Somebody is designing a ply boat with PROE ?

Hello all,

I'am building a smal sail boat made of plywood-epoxi construction. I am
trying to model the boat in proe, but I am finding a lot of troubles. For
instance I model the sections with curves (2D poligonal curves), and then I
create 3D splines using the corresponding points in the sections (the
vertexes of the poligonal lines that made the sections). After that I use
this 3D splites to create a sheetmetal part using two curves, and then I
change the attributes for making this metal part developable (excuse me but
I use PROE in spanish and I do not know the exact translations of the
commands). This part has a lot of troubles that I think that can be solved
if I could touch the parameters of the 3D spline (the tension), but I do not
find the way to do it. Somebody has tried anything similar ??

Thanks in advance,

--
_____________________________________________

Diego Peinado Martín
_____________________________________________
_____________________________________________

 

: Hello all,
:
: I'am building a smal sail boat made of plywood-epoxi construction. I am
: trying to model the boat in proe, but I am finding a lot of troubles. For
: instance I model the sections with curves (2D poligonal curves), and then I
: create 3D splines using the corresponding points in the sections (the
: vertexes of the poligonal lines that made the sections).
<snip>
Diego, these curves you created would be perfect for boundary surfaces, using two
long curves for the first direction and all of the rib section curves for the
second direction. With surfaces in the shape of your planks, you could then use
'flatten quilt' (Insert>Advanced>Flatten quilt) to get your pattern for cutting
the plywood. In preparation, you need to make point on the surface that flattening
will stay tangent to, usually at the widest point of surface. To make a separate
part of each of these flattened quilts, use 'copy geometry' to place only that
geometry in a part (Insert>Shared data>Copy geometry from other model). I think
you will avoid the problems you made for yourself trying to use sheetmetal to
create patterns.

David Janes

 

Thanks David, you have explained quite clear how to do it. I tried to use
surfaces, but I did not use the copy geom feature to translate the planks to
different parts. It's a very good trick. Thanks a lot, bye

--
_____________________________________________

Diego Peinado Martín
INTRAME S.A.
_____________________________________________

Fábrica: Crta. Villabañez Km. 0.8
Valladolid, 47012
34 983 299 800
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34 915 776 008
_____________________________________________

 

I have used the same method for creating fabric patterns, and it works well.
However, be careful because I found a couple of cases where flatten quilt
produced a distorted shape. I strongly recommend testing the fit with a
paper/cardboard mockup before cutting the actual material.

Dave

 

NB
The following comments from David Geesaman appeared on Google Groups in their
archive of this NG's discussion. Please note that anything contributed at Google
Groups comp.cad.pro-engineer is contributed at a terminus point, to an archive.
Your comments never make it to the ongoing discussion. They merely augment an
archive, like adding your comments to the Dead Sea Scrolls, as if they were part
of it. If you wish to contribute to the ongoing discussion at
comp.cad.pro-engineer, you need a news feed through an isp or an independent,
subscription news service, available with an internet connection.

David Janes
I have used the same method for creating fabric patterns, and it works well.
However, be careful because I found a couple of cases where flatten quilt
produced a distorted shape. I strongly recommend testing the fit with a
paper/cardboard mockup before cutting the actual material.

Dave

 

Is this 'Google' stuff directed to me? I think you once posted something
about this before. I don't use Google, I use Newscene. Perhaps there is a
propagation issue with your Cox service.

Dave

-------------------------
Path:
newscene.com!newscene!newscene!novia!novia!sequencer.newscene.com!not-for-ma
il
From: "David Geesaman" <>
Newsgroups: comp.cad.pro-engineer
Subject: Re: Somebody is designing a ply boat with PROE ?
Date: 3 Oct 2003 07:27:13 -0500
-------------------------

 

: Is this 'Google' stuff directed to me? I think you once posted something
: about this before. I don't use Google, I use Newscene. Perhaps there is a
: propagation issue with your Cox service.
:
My comments were directed to the group, partly to find out if anyone else was
missing your comment in this thread. But I was more interested in getting it into
the Google archive. It was suggested in this NG by someone a while ago that Google
Groups would be a good way for someone without a newsreader to participate in this
group's discussions. What I have since learned are related in my comments about
your post which didn't appear in the thread I've gotten from my news service, but
were mainly meant to address this question of participation through Google.
Obviously, since I've gotten this post of your comments (and have gotten many
others in the past), the problem was transient. I probably should have started a
separate thread or dug up the earlier one where the Google comments appeared. It
might have been less confusing.

David Janes

 

I see. What I think is confusing to some is the distribution of Usenet
messages. Generally, Google runs a few hours - full day behind most news
servers. I think it's because it takes longer to enter into their database,
but the completeness is very good. I found this thread (minus today's
postings) complete on Google:

http://groups.google.com/groups?hl=...snmrro2-gest.nuria.telefonica-data.net&rnum=1

But anyway, the completeness of news services varies widely. Cox, like many
internet service providers, may have a very poor news feed, which results in
slow receipt of messages and lost messages. Newscene is considered a
premium service that offers much longer retention and better completeness
than standard ISP news offerings.

Dave