Who has built petal horns?

3GGG · 23rd January 2012, 01:22 AM

Who here as successfully built petal shaped horns? I am still researching wether to build mdf rings and turn them, buy from horns.pl or even build petal horns, with 11 or 13 sides.

Looking at a 200hz tractrix with a 1.4 inch throat and a 120 hz tractrix with a 100mm opening.

I am on a mac so no hornresp

I got inspired for the petal design when i saw the lute my father is building and though some bendy ply and a few templates could be a fairly easy horn build.

Brett · 23rd January 2012, 04:39 AM

I made some about a decade ago with a free program I found online to plot out the segment shapes. I then used some board a friend got from an art shoppe in watermelonville but I forget what it's called. White and smooth, couple of mm thick and bent very nicely.

I'd be wary of a 200Hz trax, as I had a 220Hz unit turned out of mdf and it beamed like a mongrel, to the point I found it unusable. If you're doing a bigger horn for the MB something similar in size to the Edgar 350hz flare, used above 500hz would work better. Check out Volvotreter's site.

MartinV56 · 9th February 2012, 04:36 AM

HORNS - HiFi Chile - Página 18

Post No.538

23rd January 2012, 01:22 AM	#1
3GGG diyAudio Member Join Date: Mar 2010	Who has built petal horns? Who here as successfully built petal shaped horns? I am still researching wether to build mdf rings and turn them, buy from horns.pl or even build petal horns, with 11 or 13 sides. Looking at a 200hz tractrix with a 1.4 inch throat and a 120 hz tractrix with a 100mm opening. I am on a mac so no hornresp I got inspired for the petal design when i saw the lute my father is building and though some bendy ply and a few templates could be a fairly easy horn build.

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23rd January 2012, 04:39 AM	#2
Brett diyAudio Member Join Date: Jan 2002	I made some about a decade ago with a free program I found online to plot out the segment shapes. I then used some board a friend got from an art shoppe in watermelonville but I forget what it's called. White and smooth, couple of mm thick and bent very nicely. I'd be wary of a 200Hz trax, as I had a 220Hz unit turned out of mdf and it beamed like a mongrel, to the point I found it unusable. If you're doing a bigger horn for the MB something similar in size to the Edgar 350hz flare, used above 500hz would work better. Check out Volvotreter's site.

9th February 2012, 04:36 AM	#3
MartinV56 diyAudio Member Join Date: Nov 2006	HORNS - HiFi Chile - Página 18 Post No.538

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