my wood is too small!

amisdad · 5th November 2004, 05:41 AM

I have started buiding an FE-206E MLTL ala MJ king. I drive a small car so I had to have the Birch ply chopped down at the local Home depot. When I get home I realized that the ignoramous cut all the pieces a different size. I even left him the plans to show him what sizes the boards needed to be at minimum. After spending the day trimming everything square and equal, the front and rear lost a total of 1.25 inches Left to right. The sides remain correct.

My question is:

How do I compensate? Does the port go larger/smaller in diameter or length? Do I just use more Dacron or pretend like it never happened and march forward?

I would use the mathcad to figure this out, although I will never use Windows. I am a Mac only person.

Ropie · 5th November 2004, 08:13 AM

Quote:

pretend like it never happened and march forward

If it sounds bad (which it won't) you can then try playing about with the stuffing, etc. Next time, get the guys with the big saws to do the main cuts but do most of it yourself - it's really not that hard with a half-decent hand saw.

MJK · 5th November 2004, 11:14 AM

Hi amisdad,

I quickly plugged the modified dimensions into the MathCad sim of the FE-206E ML TL and the mistake does not look fatal. On the bad side the bass will not go as deep as planned (35 Hz --> 40 Hz) but on the good side the mid bass response looks a little flatter. One fall back position is to have the four wrong pieces recut and start again. If it was me, I would go with what you have cut already.

Great name, I'm an Amy's dad too.

Hope that helps,

Timn8ter · 5th November 2004, 01:22 PM

Would it help to make the port tube a little longer to try and recover some of the low end? I found it seemed to work when I was playing around with a pipe that was a few inches short.

amisdad · 5th November 2004, 02:06 PM

Thanks for the quick feedback. I now have a few options that I can try. I'll let you know what happens in the next day or two. I have one enclosure done already and I'll try to finish the second one today.

5th November 2004, 05:41 AM	#1
amisdad diyAudio Member Join Date: Mar 2004 Location: Chicago	my wood is too small! I have started buiding an FE-206E MLTL ala MJ king. I drive a small car so I had to have the Birch ply chopped down at the local Home depot. When I get home I realized that the ignoramous cut all the pieces a different size. I even left him the plans to show him what sizes the boards needed to be at minimum. After spending the day trimming everything square and equal, the front and rear lost a total of 1.25 inches Left to right. The sides remain correct. My question is: How do I compensate? Does the port go larger/smaller in diameter or length? Do I just use more Dacron or pretend like it never happened and march forward? I would use the mathcad to figure this out, although I will never use Windows. I am a Mac only person.

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5th November 2004, 11:14 AM	#3
MJK Account disabled at member's request Join Date: Feb 2002 Location: Clifton Park, NY	Hi amisdad, I quickly plugged the modified dimensions into the MathCad sim of the FE-206E ML TL and the mistake does not look fatal. On the bad side the bass will not go as deep as planned (35 Hz --> 40 Hz) but on the good side the mid bass response looks a little flatter. One fall back position is to have the four wrong pieces recut and start again. If it was me, I would go with what you have cut already. Great name, I'm an Amy's dad too. Hope that helps,

5th November 2004, 01:22 PM	#4
Timn8ter diyAudio Member Join Date: Jul 2003 Location: Seattle, WA	Would it help to make the port tube a little longer to try and recover some of the low end? I found it seemed to work when I was playing around with a pipe that was a few inches short.

5th November 2004, 02:06 PM	#5
amisdad diyAudio Member Join Date: Mar 2004 Location: Chicago	Thanks for the quick feedback. I now have a few options that I can try. I'll let you know what happens in the next day or two. I have one enclosure done already and I'll try to finish the second one today.