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Simple Surfacing Problem

I'm not a diehard fanatic solidworks fan, i know it has a lot of limitations, it's tools are limited compared to proe but they are simple and effective.
Proe certainly is superior to solidworks, but it's the law of nature (a=F/m ). the heavy weight champion is too heavy to accelerate on development compared to solidworks.

2651450139_8361de1f7c_o.png
 
Can You show the pic of the mesh for this surfazce. I assume SW makes this as 3nd boundary surface, where mesh will concentrate in one corner
 
here's the mesh curves:
2651537033_6a49e41275.jpg

I'm not an industrial designer, but i'm really eager to learn class A surfacing in proe.what kind of characteristics they have? i've read they are G3 at boundaries.but i dont know how to enforce a G3 condition in proe. can somebody post a proe class A surfacing tutorial?
 
> i think they have lost the surfacing game.


> the heavy weight champion is too heavy to accelerate
> on development compared to solidworks.


Another Eggspurt Testimonial on the internet.
Why is it always the neophytes that make the grandiose statements and
want to talk about development like this stuff isn't all going on thiry,
forty even, years old, being repackaged, trickling down to $5K programs
where we try to figure it out?


Consult with your betters; Paul Salvador (www.zxys.com), Mark Biasotti
(www.solidworks.com), Ed Eaton (www.dimontegroup.com), see if they
agree and get back. Paul and Mark both know SW and Pro/E well, Ed
at least knows something about complex shape modeling. All are well
beyond being awed by a one button blob, as "effective", or not, as it
may be.


Are you going to post the neutral or just litter the forumwith pics?
I'd really like to see the surfaces, get some idea of what algorithms
are being used, assess quality, etc. It looks a lot like a patch
algorith I've seen used by some hull design programs. Their quality
wasn't that good and the pics indicate SW might not be either.
Edited by: jeff4136
 
I think that the shape can also be acheived in SolidWorks using their Sweep command. Not sure how it will compare to ProE though. From what I remember we used it to make rugby ball shapes and then used the same technique to generate shapes like the one in this post.


I only have SW at home but I'll try and give it a go tonight and if I get anywhere I'll postthe filetomorrow.


I'll admit Bart that I don't know about the C2 and G2 and all that. I want to learn though. I'm gonna read the links that Jacek posted and hopefully begin to understand.


The examples have been brilliant, very educational. Thanks guys!!!
smiley32.gif
 
Thank you. Now anyone that's interested can evaluate it within the context of
their own needs or expectations.


For my part; I think it's an interesting result, not quite what I was expecting.
Better. I like how they handle the curvature transitions on the corner edges.
If you can control it well enough to, at least, make it an uninflected convex
shape it's pretty nifty for what it is.


I don't mince words. You either contribute something useful or you don't.
We either learn from one another or we don't. That's about the extent of it.


Thanks again.
.
 
Hi Guys,


I've attached some files to show my results from SolidWorks in SW, IGES and STEP formats. I couldn't get it to work quite as I remember using the Sweep command though I didn't have much time. I did manage it using the SW loft command. Let me know what you think.


2008-07-10_050119_prt0001.zip
 
Alias Studio has an automatic trim back function sort of like that solidworks example. Not many people use it from what I've seen.

And Paul Salvador has answered many of my solidworks questions on another board... The cool part about him is you can describe a function in Pro/ENGINEER and he can tell you if SW does that or not.... or offer a similar function, technique or workaround in Solidworks.
Edited by: design-engine
 
Michael,


> 2008-07-10_050119_prt0001.zip


That's fine for what it is; the product of a blend function with
a singular edge just like you get from a Boundary Blend.


The next logical step is to go from "I can get ~something~ that
looks pretty nice" to determining if it satisfies more specific,
to whatever your intent might be, criteria:
1. Is it the shape you want? If not, can can you get it; i.e. if
you don't want the peaky ridges radiating out to the corners or
want a more, or less, pronounced slope into the corners?
2. Will the singular edge be detrimental to downstream process?
(a) Can you offset the shell? (With a 'margin of safety'. Ideally,
any quilt should offset to a large percentage of R(min).)
(b) Will it cause any grief during machine code creation, finite
element meshing, maybe just getting drawing views without any
'dropped' silhouette edges?


The patch function (a.k.a. Fill) surf has the benefit of eliminating
the singularity but, like a blend function, is working outside it's
comfort zone with the range of boundary conditions presented by that
shape. For my money there's little practical purpose trying to
trivialize it into a one button solution and time is better spent
getting a handle on more sophisticated techniques that won't limit
your possibilities.
 
Ah reside in the grett stett of Texas. "Work" (in my best Maynard G. Crebbs imitation); noindustry, just aCAD monkey which I came to late in life (and am still learning the hard way) after gettingtoo oldto thinkbeing a general aviation mechanic was fun and trying to be 'management'proved to be less fun. I enjoy working with things technical much more than working with people.
 
jeff4136 said:
Simple? No.
smiley2.gif

Studying variations of that will introduce you to many of
the basic concepts and some of the finer points you'll need
to come to grips with for 'complex shape' modeling.
.
2008-07-07_175701_rect_dome--wf2--.prt.zip
.
Click to expand...
Is there a chance anyone has the above .zip file? There were a couple of grouped features showing various approaches to the design of the rectangular dome - mostly some good use of VSS and also use of the 'toupee' method.

Thanks.
 
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