Subject:
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Re: Anyone working on monorail tracks?
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Mon, 24 Oct 2005 09:26:53 GMT
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Viewed:
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3675 times
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In lugnet.cad.dat.parts, Darrell Urbien wrote:
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The info scans are great because they show how the parts go together, as well
as the undersides.. Unfortunately they’re not so good for measuring because
the extra parts pushed the rail out-of-flat (the side face is not perfectly
parallel to the glass of the scanner).
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I tilted the underside shots to show how the attachment points affect the
framework, because it wouldn’t be possible to see in a head on-shot (which would
be pretty warped anyways).
The distribution of the framework is excactly the same horizontally as in the
straigt version, just displaced vertically to follow the curve, so that would
be the best reference you can get - you should even consider copying it
directly. Have you been able to download it yet?
I wouldn’t count on that one being anything near precise.
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Question: are both parts the same radius? IOW if you reversed the concave one
and placed it on the convex one, are they exactly the same arc? If so (and it
would make sense they were the same) I can use the instruction scan as a
reference.
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I’m not sure: the parts is bent a bit out of shape when they’re not locked in a
bigger structure (and I’ve been clever enough to dissassemble them). Please use
the two 600dpi pictures to map out the curve: they should be the best reference
you can get.
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I’ll see if I can knock out a rough mock up and you can tell me if the
geometry looks right. We can work out the details (the track, the support
mounts, etc.) later.
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Thanks, I really appreciate what you’re doing here.
Cheers NB
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Message has 1 Reply:
 | | Re: Anyone working on monorail tracks?
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| (...) Well, we traced over them today and the two parts do not match each other (i.e. they have slightly different radii and are not complimentary/mirror images of one another). Maybe this is true, but I suspect it's just the angle of the part in (...) (19 years ago, 25-Oct-05, to lugnet.cad.dat.parts, FTX)
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Message is in Reply To:
| | Re: Anyone working on monorail tracks?
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| Thanks for that, I'll see what my students can do. Couple of questions/comments: The info scans are great because they show how the parts go together, as well as the undersides.. Unfortunately they're not so good for measuring because the extra (...) (19 years ago, 21-Oct-05, to lugnet.cad.dat.parts, FTX)
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