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Re: 12pi bass horn plans [message #95237 is a reply to message #95236]

Fri, 11 February 2022 09:42

Wayne Parham
Messages: 18787
Registered: January 2001

Illuminati (33rd Degree)

You've got mail!

As for machining the center pole, my suggestion is to purchase blown drivers and then recone them after the machining operations. That definitely works best, because you have access to the gap and can clean it out before installing the voice coil and cone.

When I made the first prototypes, I thought I could capture the metal filings with the magnet. That it does, but since the gap has the greatest intensity, that's where most of the filings are captured. Laughing

So I did as I'm describing to you - machining an empty basket and then reconing it. After that, I began to have OEM runs made of the drivers, where the center pole was machined at the factory prior to installing the cone and final assembly. Either way is fine - machining new parts prior to final assembly or starting with bare baskets from blown drivers and reconing them afterwards - but trying to keep the shavings out of the gap with the voice coil installed just really doesn't work.

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		12pi bass horn plans By: vega on Sat, 07 August 2010 07:39
		Re: 12pi bass horn plans By: Wayne Parham on Sat, 07 August 2010 09:17
		Re: 12pi bass horn plans By: Robert.L on Mon, 20 June 2011 19:38
		Re: 12pi bass horn plans By: Wayne Parham on Mon, 20 June 2011 21:30
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		Re: 12pi bass horn plans By: Wayne Parham on Wed, 15 September 2010 16:47
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		Re: 12pi bass horn plans By: fbottone on Fri, 17 September 2010 11:42
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		Re: 12pi bass horn plans By: Wayne Parham on Wed, 29 September 2010 07:28
		Re: 12pi bass horn plans By: realaudioent on Wed, 06 October 2010 14:05
		Re: 12pi bass horn plans By: Wayne Parham on Wed, 06 October 2010 18:21
		Re: 12pi bass horn plans By: teck2100 on Thu, 17 February 2011 20:06
		Re: 12pi bass horn plans By: Wayne Parham on Fri, 18 February 2011 07:48
		Re: 12pi bass horn plans By: Hermit on Sat, 05 March 2011 05:32
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		Re: 12pi bass horn plans By: Norris Wilson on Tue, 05 April 2011 21:04
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		Re: 12pi bass horn plans By: speakeraddict on Fri, 04 November 2011 00:16
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		Re: 12pi bass horn plans By: Wayne Parham on Fri, 11 February 2022 09:42

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