This seems to me seems like the most likely answer as to how or why they are folded at 60 degrees. Thanks for answering my question and sorry for the late response.