Is SW really a drafting program? -Section Views

Has anybody found a way to create a half section view in SW?

A half section shows half a section line which reveals half of the
interior of the part, while the other half of the part is shown as
normal. If a half section is shown on a cylindrical part, one quarter
of the part will be removed.

 

broken out section?

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regards

Markku Lehtola

www.markkulehtola.net

 

Hey Markku, I love the animation on your web site. did you made it yourself?

cheers,
Gil Alsberg

 

Paul,

Partial Section used to do this nicely in SW. Just draw the section
line and a line perpendicular to it, and have the line used for the
section selected when you hit the section view command, and allow it to
make a partial section. Now in 05 and 06 it looks like it's doing some
things that aren't right. I'll bet you could get a regression or two
out of that one.

Matt

 

I'm putting together an exam and will have the students state which of
these methods, broken out section, partial section or offset section
will do this. In neither case does SW get it right according to ANSI
standards without some serious workarounds. SE doesn't get it right as
far as I can tell either.

1. Broken out section. This will show the view correctly, i.e., 1/4 of
the part removed, but it will not supply the section plane line or the
labeling.

2. Partial section. This will show the cut portion, but not the uncut
portion. In other words, only half the part will be shown, and the rest
will not be shown. Also the section plane line will not be shown
properly because it should have an arrow showing view direction on one
end and and just the section line without arrow on the plane
perpedicular to the section plane.

3. Offset section with one half the section plane shown outside the
part. This creates the proper section view and the annotation (labels)
but the section line and arrow that are outside the part are not
supposed to be drawn. I would use this, but a halfway decent checker
would not let it get by.

Here is a list of the various sections view types and whether SW can do
it correctly (ANSI) with or without workaround:


Full Section SW: yes SE:yes
Half Section SW: no SE: no
Broken Out Section SW: yes SE: yes
Revolved Section: SW: workaround SE: workaround
Removed Section: SW: workaround SE: workaround
Offset Section: SW: yes SE: yes
Assembly Section: SW:yes SE: yes
Auxilliary Section: SW:yes SE: yes
Aligned Section: SW:yes SE:yes

The revolved section should be should be an option with a break line.

 

Paul,
I've used these types of views before and just tested in SW06, so I'm
a bit confused as to what you're after. I simply created an end view
with a cutting-plane line that consist of two lines. One vertical & one
horizontal. I pre-selected the vetical line, created a "section view"
and project to the left. The result is a 1/4 section view, top half
external and lower half sectioned.
I do not know how to attach an image here so I'll post at the SW
discussion forum. Let me know if this is what you are after.
Eddie

 

Likewise I'll probably get around to posting some of the stuff I've
come across.

 

It seems to me that the reason that these systems do not provide an
automatic tool for some of these view types, is lack of popularity/need.
Seems to me that the last time I saw some of these views, it WAS in a text
book

Ken

 

Ken,

Maybe in your world. There is a very good reason that all these section
views were promulgated. They are usefull in making clear the inner
features of various parts and assemblies. Secondly, they are not just
in some textbook, but they are in national standards which means they
aren't just theoretical, but practical and in some cases required in
order to communicate. I have used or have read prints with each one of
these section views in my time as an engineer. Further, being standards
means that many engineers and draftsman have come to agreement on how
they are defined and what they mean. This wasn't done in a corner. At
any rate, the only one that SW can't do right is the half section.

 

I'm not doubting you. I just can't say that I have seen half of them in the
past 20 years involved in product design. May have to do with the fact that
it has mostly been on 3D modeling systems though and as you or someone had
mentioned, automatic full sections are a piece of cake, so their used allot.

Ken

 

I should post the workaround for revolved and removed sections:

1. On a long thin part (think tube or beam) orient the long way
horizontal
2. Insert vertical break lines and drag to near the ends
3. Place a vertical section between the break lines.
4. In tools options, set the break gap to something larger than normal
to accommodate the revolved section.This depends on scale
5. Break the view
6. Create a layer called blank and set it to not display
7. Place the section line and the section caption on the blank layer
8. Drag the section view between the breaks.

To do a removed section, skip the break line steps and leave the
section view just to the left or right of the main view.