Subject:
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Re: Highly confused about Library Updates for MLCad
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Newsgroups:
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lugnet.cad
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Date:
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Tue, 16 Oct 2007 19:15:04 GMT
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Viewed:
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2472 times
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In lugnet.cad, Jim DeVona wrote:
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In lugnet.cad, Christopher Deck wrote:
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For years I have been using MLCad, and I am grateful for the great service
and support of the software. I recently installed the official parts updates
for MLCad offered at the relating website. But now suddenly I have 2 1x1
round plates. The standard 4073 one and a new 6141. May I ask what is the
need for this second one?
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According to comments in my copy of the 6141 file,
0 // Part 6141 is the counterpart of 4073. Visually, the two parts seem
0 // identical. This file is provided to make it easier to locate part files
0 // when using the numbers used in LEGO Digital Designer.
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So, I assume 4073 remains the appropriate part to use in most cases.
From 50746’s comments:
0 // Part 50746 is the counterpart of 54200. Visually, the two parts seem
0 // identical. This file is provided to make it easier to locate part files
0 // when using the numbers from other sources.
0 // 54200 is used for moulding opaque parts, 50746 for transparent parts.
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Which is news to me, too. I think I’ve just used 50746 wherever I wanted to
model this part. Anyone care to explain to us both what makes one instance
more suitable than the other for transparent parts?
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both are indicated as 45 degree slopes although the slope is only roughly 30
degress.
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I seem to recall a discussion somewhere about how the angles in many part
names are incorrect or at least approximate, but I can’t find the link right
now. I don’t remember the conclusion, but my protractor agrees that this
part’s surface slope is much closer to 30 than 45 degrees.
Jim
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It is quite possible that one number is for transparent bricks and the other is
for regular solid ABS. IIRC they are different molds. The LDraw parts library
tries to be as inclusive as possible.
Tim
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Message has 1 Reply:
 | | Re: Highly confused about Library Updates for MLCad
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| (...) Indeed, while opaque parts are made from ABS, thansparent ones use polycarbonate. These plastics have different behaviour that require slightly different molds to get the tight tolerances you appreciate from LEGO bricks... Philo (17 years ago, 17-Oct-07, to lugnet.cad, FTX)
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Message is in Reply To:
| | Re: Highly confused about Library Updates for MLCad
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| (...) According to comments in my copy of the 6141 file, 0 // Part 6141 is the counterpart of 4073. Visually, the two parts seem 0 // identical. This file is provided to make it easier to locate part files 0 // when using the numbers used in LEGO (...) (17 years ago, 16-Oct-07, to lugnet.cad, FTX)
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