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Solidworks 2020 centermarks not staying with feature - has this always been the case?

Question asked by John Buckley on Nov 13, 2019
Latest reply on Nov 13, 2019 by David Matula

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I have always used manually created centermarks when detailing holes, radii, etc... I was recently editing a model that had a drawing associated with it. I made a slight position change to a threaded hole, but the dimensions on the drawing never changed. I assumed the dimensioned hole was tied to the centermark. I grossly moved the hole and realized the centermark wasn't staying with the feature. Has this always been the case? I just updated to Solidworks 2020 and I'm not sure if this is normal. I have been using centermarks for years and never noticed this. I hope they follow the feature they were created from, otherwise all my old drawings are suspect!

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John Pesaturo Nov 13, 2019 3:06 PM
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John ... I'm hesitant to say it's "always" been the case but I am not hesitant to say that Center-lines and Center-marks have bitten me in the arse in the past. Take it for what it's worth ... Just my .02
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Glenn Schroeder Nov 13, 2019 3:11 PM
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"Has this always been the case?"

Yes, I'm afraid so. Maybe not in all cases, but it isn't new.
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- Jim Sculley @ Glenn Schroeder on Nov 13, 2019 4:05 PM
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  I would like to see a repeatable instance of this. I tried the typical workflows I could think of and couldn't make it happen. I tried changing the position, size and type of hole wizard hole and the centerlines and dimensions move as expected. Ditto for an extruded cut hole.
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  - Glenn Schroeder @ Jim Sculley on Nov 13, 2019 4:44 PM
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    Jim Sculley wrote:
    
    I would like to see a repeatable instance of this. I tried the typical workflows I could think of and couldn't make it happen. I tried changing the position, size and type of hole wizard hole and the centerlines and dimensions move as expected. Ditto for an extruded cut hole.
    
    The more I think about it the more I believe the issue I was thinking of was the inability to re-attach centermarks after they lose their link to the model. We can re-attach dimensions (sometimes).
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    - David Matula @ Glenn Schroeder on Nov 13, 2019 6:31 PM
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      should be able to reattach the center marks, right click and tell em to reattach. the one i have a time with is the radius and dia dims. delete and redim is the way to handle those.
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John Stoltzfus Nov 13, 2019 4:14 PM
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John Buckley

Thinking that your dimensions are set to Drive the Centermarks, I think there is a setting to have the dimensions added as driven...

Could that be the issue???

I have a few jobs I need to get out before I go, be back on Fri, thinking there is a setting..
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- John Buckley @ John Stoltzfus on Nov 13, 2019 5:29 PM
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  I went looking for such a setting but did not find it. I did see several centerline/center mark settings in the Drawing Options/Detailing section. But nothing about tying dimensions to centermarks, driven or otherwise.
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Josh Brady Nov 13, 2019 4:39 PM
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Do you have your colors set up to be able to tell if items are dangling? Centermarks are tied to circular edges, not features. This is a fine distinction, but... If you change the hole type, add a c'bore or c'sink, etc. after creating the centermark, the edge it was tied to may disappear. In that case the centermark should turn a sickly greeny-yellowy color to indicate that it's dangling, and it won't follow the hole.

Another possibility I just thought of... SW19SP4 (I think) introduced a bug where you can't prevent selecting hidden edges. No idea your part's complexity, but if there is a circular edge that's hidden that was concentric with the hole's original location, you might have unknowingly selected the wrong edge when adding the centermark.
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John Buckley Nov 13, 2019 5:27 PM
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Josh Brady!!
I think maybe you nailed it. I created the center mark on the opposite side, where the hole lines were hidden. This is when my problems started. I just created another view with the holes facing up and the center marks seemed to work fine. The odd thing is, the old view was still there and it started working properly as well. I removed the new view and tested it again with the hidden lines, I got slightly different results but still at least one of the center marks did not move with the hidden lines. So I think you are correct.
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Solidworks 2020 centermarks not staying with feature - has this always been the case?

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