In the version shown below it is as run_the_race describes. thomas-neemann is right, that on creation of a DatumPlane in XY-plane the axis cross points initially in the right direction. However, it stays in that position even if the DatumPLane is moved.
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To Flip or Not to Flip, That is the Question (Datum Planes)
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Re: To Flip or Not to Flip, That is the Question (Datum Planes)
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Re: To Flip or Not to Flip, That is the Question (Datum Planes)
Okay I see, thats a point worth remembering. However in this case it is attached to some reference sketch geometry, not a plane.thomas-neemann wrote: ↑Sun Jun 20, 2021 5:20 pmFor me it is like this, if I start the datuplane in the xy plane, I can move and twist it as desired, it always corresponds to the coordinate system.
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Re: To Flip or Not to Flip, That is the Question (Datum Planes)
if I understand it correctly, it shouldn't be done because of the topo ... problemrun_the_race wrote: ↑Tue Jun 22, 2021 7:25 am However in this case it is attached to some reference sketch geometry, not a plane.
Re: To Flip or Not to Flip, That is the Question (Datum Planes)
In the opposite, we usually recommend to attach to the main planes or to sketches, see this page, especially the paragraph about creating stable models. Yet attaching to sketches can cause toponaming issues.thomas-neemann wrote: ↑Tue Jun 22, 2021 7:41 amif I understand it correctly, it shouldn't be done because of the topo ... problemrun_the_race wrote: ↑Tue Jun 22, 2021 7:25 am However in this case it is attached to some reference sketch geometry, not a plane.
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Re: To Flip or Not to Flip, That is the Question (Datum Planes)
I have read that very good advice and tried to apply it. I thought I was applying the concept of a use a "master sketch", so then I thought its okay to attach a datum to a "master sketch", you reckon rather not?chrisb wrote: ↑Tue Jun 22, 2021 7:53 amIn the opposite, we usually recommend to attach to the main planes or to sketches, see this page, especially the paragraph about creating stable models. Yet attaching to sketches can cause toponaming issues.thomas-neemann wrote: ↑Tue Jun 22, 2021 7:41 amif I understand it correctly, it shouldn't be done because of the topo ... problemrun_the_race wrote: ↑Tue Jun 22, 2021 7:25 am However in this case it is attached to some reference sketch geometry, not a plane.
Re: To Flip or Not to Flip, That is the Question (Datum Planes)
You did it right by attaching to the sketch! I think thoma-niemann got it wrong. He may had thought about attaching to faces instead of sketches.run_the_race wrote: ↑Tue Jun 22, 2021 5:25 pm I have read that very good advice and tried to apply it. I thought I was applying the concept of a use a "master sketch", so then I thought its okay to attach a datum to a "master sketch", you reckon rather not?
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.