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Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 3:33 am
by All Thumbs
Sexy metal Bill Fitzmaurice badges arrived direct from the States thanks to http://www.speakerhardware.com/ :-)

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Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 3:34 am
by All Thumbs
So that's everything up to date.

Today looks like a nice sunny day here in the UK so I'm seriously hoping to get one cab to near completion today!!!

Will post progress pic's later....

Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 5:01 am
by All Thumbs
Really, really, really p*ssed off!!!!!

Just went out to leisurely trim the horns to size as described in Bill's plans only completely wreck the past two days work!!!!!

With each cut things got steadily worse. Nightmare :wall: :cussing:

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Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 5:34 am
by All Thumbs
Oh well, nobody died I guess!

Time to make another two :-(

Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 6:09 am
by Chris_Allen
Using lesser grade ply on internal components is fine - the big advantage to birch is that it resists dents far better due to it's strength. On the mid horn, that's not applicable, though, birch is much nicer to work with.

When trimming the tops of the horn, I would build a small 'L' shaped sled to put it on so your edge with your fence is straight.

Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 6:40 am
by LelandCrooks
Happens to the best of us on the throats. Saw sled, go very slowly.

Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 7:18 am
by All Thumbs
LelandCrooks wrote:Happens to the best of us on the throats. Saw sled, go very slowly.
Yeah cheers for the advice - just making a sled now. Thought going up against the table saw fence would have sufficed but obviously not lol!

Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 7:25 am
by All Thumbs
Chris_Allen wrote:Using lesser grade ply on internal components is fine - the big advantage to birch is that it resists dents far better due to it's strength. On the mid horn, that's not applicable, though, birch is much nicer to work with.

When trimming the tops of the horn, I would build a small 'L' shaped sled to put it on so your edge with your fence is straight.
Thanks for the tip Chris!

Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 7:14 pm
by All Thumbs
So I made a sled/jig....

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Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 7:17 pm
by All Thumbs
Parts cut AGAIN for a new pair of horns to replace the ones I trashed this morning lol...

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Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 7:19 pm
by All Thumbs
And here are the finished replacement horns. I shall very carefully trim them in the morning using the sled/jig I made today. Wish me luck...

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Re: First Omni 15 Full Range build...

Posted: Wed Mar 13, 2013 9:00 pm
by AntonZ
All Thumbs wrote:So I made a sled/jig....

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You are going to love that jig. Makes trimming of the horns so easy.

I built a WedgeHorn some time ago, which has a similar shaped but larger horn that needs to be trimmed down to fit the shell. Super tight fit, and it was dead easy.

Making great progress there Scott. I'm looking forward to you using the pair at full blast first time. Be sure to have some hearing protection. Structural damage to your house may occur :cowboy:

Re: First Omni 15 Full Range build...

Posted: Thu Mar 14, 2013 2:24 am
by All Thumbs
AntonZ wrote:I'm looking forward to you using the pair at full blast first time. Be sure to have some hearing protection. Structural damage to your house may occur :cowboy:
Love it :-)

Re: First Omni 15 Full Range build...

Posted: Thu Mar 14, 2013 4:00 am
by All Thumbs
Excellent!!!! The jig/sled made the job 1000% easier :-)

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Re: First Omni 15 Full Range build...

Posted: Thu Mar 14, 2013 5:43 pm
by AntonZ
They do indeed look quite a bit better than the first pair. Well done :clap: