Subject:
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Re: Part naming for technic liftarms vs. beams
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Newsgroups:
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lugnet.cad
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Date:
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Tue, 19 May 2009 20:33:08 GMT
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Viewed:
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7136 times
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In lugnet.cad, Kevin L. Clague wrote:
> Hi gang,
> I want to start by saying thanks to all those involved in creating parts and
> managing the parts library. We toolsmiths would not have a job if it were'nt
> for the LDraw parts library.
>
> I have a question about naming conventions with respect to technic liftarms
> vs. technic beams.
>
> I would like to start with comparing these two parts:
>
> 32523.DAT "Technic Liftarm 1 x 3 Straight"
> http://www.peeron.com/inv/parts/32523?img=20748
>
> 32524.DAT "Technic Beam 7" http://www.peeron.com/inv/parts/32524?img=21841
>
> The only difference between these two parts is the number of pin holes. Can
> we rename the "Liftarm 1 x 3" as "Technic Beam 3"?
>
> Secondly I'd like to compare of two studless technic parts that are L shaped.
> The first one is the smaller L and the second the larger L. The smaller L has
> one axle hole, and the rest pin holes. The larger L has all pin holes. They are
> much more similar than different, yet they are named differently. The smaller
> is a liftarm, and the larger a beam. Did this just happen, or is there a reason
> for the differences?
>
> 32140.DAT "Technic Liftarm 2 x 4 L Shape"
> http://www.peeron.com/inv/parts/32140?img=20624
>
> 32526.DAT "Technic Beam 3 x 5 Bent 90"
> http://www.peeron.com/inv/parts/32526?img=302
>
> The reason I care about this is that I just finished adding "Bill of
> Materials" (BOM) support to LPub 4 (unreleased). Parts displayed in BOMs are
> sorted by general part names. For example, all the "Technic Liftarm" are
> grouped and then sorted by size, and the "Technic Beam" are grouped and then
> sorted by size. This leaves the liftarms above in a different group than the
> beams. Not a big deal, but it would be nice if they could all be grouped
> together.
>
> If it is possible for me to make this change, how would I do so?
>
> Kevin
Many of the Technic "beams" got re-cycled through the Parts Tracker in 2009-01
for primitive optimisation and BFC reasons. I took the opportunity to implement
something that we had been talking about for some time - to name these types of
parts "Beams" (whether thick or thin), but to add a "Liftarm" qualifier where
the end hole is an axle hole.
As the official library stands after 2009-01, there are only 4 files that are
still called liftarms, and only because they have not been updated recently:
32523.dat Technic Liftarm 1 x 3 Straight
32079.dat Technic Liftarm 1 x 9 Offset Cross
32140.dat Technic Liftarm 2 x 4 L Shape
32173.dat Technic Liftarm 2 x 7 with 2 Ball Joints
all except 32173 (which is neither a beam nor a liftarm) are currently on the
Parts Tracker with revised (but still imperfect) descriptions:
They just didn't quite make it into 2009-01, but I had to draw a line somewhen
and concentrate on the update rather than certifying more parts.
Would it help you to know that these should be released in 2009-02 sometime this
summer?
Chris
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Message has 1 Reply:
Message is in Reply To:
 | | Part naming for technic liftarms vs. beams
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| Hi gang, I want to start by saying thanks to all those involved in creating parts and managing the parts library. We toolsmiths would not have a job if it were'nt for the LDraw parts library. I have a question about naming conventions with respect (...) (15 years ago, 19-May-09, to lugnet.cad)
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