Subject:
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Re: Circular Primitives
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Newsgroups:
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lugnet.cad
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Date:
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Tue, 10 Apr 2001 11:10:08 GMT
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Viewed:
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814 times
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In lugnet.cad, John Kennedy writes:
> In lugnet.cad, Steve Bliss writes:
> > In lugnet.cad, John Kennedy wrote:
> >
> > > hi,
> > >
> > > I have been using mlcad for just over two months, so i'm not fully clued up
> > > yet. I need to make a part which is a wide diameter cylinder. I have managed
> > > to do so by creating a 24 sided polygon and extruding it. However due to its
> > > size, the straight sides are plainly visible. Is there any way to produce a
> > > 'pure' circle and then extrude it, or to create a cylinder in one go?
> >
> > You can try using the 48-segment primitives in the ldraw/p/48 directory.
> > The cylinder primitive is 1-4cyli.dat. The easiest way to code this up is
> > in a text editor, but you should be able to do it through MLCAD as well.
> >
> > The code to make a complete cylinder is:
> >
> > 1 16 0 0 0 R 0 0 0 H 0 0 0 R 48\1-4cyli.dat
> > 1 16 0 0 0 0 0 R 0 H 0 -R 0 0 48\1-4cyli.dat
> > 1 16 0 0 0 -R 0 0 0 H 0 0 0 -R 48\1-4cyli.dat
> > 1 16 0 0 0 0 0 -R 0 H 0 R 0 0 48\1-4cyli.dat
> >
> > Where R is the radius of the cylinder, and H is the height.
> >
> > Steve
>
>
> Thanks for that, i managed to do that and it looks a lot better. Just one
> more thing for now, I take it that to make ends for the 'tube' I use
> '1-4disc.dat' but how do i manipulate it, whenever I change any values it
> goes haywire. I'd be grateful if you could email me with the sort of thing
> above.
>
> thanks
>
> John
Don't worry about replying to my previous post, I have downloaded Jonathan
Wilson's excellent program and it works fine.
thanks for all the help.
John
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Message is in Reply To:
 | | Re: Circular Primitives
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| (...) Thanks for that, i managed to do that and it looks a lot better. Just one more thing for now, I take it that to make ends for the 'tube' I use '1-4disc.dat' but how do i manipulate it, whenever I change any values it goes haywire. I'd be (...) (24 years ago, 9-Apr-01, to lugnet.cad)
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