Hi All
Just stumbled on the firm making novel replica enclosures using computer controlled routers to cut multiple MDF layers to build up a speaker enclosure.
www.creationaudio.com.au/Tannoy.html
Has anyone seen this methodology before and know what its sound is like? FYI their Tannoy GRF kit (no drivers) retails for Aus$4,000 per pair. (About US$2,500 or UKP1,700). {Sorry Brits, cannot find a pound sign on my keyboard}
Cheers
Graeme
Just stumbled on the firm making novel replica enclosures using computer controlled routers to cut multiple MDF layers to build up a speaker enclosure.
www.creationaudio.com.au/Tannoy.html
Has anyone seen this methodology before and know what its sound is like? FYI their Tannoy GRF kit (no drivers) retails for Aus$4,000 per pair. (About US$2,500 or UKP1,700). {Sorry Brits, cannot find a pound sign on my keyboard}
Cheers
Graeme
The stacked design would be a very easy build but extremely heavy. If the maths correct, these should sound fine. There's certainly no consensus in the sound of different cabinet materials.
Their least expensive looks pretty much like Fostex's BK20 kit.
I expect the kit price is high to protect the perceived value of fully built units.
These types of products/business approach will likely become more common. With plunge router CNC common and standardized, the value becomes the design and the cad drawing.
Their least expensive looks pretty much like Fostex's BK20 kit.
I expect the kit price is high to protect the perceived value of fully built units.
These types of products/business approach will likely become more common. With plunge router CNC common and standardized, the value becomes the design and the cad drawing.
Is it just me, or is the picture in the bottom of this page a photo of layertone's CNC rig doing his version of the Austin?
http://www.creationaudio.com.au/Flat_Packs.html
Sean
http://www.creationaudio.com.au/Flat_Packs.html
Sean
Hi...just saw this thread...so that's why I haven't posted.
Good questions.
My costs try and reflect what a 'conventional' build would be...plus takes into account the quantity of wood involved....plus time associated with sanding etc. I'll tend to focus on more complex curved horns because this lends itself verywell to CNC'ing. No point CNC'ing a rectangular box!
All of the designs are either in the public domain, or my own...the the C-Horn and the Aaron. Jim Carfrae has granted me approval to manufacture the Little Big Horn.
I'm also working collaboratively with Dave D on the Curvy Bruce, where I'm just about to post an updated drawing based on people's feedback.
I'm very much a part timer hobbyist...tarketing both the DIY and finished market.
Happy to help where I can.....
Andrew.
Sydney.
Good questions.
My costs try and reflect what a 'conventional' build would be...plus takes into account the quantity of wood involved....plus time associated with sanding etc. I'll tend to focus on more complex curved horns because this lends itself verywell to CNC'ing. No point CNC'ing a rectangular box!
All of the designs are either in the public domain, or my own...the the C-Horn and the Aaron. Jim Carfrae has granted me approval to manufacture the Little Big Horn.
I'm also working collaboratively with Dave D on the Curvy Bruce, where I'm just about to post an updated drawing based on people's feedback.
I'm very much a part timer hobbyist...tarketing both the DIY and finished market.
Happy to help where I can.....
Andrew.
Sydney.
atilsley said:
Thanks for responding so constructively, Andrew. I was absolutely intrigued by your methodology, also see some advantages and some negatives. eg. Curves are stiffer than strait line (less resonance) and you could easily make material thicker than standard sheet sizes (again stiffness goes up with square of thickness). And curves accoustically are usually better than strait lines.
Have you thought of upgrading or making an upgrade option of converting your GRF to Autograph by adding a front horn?
Cheers
Graeme
Hi Graeme
I may consider the autograph....but you'd appreciate that most of my designs are 2-dimensional...which fully utilises the CNC routing method.
I've purposed to try and stick with this...but happy to work with clients on ideas and enhancements.
For example - I have a basic CAD plan for Tannoy Rectangular GRF...but I've also developed quite a radical variation on this model using dual horn openings, and some really funky internals. It's al one huge 'slice', making fr a straight forward DIY build.
It would also lend itself to the clear sides....
Regards.
Andrew.
I may consider the autograph....but you'd appreciate that most of my designs are 2-dimensional...which fully utilises the CNC routing method.
I've purposed to try and stick with this...but happy to work with clients on ideas and enhancements.
For example - I have a basic CAD plan for Tannoy Rectangular GRF...but I've also developed quite a radical variation on this model using dual horn openings, and some really funky internals. It's al one huge 'slice', making fr a straight forward DIY build.
It would also lend itself to the clear sides....
Regards.
Andrew.
atilsley said:
This layering method was a dream for me & the core reason / motivation to purchase a CNC router to eliminate a significant part of manual tools / labor.
How can it be that someone that mentioned this technique is no longer being used? http://www.creationaudio.com.au/Flat_Packs.html
history here
http://fullrangedriver.com/forum/viewtopic.php?id=207
ron said:
ron said:
by the way, there are more large "original" photos here if anyone is interested
http://fullrangedriver.com/forum/viewtopic.php?id=388
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
I'm sorry of there's some problem here.
This photo was the one I remember inquiring about -
http://homepage.mac.com/tlinespeakers/FH/images/layertoneA166.jpg
I remember first looking at that and thought what a wonderful design and manufacturing process it was. But then, someone said that that was an earlier version, and the layered CNC process was not being used...replaced by a more conventional process.
It was solely because of that feedback I thought it would be OK to use the generic shot of the router table.
Again, my apologies for any offense.
The photo will be removed from my web site.
I trust we can still continue in the spirit of collaboration on these types of horn.
Kind regards.
Andrew.
This photo was the one I remember inquiring about -
http://homepage.mac.com/tlinespeakers/FH/images/layertoneA166.jpg
I remember first looking at that and thought what a wonderful design and manufacturing process it was. But then, someone said that that was an earlier version, and the layered CNC process was not being used...replaced by a more conventional process.
It was solely because of that feedback I thought it would be OK to use the generic shot of the router table.
Again, my apologies for any offense.
The photo will be removed from my web site.
I trust we can still continue in the spirit of collaboration on these types of horn.
Kind regards.
Andrew.
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