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Old 5th November 2004, 05:41 AM   #1
amisdad is offline amisdad  United States
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Default 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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Old 5th November 2004, 08:13 AM   #2
Ropie is offline Ropie  United Kingdom
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Default Re: my wood is too small!

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.
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Old 5th November 2004, 11:14 AM   #3
MJK is offline MJK  United States
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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,
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Old 5th November 2004, 01:22 PM   #4
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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.
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Old 5th November 2004, 02:06 PM   #5
amisdad is offline amisdad  United States
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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.
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