horn making

Some pictures of the first horns I made out of  acrylic fiber:
http://www.acrylicone.nl/
I didn't use enough loosener in this first attempt so I had to use some violence to get in loose.
Hence the broken corners..




For those interested, this is a tractrix waveguide:
Here 's the calculations, no computers got hurt in the making ;)

And here's some final results, with the driver mounted: