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ISO SINGLE K402 & K510 Lens' for my KPT 415 Project


Tony T

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13 hours ago, Tony T said:

Wow, not even 1 reply?!

 

Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply Reply 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By my calculations, that's 1566 (29x54) replies within less than a minute! Ladies and gentlemen, we have a new record!!!

 

Now onto new business, has anyone ever attempted to make their own K402 out of wood?

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1 hour ago, Tony T said:

By my calculations, that's 1566 (29x54) replies within less than a minute! Ladies and gentlemen, we have a new record!!!

 

Now onto new business, has anyone ever attempted to make their own K402 out of wood?

Possibly...but, don't be too quick to give up on your search .. No never know what nay coming down the pike...one horn here, another there.  You'll be all set...

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Out of curiosity, I wonder if anyone out there has ever taken on the task of actually building a wooden horn lens. Perhaps a 402, or whatever? I've seen A LOT of them in pictures. I'm curious of any challenges that were encountered. I'm most curious as to ones approach of the adaptation from the actual wooden lens itself, to the driver mount. Joining the female threaded housing section (round thing that receives the driver) to the newly formed wooden lens is my only challenge. Fabricating the wooden lens and face frame isn't too difficult for me. I've bent wood before.

Due to the fact this is not a "mold" that you would normally pour a black substance into at the Klipsch factory, the rear of the wooden lens would need to be mated with the receiving end of the driver housing. 

I'm starting from scratch here. Any known shortcuts and/or time saving ideas would be greatly appreciated.

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I am very skeptical of being able to make these out of wood. There might be stability problems and whether they were made to the "same" geometry is asking for quite a bit. 

 

Personally, I have not seen any measures (and compared to the real thing). However I have heard people give the usual testimonials .... "if they sound as good as they look ...". It is usually the nicely oiled hard wood horns that get the biggest raves. Is that a good source of evidence? (insert smiley face here).

 

I would hold out for actual Klipsch horns becoming available. 

 

good luck,

-Tom

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2 hours ago, Tony T said:

By my calculations, that's 1566 (29x54) replies within less than a minute! Ladies and gentlemen, we have a new record!!!

 

Now onto new business, has anyone ever attempted to make their own K402 out of wood?

Yes and if you google wood k-402 horn you will find things of interest. I have to tell you it is a labor of love to do this and would take considerable time to build and accurate measuring both for a build model and during construction and I would never attempt a project like this over buying it outright from Klipsch or if you get really lucky a second hand set. You are talking a huge investment in time and I doubt highly that you can maintain the exact shape the 402 is so famous for.

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I got several K-510 horns direct from Klipsch ... sold them "here" assuming it was no problem. :)  Then the Klipsch Gestapo got to me and I was not even able to get a replacement :(  Got a lot of promises, but never any action.  But ... you may want to try ... never know; maybe you'll get "lucky."  :D 

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I have access to a wood shop that has everything imaginable for such a project. A large CNC machine, typical cabinet making machinery, and much much more. This is a commercial wood working shop. No backyard garage approach whatsoever. My friend builds custom furniture and we've "bent wood" together in the past on an entirely different level although, the principal remains the same.. This guy is a master of wood crafting and he's anxious to give it a go. It helps I assisted in funding his shop 15 years ago and what's best, he's always up for a challenge! This is something he's been looking forward to taking on for some time.

I'm and ex Sheet Metal layout tech. I am going to build a prototype of all 4 Lens Walls out of 24 gage sheet metal which will assist in the input information of the computerized CNC machine. No need to go into the rest of the process but rest assured, it will be very precise.

Yes it will take some time but hey, what's life without an interesting project. Heck, I have nothing but time on my hands after retirement.

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41 minutes ago, Tony T said:

I have access to a wood shop that has everything imaginable for such a project. A large CNC machine, typical cabinet making machinery, and much much more. This is a commercial wood working shop. No backyard garage approach whatsoever. My friend builds custom furniture and we've "bent wood" together in the past on an entirely different level although, the principal remains the same.. This guy is a master of wood crafting and he's anxious to give it a go. It helps I assisted in funding his shop 15 years ago and what's best, he's always up for a challenge! This is something he's been looking forward to taking on for some time.

I'm and ex Sheet Metal layout tech. I am going to build a prototype of all 4 Lens Walls out of 24 gage sheet metal which will assist in the input information of the computerized CNC machine. No need to go into the rest of the process but rest assured, it will be very precise.

Yes it will take some time but hey, what's life without an interesting project. Heck, I have nothing but time on my hands after retirement.

That's good but you will still need a way to accurately measure a horn first as there are no cad plans out there. Curious to know how you are going to form 24g and be true to life accurate.

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5 minutes ago, Tony T said:

Just researched and found this old thread below. Cool step by step pictures.


 

 

 

Bruce Edgar Tractrix horn project

By Arash, November 18, 2014 in Technical/Modifications

Google images will lead you to a guy in Australia who has built the best I have seen. It is a good thing you are retired because you will be spending some real time on these.

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I will trace (transfer) the actual curvature from my only K402 Lens onto a flat surface. In addition, I will cross check it with a little math. Once again, I used to be a journeyman sheet metal layout tech. I produced a great many "square to rounds, compound offsets, drop cheek elbows", etc. through many years of standing in front of a layout table. No difficulty whatsoever for me. These sheetmetal patterns will be exact.

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2 minutes ago, Tony T said:

I will trace (transfer) the actual curvature from my only K402 Lens onto a flat surface. In addition, I will cross check it with a little math. Once again, I used to be a journeyman sheet metal layout tech. I produced a great many "square to rounds, compound offsets, drop cheek elbows", etc. through many years of standing in front of a layout table. No difficulty whatsoever for me. These sheetmetal patterns will be exact.

Good luck and keep us posted on progress with pictures of course.

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  • 2 weeks later...

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