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12PI horn

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dj-panoramix View Drop Down
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    Posted: 28 March 2010 at 3:27pm
i did get the plan from wayne's forum, but all is in inches, anybody did work it in mm ?
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djeddie View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote djeddie Quote  Post ReplyReply Direct Link To This Post Posted: 28 March 2010 at 4:13pm
Just times the inches by 25.4 surely.
Chas n Dave : it's like Drum and Bass but with beards.             E=mc² ±3dB
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 28 March 2010 at 6:11pm
look for a good online calculator that'll accurately do the full lengths for you.. just multiplying the single inch by 25.4 (not really saying you're wrong eddie..).. that is a rounded down number and may put lengths out by a few mm by the end.. if that makes sense.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Saul Quote  Post ReplyReply Direct Link To This Post Posted: 28 March 2010 at 6:24pm
25.4 is accurate enough 
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dj-panoramix View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dj-panoramix Quote  Post ReplyReply Direct Link To This Post Posted: 28 March 2010 at 6:51pm

i allready done that, but the problem is that give me strange lenght like 639,445 so if i take let say 639,4 and make X piece like that i get Z mm wrong at the end of the thing, you know what i mean ?craving, more info about that online calculator you're talking about ? i just found some who make x25,4.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote _djk_ Quote  Post ReplyReply Direct Link To This Post Posted: 29 March 2010 at 2:04am
Buy a tape with both inches and mm on it, cost you about $6.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 29 March 2010 at 2:13am
ok yeah fair enough i can't find one that'll do closer than that. i'm just sure i've heard of people being caught out a bit by calculating long distances based on one rounded down unit.

i'm sure if the guys say 25.4 is good enough it definitely is.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dj-panoramix Quote  Post ReplyReply Direct Link To This Post Posted: 29 March 2010 at 11:52am
Originally posted by _djk_ _djk_ wrote:

Buy a tape with both inches and mm on it, cost you about $6.
 
do you have a link where they sell that ? i can't found that here.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rich, ind.st Quote  Post ReplyReply Direct Link To This Post Posted: 29 March 2010 at 1:33pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Quantum Sounds Quote  Post ReplyReply Direct Link To This Post Posted: 29 April 2010 at 8:21pm
Originally posted by dj-panoramix dj-panoramix wrote:

Originally posted by _djk_ _djk_ wrote:

Buy a tape with both inches and mm on it, cost you about $6.
 
do you have a link where they sell that ? i can't found that here.


you'll strugle to find one of them in france, but all uk one's have inches andf cm's
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