Big Radius 2-way

[lowpolyjoe]

Re: Big Radius 2-way

Cool build

I've done a few kerf cut builds. Lots of dust and lots of work, but results can be pretty cool.

Good luck

[[email protected]]

Re: Big Radius 2-way

This is kind of a pre amble to a build I have planned for the summer.

[weinstro]

Re: Big Radius 2-way

A pair of PS180's lurk in my garage. I'd be interested in your opinion of them.

One design Q here, though - a large radius edge is often used to better manage diffraction issues - normally in the horizontal plane. Yet, this design will use the large radii for the top vertical edge only. Is this just a stylistic expression or is there some function behind the form, too?

Thanks, looks interesting.

Regards,

Rob

[nicholas_23]

Re: Big Radius 2-way

Arlis , Ive yet to attempted a kerf build. How do you know where to where to start and stop the kerf slots , if I may ask? Going to follow this build !!

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Re: Big Radius 2-way

The baffle is so wide and with the tweeter offset, the tweeter diffraction is out of the passband.
Really I didn't know where to stop and start. As it turns out, I should have made a few more at the top, there is a bit of a flat spot. As it turns out, I should have stoped sooner at the bottom,m the kerfs are in the glue joint and I had to cut it with a circular saw.
I will do better in my summer build.

[maynardg]

Re: Big Radius 2-way

Very nice, Lowell. I wish kerfing did not generate so much dust. Nice results though.

[[email protected]]

Re: Big Radius 2-way

Thanks

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Re: Big Radius 2-way

I was mistaken. I have a 10" Ultimax. Chuck, do you think that will work well in 1.25?

[Mike220]

Re: Big Radius 2-way

This is kind of a pre amble to a build I have planned for the summer.

Yeah buddy! My favorite kinda builds big ole' speakers with lots of drivers!

[[email protected]]

Re: Big Radius 2-way

They will be big. May end up in the dumpster like the last ones. I will bring them to DakotaDIY first though.

[[email protected]]

Re: Big Radius 2-way

More progress today.
Marked and cut the sides. Glued them on with Gorilla glue, lots of it, especially in the kerf area. A few brads too.

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Re: Big Radius 2-way

After shopping I went ahead and flush trimmed as well as applied a 5/8 round over. By the way, spend a few bucks more and get the triple wing. Like butter.


Then filled in a few gaps with PLPremium as well as the brad holes.

Will continue with Dry wall mud Saturday and some Duratex on sunday.

[lowpolyjoe]

Re: Big Radius 2-way

Will continue with Dry wall mud Saturday and some Duratex on sunday.

Very cool build.

Have you used drywall compound on speaker cabinets in the past? I used it once and was not happy with the result. It was very fragile and after painting, I bumped into a wall while carrying the cabinet through a doorway and got a big divot because the compound gave way under the paint. I have not used Duratex - maybe it will offer sufficient protection as an outer layer. Now I generally use Bondo when I need to fill, even tho it's more of a pain. Just wanted to mention that in case this was your first effort with the mud.

Looking forward to more pics

[[email protected]]

Re: Big Radius 2-way

The mud works very well under Duratex.

[lowpolyjoe]

Re: Big Radius 2-way

Right on. One of these days I have to give duratex a shot.