Subject:
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Re: No mention of scale in file format doc
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Newsgroups:
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lugnet.cad.dev.org.ldraw
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Date:
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Wed, 2 Mar 2005 00:20:27 GMT
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Viewed:
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1177 times
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In lugnet.cad.dev.org.ldraw, Steve Bliss wrote:
> My understanding is that the bricks aren't measured closely, but the *molds*
> are! Because of the (slight) shrinkage that occurs post-molding, lego parts
> aren't actually a nice neat size.
>
> Steve
Well, yes, and no. The bricks are not nearly as precise as the molds,
but the dimensional tolerances for parts must certainly be a lot
tighter than the difference between 1/64" and 0.4 mm. That difference
is almost a full percent, so there is absolutely no doubt about this:
1 LDU is certainly not 1/64".
1 LDU is, however, quite likely to be exactly 0.4 mm.
I challenge anyone to dispute this. It is not a fact, it is just
my best guess, but in the true spirit of science I put that best
guess into writing:
http://www.itn.liu.se/~stegu/lego/LDUlength.pdf
(Don't worry about my mental health, this was written for
fun. But the *results* are meant to be taken seriously.)
Stefan
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Message has 1 Reply:
Message is in Reply To:
 | | Re: No mention of scale in file format doc
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| (...) Hmm. Where did that figure come from? I've been using 1 LDU = .4mm for quite awhile now... (...) heh. Don't be *too* sure about that, I seem to remember seeing some early evidence about measurements in English units. But it's a vague memory, I (...) (20 years ago, 28-Feb-05, to lugnet.cad.dev.org.ldraw)
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