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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Sat, 26 Feb 2005 17:02:12 GMT
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Viewed:
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979 times
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In lugnet.cad.dev.org.ldraw, Stefan Gustavson wrote:
> > 1 LDU = .397 mm
>
> 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.
>
> Isn't that what should be stated in this important,
> semi-official standards defining document?
> 0.4 mm happens to be quite close to 1/64 inch, but
> it's clearly different enough to matter.
>
> An accurate metric caliper just told me that to within
> an accuracy of a tenth of a millimeter, 16 stud spacings
> on a baseplate measure 128 mm, definitely not 5" = 127 mm,
> which would be the distance if 1 LDU = 1/64". I thus have
> empiric data to support my case. :)
>
> Stefan Gustavson
You're probably right. The strictest definition is 1 LDU equals 1/20 the width
of a 1x1 brick (whatever that measurement turns out to be).
-Orion
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Message has 1 Reply:
 | | Re: No mention of scale in file format doc
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| (...) I beg to differ. The width of a 1x1 brick is not the same as the spacing between two stud centres. Bricks have a small gap between them, whereas studs are very accurately placed on any brick with more than 1 stud. The LDU unit should be (...) (19 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
|
| (...) 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 (...) (19 years ago, 26-Feb-05, to lugnet.cad.dev.org.ldraw)
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