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-   -   FF85WK uFonken vs. Bass Reflex (https://www.diyaudio.com/forums/planet-10-hifi/223637-ff85wk-ufonken-vs-bass-reflex.html)

RickH 16th November 2012 12:24 PM

Chris - you mentioned being able to make both speakers from a single sheet or offcuts. I've approximated the area for the all the pieces required and it looks like a 2' x 4' sheet would be more than enough. Does that sound correct?

Thanks,

Rick

chrisb 16th November 2012 05:53 PM

Quote:

Originally Posted by RickH (https://www.diyaudio.com/forums/planet-10-hifi/223637-ff85wk-ufonken-vs-bass-reflex-post3243750.html#post3243750)
Chris - you mentioned being able to make both speakers from a single sheet or offcuts. I've approximated the area for the all the pieces required and it looks like a 2' x 4' sheet would be more than enough. Does that sound correct?

Thanks,

Rick


yup, these are not huge boxes - I'm so often cutting for multiple pairs of kits for the smaller designs or using offcuts that I can't remember the breakout for a single pair

planet10 16th November 2012 07:39 PM

When we were making the 1st batch of uFonken, i seem to recall Chris said he could get 5 pair out of a 5x5 sheet of 12mm BB.

dave

chrisb 16th November 2012 07:51 PM

Quote:

Originally Posted by planet10 (https://www.diyaudio.com/forums/planet-10-hifi/223637-ff85wk-ufonken-vs-bass-reflex-post3244236.html#post3244236)
When we were making the 1st batch of uFonken, i seem to recall Chris said he could get 5 pair out of a 5x5 sheet of 12mm BB.

dave



that sounds about right

planet10 16th November 2012 08:54 PM

I went ahead and did the drawing. With no trim allowance, & a 5mm kerf you can get 1 pair out of a 251mm sreip 1314mm long. So with care you should be able to get 2 pair out of a 24" x 48" panel of 12mm.

So you might be able to get 6 pair out of a 5x5 sheet with careful optimization. Close enuff that less trim allowance, and a smaller kerf might make the difference.

dave

chrisb 16th November 2012 10:19 PM

Quote:

Originally Posted by planet10 (https://www.diyaudio.com/forums/planet-10-hifi/223637-ff85wk-ufonken-vs-bass-reflex-post3244334.html#post3244334)
I went ahead and did the drawing. With no trim allowance, & a 5mm kerf you can get 1 pair out of a 251mm sreip 1314mm long. So with care you should be able to get 2 pair out of a 24" x 48" panel of 12mm.

So you might be able to get 6 pair out of a 5x5 sheet with careful optimization. Close enuff that less trim allowance, and a smaller kerf might make the difference.

dave


when cutting this quantity of parts on the big beam saw, we need to allow 5mm kerf for the main blade, and 10mm trim cuts, but I'm sure there was still a little left over from the 5 pair

RolandPSP 20th February 2016 05:15 AM

how low do these go ?

planet10 20th February 2016 05:19 AM

uFonken gets to about 70Hz F10, the new slighly larger uFonkenPlus goes 5 Hz lower.

dave

Jimmy154 17th March 2016 02:27 AM

uFonken^2 has two drivers per enclosure?
Do you have a link?

planet10 17th March 2016 02:52 AM

Yes. The existing design is for the original FF85k.

dave


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