StevenZ's Alpair 12P Build - Page 2 - diyAudio
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Old 2nd July 2012, 02:12 PM   #11
StevenZ is offline StevenZ  United States
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Jimbro, where abouts in Texas are you located? San Antonio here.
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Old 2nd July 2012, 03:41 PM   #12
zman01 is online now zman01  Bangladesh
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apparently the CNC router isn't cutting all too accurately at the moment. All of my parts were almost 1/16" short which compounded into big problems.
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Looks like I'll have to do it the good ol' fashioned way on this one. Time to dust off the hand routers and panel saw.

Cheers,
Steven
And I thought you were going to share listening experiences today...
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Old 2nd July 2012, 04:03 PM   #13
von Ah is offline von Ah  United States
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There must be a way to salvage that wood for another enclosure/driver...
Thanks for the cool video!
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Old 2nd July 2012, 05:14 PM   #14
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There must be a way to salvage that wood for another enclosure/driver...
Some of it could probably be used for a MarKen12.2p build.

jeff
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Old 2nd July 2012, 06:23 PM   #15
jimbro is offline jimbro  United States
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Hi Steven - I'm out in the sticks off highway 6 about 50 mi. NW of Houston. Maybe we'll meet at the Lone Star fest next year. I'm determined to make it.
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Old 3rd July 2012, 03:18 AM   #16
chrisb is offline chrisb  Canada
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yup - it only takes a teeny error in one line of possibly hundreds of lines of program code to mess y'all up pretty good

and of course all the run time simulations in the world won't tell whether the pieces that come of the CNC will actually fit together

then of course there's the "oops, the material's not actually the thickness we thought, or it varies from one sheet to the next in a lift of 40, or even within the same sheet - and only a fraction of a mm is enough "
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Old 3rd July 2012, 04:09 AM   #17
zman01 is online now zman01  Bangladesh
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yup - it only takes a teeny error in one line of possibly hundreds of lines of program code to mess y'all up pretty good

and of course all the run time simulations in the world won't tell whether the pieces that come of the CNC will actually fit together

then of course there's the "oops, the material's not actually the thickness we thought, or it varies from one sheet to the next in a lift of 40, or even within the same sheet - and only a fraction of a mm is enough "
So all in all, there's nothing more reliable than the tried and tested methods of the non-CNC crowd?

Just thinking aloud - since StevenZ has already cut the parts and 1/16" is around 1.6mm, maybe it's worth a shot to glue up the pieces instead of trashing them? Not a perfect Super Pensil, but will be very close? If it's great sounding, then you can always make another one.

Last edited by zman01; 3rd July 2012 at 04:22 AM.
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Old 3rd July 2012, 07:25 AM   #18
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if its only a 16th out that is close enuff to perfect, now if it was 2" short... i'd not worry about it.

dave
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Old 3rd July 2012, 12:32 PM   #19
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It all depends on where that 1/16" is. Personally, I can do better than 1/32" on long cuts on my table saw, but I can't do reliable crosscuts on the end of long boards. And I don't care. I make sure the sides/back/front are a little long and use a trim bit in a router to square things up.

When I cut into a 4x8 panel, I set up the layout so that the end cuts all line up. I then have all of the panels at least the same length. I can get the crosscut dead square, but the length floating by the width of the pencil mark and how even the end I measure from is. I then do the cut with a circular saw with a nice Freud blade in it.

Bob
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Old 3rd July 2012, 05:07 PM   #20
AlanL is online now AlanL  United States
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Please check this video 5 Cuts to a "Perfect" Cross-Cut Sled - YouTube
I use the sled for everything that will fit in it.
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