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Bull Roarers (Read 6026 times)
Lycurgus
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Bull Roarers
Mar 1st, 2010 at 2:41pm
 
I know they are not weapons but....

I made one this weekend and although it works, it is not as loud as I expected.
I think I have the shape about right (Elipticalish) so I think it could be the end-on profile whch is wrong.

Has anyone ever made one?
Any ideas what I am doing wrong?

Thanks in advance.
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You only need two tools in life - wd-40 and duct tape. If it doesn't move and should, use the wd-40. If it shouldn't move and does, use the duct tape.&&&&Remember - You are unique.............just like everybody else.
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Bikewer
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Re: Bull Roarers
Reply #1 - Mar 1st, 2010 at 2:49pm
 
When I was a kid, I had a book called "Where did you go?...."Out."  "What dd you do?"  "Nuthin."
It was about all the little self-made toys and games and such that young lads made for themselves back in the 30s and 40s.   Things like spool tanks and slingshots and....Bullroarers.
I made one, using (as I recall) a piece of wooden Venetian blind slat.  It worked quite well...
That was almost 50 years ago, so I don't remember much of the details!
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Et Cetera
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Re: Bull Roarers
Reply #2 - Mar 1st, 2010 at 4:14pm
 
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Aussie
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Re: Bull Roarers
Reply #3 - Mar 1st, 2010 at 4:25pm
 
As a kid I used to use a metal shoe horn on a piece of string. It worked quite well as I remember (also around 50 years ago).

If you're making one out of wood, make sure the cross section is not symmetrical. It has to be induced to spin on its own axis as it is being spun around.
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slingbadger
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Re: Bull Roarers
Reply #4 - Mar 1st, 2010 at 4:49pm
 
I've made ones similar to the one in the tutorial. They are surprisingly loud
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Slinger93
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Re: Bull Roarers
Reply #5 - Mar 1st, 2010 at 5:20pm
 
It is not a WEAPON?!?!?!?!?! Are you joking? Grin Wink Cheesy

http://www.dailymotion.com/video/x7gzih_bull-rorer_fun
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Re: Bull Roarers
Reply #6 - Mar 1st, 2010 at 7:58pm
 
i've seen some really beautifal ones on paleoplanet
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aztec
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Re: Bull Roarers
Reply #7 - Mar 2nd, 2010 at 3:37am
 
heres two i experimented with awhile back

the one on the top is 3" by 10"

and the one on the bottum is 2 and a half " by 13" and is the louder of the two

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bull_roarers.png (1093 KB | )
bull_roarers.png

i slung a rock into the air! &&where it lands i know not - ow
 
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Fundibularius
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Re: Bull Roarers
Reply #8 - Mar 2nd, 2010 at 4:23am
 
Et Cetera wrote on Mar 1st, 2010 at 4:14pm:


A very fine link, btw. Lots of good stuff.
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Re: Bull Roarers
Reply #9 - Mar 2nd, 2010 at 4:45am
 
Made some a while back, I think it´s important you use pretty dense, heavy wood.
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Lycurgus
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Re: Bull Roarers
Reply #10 - Mar 2nd, 2010 at 2:33pm
 
aztec wrote on Mar 2nd, 2010 at 3:37am:
heres two i experimented with awhile back

the one on the top is 3" by 10"

and the one on the bottum is 2 and a half " by 13" and is the louder of the two



Mine is only half as big as your largest so maybe thats the problem.
Everything else seems about right, so longer and thinner is the way forward. Smiley
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You only need two tools in life - wd-40 and duct tape. If it doesn't move and should, use the wd-40. If it shouldn't move and does, use the duct tape.&&&&Remember - You are unique.............just like everybody else.
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Curious Aardvark
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Re: Bull Roarers
Reply #11 - Mar 3rd, 2010 at 6:40am
 
got an australian one round somewhere.
used to have fun with it as a kid.

And no they're not a weapon lol.
aboriginal communications device. the low frequency sound they produce carries a long way.
kinda like the way elephants and crocodiles communicate, but for people Smiley
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Et Cetera
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Re: Bull Roarers
Reply #12 - Mar 3rd, 2010 at 7:36am
 
I tried make one from a piece of cherry flooring sample, but alas, no sound. Might it be too small? I made it about (guessing) 6-7 inches by 2 or so.
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Re: Bull Roarers
Reply #13 - Mar 3rd, 2010 at 3:59pm
 
Probably, Aztec has his at 13 inches. some thing i'ver heard was that the Aborigines also used it as a means of scaring prey into traps, like the boomerang.

the longer it is the more easier it would vibrate/flex and then that would make it sound more?
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There's no break, there's no end, just a-living on;&&Wide awake, with a smile, going on and on.
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slingbadger
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Re: Bull Roarers
Reply #14 - Mar 3rd, 2010 at 5:57pm
 
Slinger93 wrote on Mar 1st, 2010 at 5:20pm:
It is not a WEAPON?!?!?!?!?! Are you joking? Grin Wink Cheesy

http://www.dailymotion.com/video/x7gzih_bull-rorer_fun

No, they are meant for communication over long distances. Also, they are used in some religious rituals. The roaring helps you go into a trance.
The only way they could be a weapon is if you hit yourself with it.
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The greatest of all the accomplishments of 20th cent. science has been the discovery of human ignorance  The main difference between genius and stupidity is that genius has it's limits.-Einstein   I'm getting psychic as I get older. Or is that psychotic?
 
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