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Not able to create aligned dimensions in assembly layout sketch.

Question asked by Ruoxi Wang on Oct 6, 2016
Latest reply on Dec 26, 2018 by Ryan Feeley

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I'm drawing the layout sketch of my assembly on a plane. The plane is not parallel with any principal plane (Front, Right, Top), but is perpendicular to Top.

To be precise, the plane is created using a sketch tool called "Plane" and is not an reference geometry in the assembly.

When I try to dimension a oblique line using smart dimension tool, the dimension is forced into horizontal or vertical when I place it, although it is an aligned dimension before I place it.

So I'm not able to add an aligned dimension to this line. Please help!!

Before placing the dimension:

After clicking LMB to place the dimension:

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after placing dimension.PNG317.9 KB
before placing dimension.PNG334.7 KB

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Ruoxi Wang Oct 7, 2016 7:25 AM

Wow I found a solution.Just turn off "Sketch on Plane" by "Insert -> 3D Sketch On Plane" or double-click the blank area.

Seems that I'm not familiar with 3D sketch at all.

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Manikandan Babu Oct 7, 2016 5:05 AM

Hi Wang,

I have tried in Solidworks 2016. it is working fine.

Can you give your work flow

Regards

Manikandan.B

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Ryan Feeley @ Manikandan Babu on Dec 26, 2018 1:35 AM

I just tried this in 2019 SP0 and confirmed the bug mentioned in the original post is still there. There is one subtly, but it should be relatively easy to recreate.

Create a new assembly.
Create a layout sketch on the front plane.
Add a line segment to the sketch at say a 45-deg angle.
Use the smart dimension tool to dimension the length by pressing and holding the LMB.

Key step: now before you create the dimension, drag your mouse cursor such that the tool toggles between an aligned dimension and a vertical or horizontal dimension.

Now go ahead and create the dimension in the "aligned" orientation by releasing the LMB.

The dimension will not be placed as "aligned". Rather it will snap to either horizontal or vertical.

As the original poster indicated, a workaround is to disable the "3d sketch on plane" behavior when you create the dimension.

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3 Replies

Ruoxi Wang Oct 7, 2016 7:25 AM
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Wow I found a solution.Just turn off "Sketch on Plane" by "Insert -> 3D Sketch On Plane" or double-click the blank area.

Seems that I'm not familiar with 3D sketch at all.
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Manikandan Babu Oct 7, 2016 5:05 AM
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Hi Wang,
I have tried in Solidworks 2016. it is working fine.
Can you give your work flow

Regards
Manikandan.B
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- Ryan Feeley @ Manikandan Babu on Dec 26, 2018 1:35 AM
  Mark Correct
  Correct Answer
  I just tried this in 2019 SP0 and confirmed the bug mentioned in the original post is still there. There is one subtly, but it should be relatively easy to recreate.
  
  Create a new assembly.
  Create a layout sketch on the front plane.
  Add a line segment to the sketch at say a 45-deg angle.
  Use the smart dimension tool to dimension the length by pressing and holding the LMB.
  Key step: now before you create the dimension, drag your mouse cursor such that the tool toggles between an aligned dimension and a vertical or horizontal dimension.
  Now go ahead and create the dimension in the "aligned" orientation by releasing the LMB.
  
  The dimension will not be placed as "aligned". Rather it will snap to either horizontal or vertical.
  
  As the original poster indicated, a workaround is to disable the "3d sketch on plane" behavior when you create the dimension.
  Like • Show 1 Like1
  Actions

Not able to create aligned dimensions in assembly layout sketch.

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