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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Mon, 28 Feb 2005 13:39:28 GMT
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Viewed:
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1527 times
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In lugnet.cad.dev.org.ldraw, Stefan Gustavson wrote:
> > 1 LDU = .397 mm
Hmm. Where did that figure come from? I've been using 1 LDU = .4mm for quite
awhile now...
> I was wondering about this number in that otherwise very
> explanatory and very clear figure when I saw it in the
> Brickfest presentation. I would strongly argue that Lego,
> being a Danish creation, is in fact metric by design,
> and that 1 LDU is actually *exactly* 0.4 mm.
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
definitely don't recall the source.
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
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Message has 2 Replies:
 | | Re: No mention of scale in file format doc
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| (...) 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 (...) (20 years ago, 2-Mar-05, to lugnet.cad.dev.org.ldraw)
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Message is in Reply To:
| | Re: No mention of scale in file format doc
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| (...) I was wondering about this number in that otherwise very explanatory and very clear figure when I saw it in the Brickfest presentation. I would strongly argue that Lego, being a Danish creation, is in fact metric by design, and that 1 LDU is (...) (20 years ago, 26-Feb-05, to lugnet.cad.dev.org.ldraw)
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