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Lines behavior in SW

Question asked by Amit Kohan on Oct 19, 2012
Latest reply on Oct 23, 2012 by Lenny Bucholz

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Hello,

I am having questions about line behavior in SoildWorks. I tried to learn sketching and of course what I should be expecting from line but found there are different cases and it is not consistent.

Here are few of the cases:

Case 1: let's assume there are two lines connected via a shared node e.g. AB and AC so moving AB allows us to move AB on AC and as much as it gets extended in 2 directions or moving AC allows us to move AC on AB only.

Case 2: If we add up a new line to the same shared node between AB and AC then we will fact two different behaviors:

2-1) if line gets branched out then other 2 lines movement will stay as before

2-2) if line is added toward sharing node then other 2 lines or at least one of them will have a different behavior meaning that one of them will move in favor of new line.

in cases more than 2 lines, this gets more complicated.

Question: What is the logic behind this?

Thanks,

akohan

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CasesOfDrawing3Lines.docx39.3 KB

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Walter Fetsch Oct 19, 2012 5:59 PM

Amit,

I think you're going to have to provide some images so we can better understand what you're trying to describe.

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Amit Kohan @ Walter Fetsch on Oct 19, 2012 6:01 PM

Hi Walter,

Sure, I am working on it and will send few snapshots soon.

Thanks,

akohan

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Amit Kohan @ Amit Kohan on Oct 19, 2012 7:02 PM

Hello again,

Please see the attached Word file which I have shown 4 cases for 3 lines connected in one node. In the Word file I have used a term as "in favor of", e.g. 1 in favor of 3. Meaning moving line 1 can be moved or dragged around as long as it is connceted to 3. However, I'm not sure why SW is sensitive to the order of lines.

What beneifit does this have? and also what happens if number line and their sequence increases?

Thanks.

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Dwight Livingston @ Amit Kohan on Oct 20, 2012 10:21 AM

Sounds to me like you are creating sketch relationships in some cases and not in others. Sketch relationships can cause some parts of the sketch to be free and others fixed. Look at the relationshsips. Do you have those turned on, so you can see them?

Dwight

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Jerry Steiger @ Dwight Livingston on Oct 21, 2012 1:22 PM

Amit,

To expand on what Dwight suggested, if there are no sketch relations (other than the one end point being shared between the three lines), then you can move the other end points of the three lines with complete independence.

Jerry S.

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Lenny Bucholz @ Amit Kohan on Oct 23, 2012 12:07 PM

what I don't think you are understanding about underdifined sketches is that if something is not anchored say at a piviot point the line cannot tilt only stretch or move parrall to its self, has nothing to do with the order you created any of the lines, all depends on how they are connected and where you'ved loked them to the origin or other geom.

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6 Replies

Walter Fetsch Oct 19, 2012 5:59 PM
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Amit,

I think you're going to have to provide some images so we can better understand what you're trying to describe.
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- Amit Kohan @ Walter Fetsch on Oct 19, 2012 6:01 PM
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  Hi Walter,
  
  Sure, I am working on it and will send few snapshots soon.
  
  Thanks,
  akohan
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  - Amit Kohan @ Amit Kohan on Oct 19, 2012 7:02 PM
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    Hello again,
    
    Please see the attached Word file which I have shown 4 cases for 3 lines connected in one node. In the Word file I have used a term as "in favor of", e.g. 1 in favor of 3. Meaning moving line 1 can be moved or dragged around as long as it is connceted to 3. However, I'm not sure why SW is sensitive to the order of lines.
    What beneifit does this have? and also what happens if number line and their sequence increases?
    
    Thanks.
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    - Dwight Livingston @ Amit Kohan on Oct 20, 2012 10:21 AM
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      Sounds to me like you are creating sketch relationships in some cases and not in others. Sketch relationships can cause some parts of the sketch to be free and others fixed. Look at the relationshsips. Do you have those turned on, so you can see them?
      
      Dwight
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      - Jerry Steiger @ Dwight Livingston on Oct 21, 2012 1:22 PM
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        Amit,
        
        To expand on what Dwight suggested, if there are no sketch relations (other than the one end point being shared between the three lines), then you can move the other end points of the three lines with complete independence.
        
        Jerry S.
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    - Lenny Bucholz @ Amit Kohan on Oct 23, 2012 12:07 PM
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      what I don't think you are understanding about underdifined sketches is that if something is not anchored say at a piviot point the line cannot tilt only stretch or move parrall to its self, has nothing to do with the order you created any of the lines, all depends on how they are connected and where you'ved loked them to the origin or other geom.
      Like • Show 0 Likes0
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Lines behavior in SW

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