Subject:
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Re: New Part: x784 Technic Gear Hailfire Droid Wheel
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Fri, 2 Dec 2005 07:19:38 GMT
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Viewed:
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4175 times
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I have a few comments to make about the part in general, and since I wanted to
highlight some lines in this particular sub-part, I’m entering my whole reply
here. Lines 46-55 in this file are listed as triangles, but all have two
identical vertices, so they’re actually lines. Since they’re color 16, I’m
guessing that they actually don’t belong in the file at all. Perhaps they’re
the result of 3 decimal rounding.
In lugnet.cad.dat.parts, Amnon Silverstein wrote:
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3 16 16.02 245.419 28.886 13.508 245.541 28.914 13.508 245.541 28.914
3 16 13.508 245.541 28.914 16.02 245.419 28.886 16.02 245.419 28.886
3 16 14.239 217.258 -28.863 0.0 217.725 -28.863 0.0 217.725 -28.863
3 16 0.0 217.725 -28.863 14.239 217.258 -28.863 14.239 217.258 -28.863
3 16 0.0 217.725 28.862 14.239 217.258 28.862 14.239 217.258 28.862
3 16 14.239 217.258 28.862 0.0 217.725 28.862 0.0 217.725 28.862
3 16 -0.065 245.94 -28.819 16.021 245.417 -28.819 16.021 245.417 -28.819
3 16 16.021 245.417 -28.819 -0.065 245.94 -28.819 -0.065 245.94 -28.819
3 16 13.508 245.541 28.914 -0.065 245.941 28.886 -0.065 245.941 28.886
3 16 -0.065 245.941 28.886 13.508 245.541 28.914 13.508 245.541 28.914
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Additionally, three decimal places definitely isn’t enough in x784s02.dat and
x784.dat, or the calculations are off a little, because I can see fairly obvious
gaps between the segments. Also, the gear teeth primitives won’t work, because
they’re modeled to be placed on a convex surface, so there’s a gap underneath
when put onto a flat surface like you have done. Here’s what I mean:
Note that the gaps visible between the segments are exagerated by the fact that
I have BFC enabled, so the back sides of the surfaces on the far side of the
part aren’t being drawn. This lets the white background show through.
Finally, I’m not sure if you’re aware, but the gear teeth in x784s02 are for the
opposite side of the circle from the rest. This of course doesn’t hurt anything
since the part goes the full 360 degrees, but it seemed a bit odd.
--Travis
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Message has 1 Reply:
 | | Re: New Part: x784 Technic Gear Hailfire Droid Wheel
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| Sorry I missed this in my first reply, but I just noticed. There's a minor modeling glitch that's resulting in extra polygons on one side (but not the other). Take a look at the circled sections (you can just make out the problem via the shading): (...) (19 years ago, 2-Dec-05, to lugnet.cad.dat.parts, FTX)
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