Now I have 2002, and am not sure if this is possible yet. I tried it with
R13, 14, if not others.
Trying to draw (commonly manufactured) tubes (hollow) like an exhaust
system.
Something will not compute. Maybe something about multiple planes. Can't
remember if at the pedit stage, or extrude, or how to work around.
I'm trying:
Drawing contiguous straight lines joined at ends in multiple planes, then
adding radii, join them all together with Pedit, to use as a pathcurve.
Then drawing circle(s) perpendicular at the end, and polyline as a pathcurve
to extrude.
I'd love to get to the bottom of this.
At least as far up as 2000, it won't work, i.e., extrude won't work along a 3D
polyline. You have to draw individual circles at one end of each line or arc
and extrude those. Which in turn requires a lot of manipulation of the UCS.
You can re-use the circle for an adjacent line and arc if you
0 , which causes AutoCAD to not delete the circle after using
it. I usually run with delobj off, because going back and retracing your steps
(to correct a mistake) is easier if the primitives are retained.
-Mike-
There is a TUBEX.LSP available on the Net which extrudes a circle along of lines
drawn
in 3D space. Lines must not be polylines, that's a condition of this routine. I
use it
(the lisp) for drawing different pipes in 3D quite often. Let me know if you have
difficulties finding the lisp on the Net. I will E-mail you one.
Regards,
Igor.
I better clarify that I'm no 3D wiz before continuing. I remember
extruding a closed shape (polyline) along a polyline. So long as the
object being extruded was perpendicular to the path, and the path was on
one plane, I didn't have any trouble with it.
Hopefully that's adding to the conversation. ;)
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