We are designing a split shell gallery sections on
a tall tray column and plans to use a single butt weld
with backing strip on the longitudinal seam and a groove
weld on the flat plate ring closure on both ends of the
gallery section shell.
Is this type of weld on a Category A joint...
I'm designing an aluminum pressure vessel. Shell and
head material is SB209-5083-O. Shell weld is Type 1
and torispherical head is seamless. There are no radiogragraphy for this vessel. What efficiency will
I use for the required minimum thickness calculation
for the head?
I'm using a 0.70...
Set variable pellipse = 1 and draw a full ellipse
as a polyline. Draw a line along the major axis
of the ellipse. Trim the ellipse and line, then
use pedit to make your polyline profile. Revolve
the profile 360 degrees and you'll have your
ellipsoid.
You can use AutoCAD's built-in customization
programs to create the calculation routines
you need. Have used this method to do pressure
vessels calculations (sheel/head thicknesses)
and then automatically draws the top, elevation
and section view of the pressure vessel.
Lee H,
Have seen a demo routine at Cadalog.com that draws
a typical pressure vessel in 3D (filename 3DPV.vlx).
http://www.freecadapps.com/shareware.php
Look for the file under AutoCAD General->3D tools.
Smokehouse,
Can the drawing of the mold/dies be done
parametrically in 2D? If so, have you tried
writing a lisp program to do the task. I've
created a demo program that draws pressure
vessels/pipe flanges in 3D. I don't know if
the concept can be applied to your situation...
Depends on the complexity of the lisp
functions used. For basic functions,
I've tried a release 2.6 and it works
in A2000+.
Why don't you give it a try or if you
can send me a copy, I'll take a look
at the routine and make it work in A2K
(if it's not compiled).
Enmail...
DanielHyde,
Could you send me a copy of the routine.
I may be able to have a better understanding
of what the problem is all about.
Email: dparc7491@yahoo.com
Are you referring to Visual Lisp functions?
These functions are patterned after VBA but
the format is similar to Autolisp.
You can also use plain AutoLisp (see the
function "getfiled") which gives the user
the flexibility to look for the directory
where the xref drawings are located.
AlexDring,
I'm currently looking for sample drawings of
structural details used in the industry. I'm
working on a lisp program to do structural
detailing using plain Autolisp. Would it be
possible to share the structural details that
you do in exchange for a complimentary copy of...
Yes you can do that with a lisp
program, but may not be worth it
(time spent in writing routine)
for single use only. It's good to
do it via lisp when you are adding
additonal text to multiple instances
in mutltiple drawings.
If you don't want the viewport/paperspace
approach, what you need is a lisp routine
to automate what you're currently doing.
The detailed view will be in Model Space
not in Paperspace.
