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Old 3rd July 2013, 04:54 PM   #11
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300Hz MDF ones knocked up. Came together in a dry run perhaps 1-2mm out, slipped a lot when glueing up as held with just masking tape. Will use domino's on the next, proper one. So a bit gappy, and not up to final finish but a good start.

I need to work out how to join the driver to the turned entry horn and then to this.

Final will be from beautiful European Oak, ready and waiting. Just need some 2" drivers now!

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Old 24th July 2013, 11:36 AM   #12
3GGG is offline 3GGG  Australia
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Biscuits and decent masking tape along the seam, running the full length on the inside and out should hold them tight.
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Old 24th July 2013, 11:38 AM   #13
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Should have domino'd, got too excited,

With the proper ones I will. My European oak isn't quite wide enough to get two leaves out of one width.

Maybe cherry or I might just try a proper pair with 18mm birch ply.

Still no compression driver to test and see if I like it before committing time and money!
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Old 24th July 2013, 02:09 PM   #14
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Looking for plans for a small horn, which will be 3D printed.

Im thinking between 10-15KHz. Any good ideas?

I guess will be similar to Stereo-labs' 14khz one

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Old 24th July 2013, 02:13 PM   #15
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Or slightly larger if I comes in at a reasonable price. (the bottom horn!)

Like these by Acapella

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Old 27th July 2013, 05:18 PM   #16
zobsky is offline zobsky  India
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I used ebay clones of this bit set to make conical horns Multi Sided Glue Joint Router Bit Sets by Amana Tool
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Old 28th July 2013, 02:23 PM   #17
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Clever. I will investigate. The festool does a pretty good job. But these look almost perfect. Would they work with curved profile?
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Old 28th July 2013, 02:42 PM   #18
zobsky is offline zobsky  India
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Quote:
Originally Posted by Studio Au View Post
Clever. I will investigate. The festool does a pretty good job. But these look almost perfect. Would they work with curved profile?
I doubt, they were intended for straight sided forms.
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Old 29th July 2013, 08:41 AM   #19
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@ Zobsky, any pis of your horns?
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Old 2nd August 2013, 04:14 PM   #20
zobsky is offline zobsky  India
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Quote:
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@ Zobsky, any pis of your horns?
A few, here's one when I was testing it out with a TB W5-1880 . Eventually, I broke down the horn as I used crappy glue for the sides and crappy ply, so the mechanical strength just wasn't there, resulting in a few wierd resonances. But the building technique itself was not at fault.
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