BillFitzmaurice.info

Hi,

I have just started the build of my first OT12.
I'm no carpenter but i decided to give it a try.
The wood i used is poplar, I hope that it is good enough for the job. Anyway it's very light.

I also bought TopHats so i can mount theme on a speaker stand. But where do i need to make a hole for the hat?
http://www.thomann.de/be/km_19656_flanschbuchse.htm
They are tall, so i suspect that they would go trough the Throat reflector.
The Throat reflectors aren't installed yet, i think they will be a pain in the ass if i need to cutout the tophat.
Any Idea's or comments? Is it better to shorten the tophat?

Edit:
How do i mount the driver on the spacer? I have T-nuts, so just drill a hole and put T-Nut in and then use short bolts?

Here are some Pic's:

The top hat mount is in the plans. The plans also recommend using screws for the woofer; if you were to use Tnuts they, and the spacer, would have to have been installed before the cab was assembled.

Bill Fitzmaurice wrote:The top hat mount is in the plans. The plans also recommend using screws for the woofer; if you were to use Tnuts they, and the spacer, would have to have been installed before the cab was assembled.

Thx Bill, So If i understand the plans correct, first install the Throat reflectors, and at the end of the build make a hole where the top hat has to go?

Greets,
Digi

digi128pci wrote:
Thx Bill, So If i understand the plans correct, first install the Throat reflectors, and at the end of the build make a hole where the top hat has to go?

Greets,
Digi

That's the easiest method to get the hole lined up properly. With a holesaw use a longer pilot bit than standard.

I positioned mine so that the tube part is less than 1/4" in front of the baffle. I used the old baffles, however, so they're in front of the solid portion of the baffle.

Hi, I just realized i used B-grade poplar with only 3 layers (I tought you counted the thinner layers to ), should i continue the build or search for better wood ?

Allright now i'm confused, i called my lumberyard today and they told me its 7 layers. Maybe i should post a picture of the wood ...

Edit: They also told me that the wood is from rioja-area in Spain. The class they specify is BB.

digi128pci wrote:Allright now i'm confused, i called my lumberyard today and they told me its 7 layers. Maybe i should post a picture of the wood ...

Edit: They also told me that the wood is from rioja-area in Spain. The class they specify is BB.

that is not Baltic Birch. It should have even plys, not a thin veneer on the outside. the lumberyard is ing you.

digi128pci wrote:Allright now i'm confused, i called my lumberyard today and they told me its 7 layers. Maybe i should post a picture of the wood ...

Edit: They also told me that the wood is from rioja-area in Spain. The class they specify is BB.

I see seven plies.

That's what I counted, too. What got me was that, on the top, that layer looked thinner, so I wasn't sure if it was a ply or a veneer.

Please put your location in your profile, maybe someone is near you and can suggest a plywood source.

Second time I have posted this in the last five minutes for two different members...

That ply looks fine to me. On another note, after clicking on the ply pic, seems my computer was attacked by something....anybody else get that?

Greg Plouvier wrote:That ply looks fine to me. On another note, after clicking on the ply pic, seems my computer was attacked by something....anybody else get that?

hmm not yet

Bruce Weldy wrote:

digi128pci wrote:Allright now i'm confused, i called my lumberyard today and they told me its 7 layers. Maybe i should post a picture of the wood ...

Edit: They also told me that the wood is from rioja-area in Spain. The class they specify is BB.

that is not Baltic Birch. It should have even plys, not a thin veneer on the outside. the lumberyard is ing you.

No the wood is Popular. Allright then there are 7 layers. I think 3 ticker layers and 4 smaller layers.

The question is should i use this wood (Light and relative cheap about 10 euro/m2) or should i get other wood with even tick layers and call this a practice build

What attacked . If so plz tell me and i will use other site to upload photo's.

I tried the picture again and it seems ok - AVG weirdness maybe?? Anyway that plywood looks fine. BB is the grade - not an abbreviation for baltic birch. A lot of big companies are using poplar now because it's light.(Dynacord for one)