Subject:
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Re: Unofficial part: 2852 Technic Connecting Rod
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Wed, 19 May 1999 20:45:02 GMT
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Viewed:
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866 times
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Fredrik Glöckner <fredrik.glockner@bio.uio.no> wrote in message
news:m3ogjh8f3z.fsf@sade.uio.no...
> "John VanZwieten" <john_vanzwieten@email.msn.com> writes:
>
> > The 1/4 cylinder wedge thingy connecting the lower stud with the arm
> > doesn't join the stud quite right. It should extend further down
> > around the stud.
>
> Thanks! I'll check it out when I get home.
>
> > There are a couple edge lines missing on the side of the arm. Take a
> > look in wireframe from an oblique angle and this will be obvious.
>
> Do you mean where the wedge thing meets the rectangular rod, on both
> sides? Those edges were left out intentionally, because I have really
> modeled a curved surface with two plane ones. There isn't supposed to
> be an edge in the real part at this place; there is simply a gradually
> curving surface. This is much like on the "front" of the part, where
> the stud meets the rectangular rod. At the front, I used a 1-4cyli.dat
> to model the curved surface, and I left out the edge where the
> 1-4cyli.dat meets the rod.
>
> Here's an illustration:
>
> http://www.math.uio.no/~fredrigl/technic/ldraw/2852-ill.gif
>
> The white arrow points at where I've intentionally left out an edge.
The edge I'm talking about is parallel to the "left-out" edge to which you
point, to the right and down a little. It should start where the top stud ends
and extend up and to the right. If you look in wireframe mode, you will see
the piece is not entirely enclosed by edges.
> I think the edges should be left out at the sides of the rod. What do
> you guys think?
For modeling a curved surface you definitely don't want to put an edge line if
the curve begins smoothly from the flat surface. You might consider modeling
this curve from two quads rather than 1, though, or even better use a
1-8cyli.dat so it looks nicely rounded in POV-Ray.
-John Van
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Message has 1 Reply:
 | | Re: Unofficial part: 2852 Technic Connecting Rod
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| (...) Ah, yes. I saw it at once when I got home and pushed "wireframe mode". Thanks for the hint. (...) Yes, I should probably do that. I'll let the project rest for a couple of days right now, and see if I can get back to it later. This part is (...) (25 years ago, 20-May-99, to lugnet.cad.dat.parts)
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Message is in Reply To:
| | Re: Unofficial part: 2852 Technic Connecting Rod
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| (...) Thanks! I'll check it out when I get home. (...) Do you mean where the wedge thing meets the rectangular rod, on both sides? Those edges were left out intentionally, because I have really modeled a curved surface with two plane ones. There (...) (25 years ago, 19-May-99, to lugnet.cad.dat.parts)
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