Subject:
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Re: 2867.dat Curved 9V Track - reddy
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Sat, 19 Apr 2003 17:23:17 GMT
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Viewed:
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1647 times
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In lugnet.cad.dat.parts, Steve Bliss writes:
> In lugnet.cad.dat.parts, Ludo Soete writes:
<SNIP>
> Very nice! Good work on this. :)
>
> However (I always seem to have a 'however' ;), I'm not sure about your
> choice of the zero-point and the orientation of the part. The point you
> chose was very logical, but it might not be practical. In relation to
> 'normal' stud-based positioning of parts, your centerpoint is at an
> non-integer location. When using the part, people will have to:
> add the part to their model
> set their center of rotation
> move the part in the +Z one radius of the track-circle (I don't remember
> the turning radius of lego track off the top of my head, sorry)
> Rotate the part 11.25 degrees
>
> Once they've done this, the edge of the track will be aligned with the studs
> in the rest of their model. Then they place the track where it needs to go.
>
> I think (this is IMO, not hard facts) that it would be better to position
> the part so that one end of the track was aligned along an axis.
>
> Let me know what you think -- I'm a little tired right now, my analysis may
> be incomplete.
>
> Steve
Hi Steve,
I just made a quarter curved track using the new 2867.dat file. It works
pretty good as it is now. I placed first a straight track, then added a
curved one. After only a few moves, the curved track was positioned where it
should be. I didn't set my center of rotation, i rotated the curved track
along the Y- axis. The first track at a rotation angle of 11.25 degrees, the
following with increments og 22.5 degrees. So i think that i can leave the
rotation point where it's now, at the center of the fixation hole in the
center sleeper.
A possible help could be the idea from Tore Ericksson see :
http://news.lugnet.com/cad/dat/parts/?n=4622
http://news.lugnet.com/cad/dat/models/?n=1984
http://news.lugnet.com/cad/dat/models/?n=1985
or a plug-in for MLCAD, as there's one for LLDesignPad, created by Niels
Karsdorp see:
http://home.hetnet.nl/~niels-karsdorp/ldraw/utils.htm
Any comments are welcome,
Regards,
Ludo
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Message has 1 Reply:
 | | Re: 2867.dat Curved 9V Track - reddy
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| (...) 9V curve part. I just did a quick test using the mpd posted by Ludo and added the filename to PluginTrackParts.ini for the curve in the 9V section and the parts were placed as I expected. Now I don't have to make an update to my plug-in, any (...) (22 years ago, 22-Apr-03, to lugnet.cad.dat.parts)
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Message is in Reply To:
| | Re: 2867.dat Curved 9V Track - reddy
|
| (...) Very nice! Good work on this. :) However (I always seem to have a 'however' ;), I'm not sure about your choice of the zero-point and the orientation of the part. The point you chose was very logical, but it might not be practical. In relation (...) (22 years ago, 19-Apr-03, to lugnet.cad.dat.parts)
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