Special:
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[DAT] (requires LDraw-compatible viewer)
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Subject:
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Re: New Part: 3001_d.dat - Duplo Brick 2 x 4
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Fri, 5 Jan 2001 16:29:29 GMT
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Viewed:
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926 times
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In lugnet.cad.dat.parts, Tony Hafner wrote:
> Again, I'm not an expert on naming conventions. But it makes sense to me to
> name a Duplo piece after the corresponding System piece and append it with
> "_d". But if someone more up on this sort of thing has a better idea, by
> all means correct me (not like I could stop you from doing so...)
To find the correct part number, take a DUPLO 2x4 and examine the
underside. There should be a 4 or 5 digit number stamped into the part,
usually on the underside of the top. This is the part number.
> Here is a Duplo 2 x 4, using these recently posted primitives:
> Tore Eriksson's "Studdu2.dat":
> http://news.lugnet.com/cad/dat/parts/primitives/?n=123
> my recently posted "Stud4du.dat":
> http://news.lugnet.com/cad/dat/parts/primitives/?n=125
Someone needs to rename these stud p-files. They don't follow the standard
standard. The next available number for studs is 7. So my suggestion is:
stud7.dat Stud Duplo Open
stud8.dat Stud Duplo Tube Open
stu27.dat Stud Duplo Open (Fast-Draw)
stu28.dat Stud Duplo Open (Fast-Draw)
> When I tried to load a construction using this part into MLCAD, I got a
> missing file error for "stu24du.dat". Seeing that I never referenced this
> file, I assumed that it is an alternate rendering file that is implicitly
> required by the inclusion of the "stud4du.dat" primitive. I cheated and
> simply copied "stud4du.dat" with that filename and got no more complaints.
> But I have no idea how this actually affects anything... I assume it's not a
> good thing.
The "stu2" files are (supposedly) simplified versions of studs, using only
8 polygon sections for the stud, instead of 16. LDraw and MLCad use these
files to speed up drawing (the -FS option for LDraw).
One other important issue, that I just now remembered: an implicit
standard of the stud*.dat p-files is that all stud objects must be 4LDU
tall, with the base at 0 and the top at -4. This is necessary so that
editors/renderers can accurately replace the stud*.dat files with the
studline.dat p-file. Studline.dat has only one command:
2 24 0 0 0 0 -4 0
Substitution of studline.dat is another performance cheat, used by LEdit
and MLCad.
Steve
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Message has 2 Replies:
 | | Re: New Part: 3001_d.dat - Duplo Brick 2 x 4
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| (...) Strange. I named the Scala stud to Stud5.dat, but someone renamed it to StudSc.dat. So I thought StudDu*.dat would follow that new pattern... Please note that there are solid Duplo studs on some Duplo baseplates, even though the most common (...) (24 years ago, 5-Jan-01, to lugnet.cad.dat.parts)
| | | Re: New Part: 3001_d.dat - Duplo Brick 2 x 4
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| (...) I originally thought that the numbers were based on the Lego numbers, but my (admittedly brief) research told me that they didn't, as I found no matches out of about 6 pieces. I realize that parts will often change numbers (how many System 2x4 (...) (24 years ago, 5-Jan-01, to lugnet.cad.dat.parts)
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Message is in Reply To:
| | New Part: 3001_d.dat - Duplo Brick 2 x 4 [DAT]
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| Again, I'm not an expert on naming conventions. But it makes sense to me to name a Duplo piece after the corresponding System piece and append it with "_d". But if someone more up on this sort of thing has a better idea, by all means correct me (not (...) (24 years ago, 4-Jan-01, to lugnet.cad.dat.parts)
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