DIY Leslie!

[Ken Stone]

>        Well, I know this is a highly unorthodox approach.  And I'm sure
>there are many of you out there, rolling eyes and saying, "Bad idea or 
>big mistake..."  Then there are others, scratching your chin and thinking,
>"Well, maybe..."   This second group is the one who I'd like to reply on
>this notion.  SPecifically, with good comments on cabinet materials, 
>size, baffles, soundholes, etc.  The electrical side of it is gonna be clear
>cut.  But does anyone have good speaker building tips out there that 
>would apply to rotational speakers?  Anyone done this before?  If
>so, feel free to speak up.  This should be a good one. 
>                                                                -Robb Kunz

I have seen successfully home constructed leslie type speakers. The speaker
was mounted fixed, pointing upwards. Above that a baffle rotated, powered by
a motor mounted above. The baffle was made of light plywood, was basically a
box, as wide as the speaker, but longer, with ends that were cut to a
radius.  There was an opening at one end and a piece of ply (the width of
the speaker and acting as a reflector) running at 45 degrees from the top of
the box near the opening to the bottom of the box at the other side.  The
baffle must be balanced. Needless to say, a cabinet had to hold all this
together. I think the speakers in use were only 6 to 8 inches.

   _____________
  /  |       |  \
  |  |       |  |  baffle viewed above. Inner lines represent start and end of 
  |  |       |  |  45 degree reflector. Opening at this end.
  \__|_______|__/


      _______
     | motor |   
  _______|_______
 |           /
 |        /        baffle side view. cut away (sides missing)
 |     /       
 |__/          __
    ----------
     \  ||  /   Speaker
      ======
      ======
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                Ken Stone  sasami at blaze.net.au
                   ** Catgirl Paradise **
               <http://www.anime.net/~kens/>
         ** Australian Miniature Horses and ponies **
             <http://www.blaze.net.au/~sasami/>
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