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Derived sketch inserts backwards

Question asked by Aaron S on Sep 15, 2008
Latest reply on Apr 21, 2017 by Clifton Schnarr

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I am trying to insert a derived sketch, but it comes in mirrored to the original. How do I fix this? From <https>https://forum.solidworks.com/forum/messageview.cfm?catid=10&threadid=7063</https> thread, I found this: <div class='jive-quote'>Dale Rosema wrote: For those who didn't know this (and I don't know if it works every time) if you pick the plane again, it will flip the sketch 180 degrees. I figure this out by trying several things because my sketch came in 180 rotated from where I wanted it to be (on the other side of the centerline and mirrored). Thanks, Dale</div>But either I am doing it wrong or it doesn't work for me. Does anyone know how to solve this? Edit: I fail at HTML tags. The hyperlink is supposed to say 'this'. Too much vBulletin, I guess. -Aaron

Martin Cox Sep 16, 2008 7:15 AM

Correct Answer

When you insert a sketch on a plane the plane has a front and a back.
If you can not reorientate the face or plane that you are using to insert the sketch then try generating a new plane by sketching a line on the existing plane and using the plane and the sketch line to generate a new plane that you can rotate 0 Deg or 180 deg. You can select the sketch and redefine the sketch plane to the new one.

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Jason Capriotti Sep 15, 2008 2:11 PM

The "Modify Sketch" tool under Tools/Sketch Tools gives you options to flip, move, and rotate the sketch. It basically reorients the entire sketch....it doesn't do anything to the geometry in the sketch.

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Aaron S @ Jason Capriotti on Sep 15, 2008 2:57 PM

When I select Tools->Sketch Tools->Modify, it gives me an "A sketch with external references to model geometry cannot be translated or rotated" error.

Oh yes, the sketch being derived is from another part in an assembly.

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Martin Cox @ Aaron S on Sep 16, 2008 7:15 AM

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Jason Capriotti @ Aaron S on Sep 16, 2008 12:26 PM

You will have to delete any dimensions or sketch relations that hold the derived sketch to external geometry.

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Clifton Schnarr @ Aaron S on Apr 21, 2017 7:59 PM

The derived sketch doesn't come in with any model relations. You may have already applied some by attempting to rotate or flip the sketch. Just delete those and the sketch will behave nicely. Note the black 3-dot triad that appears during the command. When you hover over any of the three black dots, a tool-tip appears with the options for a left or right mouse click action. Just look for what you want and then click the appropriate click.Jason Capriotti gave the corrct answer.

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Aaron S Sep 16, 2008 1:26 PM

Inserting a new plane rotated 180° to the original worked, but I needed to make sure I was rotating in the right direction.

Jason and Martin, thank you both for your help.

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6 Replies

Jason Capriotti Sep 15, 2008 2:11 PM
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Correct Answer
The "Modify Sketch" tool under Tools/Sketch Tools gives you options to flip, move, and rotate the sketch. It basically reorients the entire sketch....it doesn't do anything to the geometry in the sketch.
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- Aaron S @ Jason Capriotti on Sep 15, 2008 2:57 PM
  Mark Correct
  Correct Answer
  When I select Tools->Sketch Tools->Modify, it gives me an "A sketch with external references to model geometry cannot be translated or rotated" error.
  
  Oh yes, the sketch being derived is from another part in an assembly.
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  - Martin Cox @ Aaron S on Sep 16, 2008 7:15 AM
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    Correct Answer
    When you insert a sketch on a plane the plane has a front and a back.
    If you can not reorientate the face or plane that you are using to insert the sketch then try generating a new plane by sketching a line on the existing plane and using the plane and the sketch line to generate a new plane that you can rotate 0 Deg or 180 deg. You can select the sketch and redefine the sketch plane to the new one.
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  - Jason Capriotti @ Aaron S on Sep 16, 2008 12:26 PM
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    You will have to delete any dimensions or sketch relations that hold the derived sketch to external geometry.
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  - Clifton Schnarr @ Aaron S on Apr 21, 2017 7:59 PM
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    Correct Answer
    The derived sketch doesn't come in with any model relations. You may have already applied some by attempting to rotate or flip the sketch. Just delete those and the sketch will behave nicely. Note the black 3-dot triad that appears during the command. When you hover over any of the three black dots, a tool-tip appears with the options for a left or right mouse click action. Just look for what you want and then click the appropriate click.Jason Capriotti gave the corrct answer.
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Aaron S Sep 16, 2008 1:26 PM
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Inserting a new plane rotated 180° to the original worked, but I needed to make sure I was rotating in the right direction.

Jason and Martin, thank you both for your help.
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Derived sketch inserts backwards

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