Slowly does it !!

Andy G · 7th September 2006, 06:41 AM

This one is taking some time because of other stuff that has to be done. Also I am ultra triple checking everything while working with the Tassie Blackwood, because its VERY expensive to replace. !!

Top section is getting there slowly, and lots of work to do on the bottom section.

largish pic files !

http://users.tpg.com.au/users/gradds/blackwood2.jpg
http://users.tpg.com.au/users/gradds/blackwood3.jpg

FullThrottleRic · 7th September 2006, 07:48 AM

Looking good so far

Any other details of what you're doing, drivers ect?

Andy G · 7th September 2006, 08:03 AM

Drivers for the top are some left-over Vifa M11WG and the Peerless 80mm flange tweeter (can't remember the number at the moment.) open back MTM.
Bass drivers are 10" Jaycar 120w poly's which have been waiting for a project for a long time, vented, tuned to 35Hz iirc.
X-o will probably be a link series at 300ish and 3000Hz. All drivers have nice flat response in the range asked of them, and no gremlins lurking outside their anywhere near working range, so should work

ie, its a "use up what's on the shelf"project.

noodle_snacks · 7th September 2006, 08:29 AM

How much do you have to pay for the blackwood up there?

ralphs99 · 7th September 2006, 08:34 AM

Nice work Andy!

I'll be very interested in seeing how you finish the Blackwood. It's such a beautiful timber.

How do you find working with it?

Where did you buy your timber from?

Cheers, Ralph

Andy G · 7th September 2006, 08:41 AM

This piece I bought down in Tassie about 4-5 years ago, when I had my station wagon down there, visiting parents.

This piece seems to be rather dry and brittle, it leaves feathers when routed, rough surfaces when milled against the grain etc.. ie quite hard to work with !

I am hoping to finish with a natural oil of some sort. We will see !!

noodle_snacks · 7th September 2006, 09:14 AM

the brittleness is mostly caused by the fairly course grain, make sure you wear a respirator cutting the stuff (probably a bit late heh), the saw dust is somewhat toxic and can cause lung irritation. When you are routing the driver recesses a spiral down cut bit can be used to prevent tear out, you have to take it slow since the sawdust has no where to go though.

7th September 2006, 06:41 AM	#1
Andy G diyAudio Member Join Date: Apr 2002 Location: Newcastle, Australia	Slowly does it !! This one is taking some time because of other stuff that has to be done. Also I am ultra triple checking everything while working with the Tassie Blackwood, because its VERY expensive to replace. !! Top section is getting there slowly, and lots of work to do on the bottom section. largish pic files ! http://users.tpg.com.au/users/gradds/blackwood2.jpg http://users.tpg.com.au/users/gradds/blackwood3.jpg

7th September 2006, 08:34 AM	#5
ralphs99 diyAudio Member Join Date: Jul 2006	Nice work Andy! I'll be very interested in seeing how you finish the Blackwood. It's such a beautiful timber. How do you find working with it? Where did you buy your timber from? Cheers, Ralph __________________ Aeronet research pages Acoustic, Electronic & Speaker Design

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7th September 2006, 07:48 AM	#2
FullThrottleRic diyAudio Member Join Date: Apr 2001 Location: Leeds, UK	Looking good so far Any other details of what you're doing, drivers ect?

7th September 2006, 08:03 AM	#3
Andy G diyAudio Member Join Date: Apr 2002 Location: Newcastle, Australia	Drivers for the top are some left-over Vifa M11WG and the Peerless 80mm flange tweeter (can't remember the number at the moment.) open back MTM. Bass drivers are 10" Jaycar 120w poly's which have been waiting for a project for a long time, vented, tuned to 35Hz iirc. X-o will probably be a link series at 300ish and 3000Hz. All drivers have nice flat response in the range asked of them, and no gremlins lurking outside their anywhere near working range, so should work ie, its a "use up what's on the shelf"project.

7th September 2006, 08:29 AM	#4
noodle_snacks diyAudio Member Join Date: Mar 2004 Location: Hobart, Tasmania	How much do you have to pay for the blackwood up there?

7th September 2006, 08:41 AM	#6
Andy G diyAudio Member Join Date: Apr 2002 Location: Newcastle, Australia	This piece I bought down in Tassie about 4-5 years ago, when I had my station wagon down there, visiting parents. This piece seems to be rather dry and brittle, it leaves feathers when routed, rough surfaces when milled against the grain etc.. ie quite hard to work with ! I am hoping to finish with a natural oil of some sort. We will see !!

7th September 2006, 09:14 AM	#7
noodle_snacks diyAudio Member Join Date: Mar 2004 Location: Hobart, Tasmania	the brittleness is mostly caused by the fairly course grain, make sure you wear a respirator cutting the stuff (probably a bit late heh), the saw dust is somewhat toxic and can cause lung irritation. When you are routing the driver recesses a spiral down cut bit can be used to prevent tear out, you have to take it slow since the sawdust has no where to go though.

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