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Old 28th December 2012, 11:19 AM   #1
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Default FH3 Vs. DTB

Hello, its been a while, but....Its Christmas, aka. 'Project Time'.

With the advent of a dedicated room for fettling stuff in, so has the need for a suitable pair of speakers to put in it. Our-Phil (Pre-65) kindly loaned me his MDF FH3's as a stop gap, approx 10 months later I'm finally getting around to building a pair for myself.

I like working with Ply, so I'll be making a pair in 18mm BP. I've had a quick browse around at piccies of other fella's constructions and like the little 'top hat' piece seen on these...
Click the image to open in full size.

...and I think that rebated stylee would look good in simple ply too. I want to go one step furthur (....'on the bus...' ) and rebate the complete front panel into the side/top/and base parts. That way I'll have a nice 6mm 'frame' of yummy ply all the way around the front baffle giving them a nice finish (IMO!), which is nice as I don't want/like veneered or painted speakers as much as hot-n-saucy nekkid ply!!!

This morning is cut plan and measuring time.

Hopefully pick up some nice BP this afternoon and get it cut accurately then its orf darn the shed for rest of the holiday period.

Whahey!

DTB
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Old 29th December 2012, 08:16 PM   #2
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Finished!

I've gone for a more organic look....
Click the image to open in full size.

Hahaha (etc).

So after a lot of planning, head scratching and adding up and taking-away to accommodate the rebated-ness (good word that)....
Click the image to open in full size.

...I went and got a lovely sheet of 18mm cut today.

...." the professionals choice...as recommended by people with thumbs"
Click the image to open in full size.

1st job was to jig and rout the bases. I've gone for and 8mm 'frame cos it looks more balanced IMO.
Click the image to open in full size.

Full safety gear natch, plus I have to wear glasses which is a recent pain in the botty but at least I can see what I'm cutting/routing thesedays... which is nice.
Click the image to open in full size.

At the end of todays play we have a grand total of 2 bases made.
Click the image to open in full size.

More dust as its made.

DTB
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Old 29th December 2012, 11:03 PM   #3
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Dust is good. So long as it isn't MDF dust anyway.
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Old 30th December 2012, 10:13 AM   #4
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Aye, "Kents Premier dust manufacturing facility" according to Dust Monkey Magazine.

DTB
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Old 30th December 2012, 08:10 PM   #5
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Today started with 'Nard in the groove and me routin' a groove...
Click the image to open in full size.

I've made 2 experimental tops so I can practise getting the 4.8 degree angle nice.

I did a temp lash up to check maths work was correct and the internal dimensions were correct, bang on, huzah. Then I worked on the baffle angle I needed to cut on the side panels...
Click the image to open in full size.

...and at the end of play today have 2 side panels cut out of 4 total and a pair of neatly routed top panels.
Click the image to open in full size.

Doesn't look it but a lot of accurate progress was made today. More dust manufacturing tomorrow.

DTB
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Old 31st December 2012, 09:47 PM   #6
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So today,and accompanied by Stevie Wonder's 'golden period' albums, I drew out the 69" radius for the rear horn profile. Having transferred that shape I made up a 'master' panel by which all other panels will be cut from (knowing that the master is bang-on size and angle-wise).

Master and Minion.
Click the image to open in full size.

Cheese and Onion.
Click the image to open in full size.

Just checking everyone's still awake

Next I jig sawed the approx curve....
Click the image to open in full size.

...and then, using a newly purchased Trimmer and follower bit I started electro-whittling....
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Whahey! A clone!
Click the image to open in full size.

After a few more 18mm x 10mm deep routs we have the shape of a nearly free standing FH3....
Click the image to open in full size.

...with a saucy rebate where the baffle will go.
Click the image to open in full size.

Its twin brother will be birthed tomorrow from these...
Click the image to open in full size.

Once I have attempted to empty some of these...
Click the image to open in full size.

Cheers! :-)

DTB
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Old 31st December 2012, 10:19 PM   #7
chrisb is offline chrisb  Canada
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Geeze, you make that look easy

for me it's


Click the image to open in full size.

or

Click the image to open in full size.


(OK, both actually)


This I never saw before, and just about snorted out my coffee:

http://files.newswire.ca/29/WinePairings.pdf


but for serious evening consumption (like after the 3HP router is put to bed) , my favorite pairing would need to be:

Click the image to open in full size.

who needs all those epithelial or liver cells anyway?
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Old 1st January 2013, 06:09 AM   #8
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^^^

...and a happy new year to you ya Crisp Munching vodka swillin' 3HP router wielding crazy!!!

Only 2 more hours to before I can get down the shed for more mess-making

DTB
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Old 1st January 2013, 07:55 AM   #9
chrisb is offline chrisb  Canada
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Quote:
Originally Posted by Dave the bass View Post
^^^

...and a happy new year to you ya Crisp Munching vodka swillin' 3HP router wielding crazy!!!

Only 2 more hours to before I can get down the shed for more mess-making

DTB

yeah, the crisps/chips are all I get to "munch" any more, at least it's "Miss" Vickies - not that there's anything wrong with the other


I hope you enjoy the little horns Dave
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Old 1st January 2013, 09:33 AM   #10
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SeaBrooks Crisps for me, love 'em. Too much some would say when they look at my tum tum!

Quote:
Originally Posted by chrisb View Post

I hope you enjoy the little horns Dave
I have been Chris, I really like what the 126 does in that little 'orn. I've had a MDF pair on loan from a chum on Audio-Talk for about 10 months. I really felt the time had come to build a pair for myself so I can release the borrowed pair back into the wilds of Essex where they came from.

Onwards! To the shed!

DTB
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