Pictorial of an exponential/radial horn being made for me by a friend... - diyAudio
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Old 23rd March 2006, 07:55 PM   #1
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Default Pictorial of a radial horn being made for my by a friend...

Do miss a horn sub-forum here at diyAudio. O well. I thought it would be cool to post the progress of radial horns a friend of mine is making. 400Hz and up first.

Click the image to open in full size.

O ...by the way....he built the milling machine himself as well.

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Click the image to open in full size.

This last pic shows where it will be cut through. This will be become one radial horn. For drivers we are thinking of P.Audio BM-D740 and P.Audio BM-D450
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Old 23rd March 2006, 08:02 PM   #2
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Looking interesting so far. Keep us posted.
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Old 23rd March 2006, 08:05 PM   #3
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Will do. He's building a 400Hz and up horn and a 5k and up horn.

We're (He's) still undecided on the < 400 Hz "section" so if anyone has suggestions....let em roll

By the way the first part (I believe the most crucial bit) was made with corian. The multiply he told me was a bit dissapointing with chipping etc. But that can be fixed.
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Old 24th March 2006, 03:41 PM   #4
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Click the image to open in full size.

Click the image to open in full size.

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Old 24th March 2006, 04:08 PM   #5
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Keep 'em coming!

Überkool.
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Old 24th March 2006, 04:47 PM   #6
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Wow,

Where do we get one of them there machines?
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Old 24th March 2006, 05:02 PM   #7
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Like Cal says, where do we get one of those machines? Or explanations of how to make one? Lovely.
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Old 24th March 2006, 07:22 PM   #8
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Default bilding a machine like this..

Buy 4 steppermotors NEMA23 with 400cpr encoders. Buy 4 screwfeeders (backlash free), 6 lineair motion rails with carriages (8) make a cabinet with 2 computers a cnc-controller, 4 stepperdrivers (1600-microstep) on a wind-tunnel and a 1000W Powersupply 72V, about 200 kilo's of aluminum profile, a bag full of metal hardware , a spindlemotor etc. etc... and think out a machine... That's how you do that... at least, i did...
Kees
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Old 27th March 2006, 02:01 PM   #9
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A wind-tunnel! How fast does this thing go? Seriously, why two computers?
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Old 27th March 2006, 08:11 PM   #10
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Just found out.the windtunnel is one of these heatsinks with fans inside..because the stepper motors get quite warm.
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