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Subject: 
Re: Beveled flex tubing
Newsgroups: 
lugnet.cad
Date: 
Tue, 24 May 2011 15:09:28 GMT
Viewed: 
19277 times
  
In lugnet.cad, Philippe Hurbain wrote:
In lugnet.cad, Ross Crawford wrote:
In lugnet.cad, Timothy Gould wrote:
In lugnet.cad, Larry Pieniazek wrote:
Has anyone modeled a bit of flex tubing that has beveled ends? I think I know
what I need to do to model it but actually doing it may be beyond my patience,
(but maybe I'm using the wrong tool, working with quads in MLCad is a bit hard)

Thanks.

For anything with radial symmetry a little perl script is the right tool :)

Or alternatively, you could use ring/cone/cyl primitives, should be lots easier
than doing individual quads.

Larry, would you have a picture or drawing of what you need exactly?

Philo

I was looking at trying to use your cutting tool, actually,.. stretch a
4-4cyli.dat to a long enough length (somehow?) and then just use a big quad
tilted to 45 degrees as the "blade". But I can't quite suss out how to do it,
being somewhat clueless at using it.

My other approach (which I'm working on now) is to take a ring's worth of
primitive, stretch it to the right elliptical size, then tilt it, then use the
ring's vertex values to stretch the quads that make up a cylinder to intersect
it. I can get the ring or cylinder stretched by manipulating its rotation matrix
as an embedded part, but then I don't have the endpoints (unless I inlined it?)
If I use the primitives that make up the ring, I can tilt them but then it's not
stretched right so the intersections don't work

I don't have a picture or drawing of what I need, but it's simple to describe...
take a bit of flex tubing and slice one end off at an angle instead of
orthogonally, that gives the basic shape I want (in the model I would butt two
of these together as the tubing is sliced off on both ends). I'm using 60
degrees because that makes the math easier (the ellipse gets stretched to 2:1)
but in real life the cuts I made are more like 45 degrees.



Message has 1 Reply:
  Re: Beveled flex tubing
 
OK, I think what you miss is the 4-4cyls.dat primitive, add it to a regular 4-4cyli and you basically have what you need. For the tip, you need a slanted primitive (ring and edges). There is a tutorial (unfortunately in French) here (URL) , (...) (14 years ago, 24-May-11, to lugnet.cad)

Message is in Reply To:
  Re: Beveled flex tubing
 
(...) Larry, would you have a picture or drawing of what you need exactly? Philo (14 years ago, 24-May-11, to lugnet.cad)

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