Do I need to fully define derived sketches if the parts are mated correct? SW2017 on an average Dell.
ALL sketches should ALWAYS be fully defined.
how concerned you should be will depend on the specifics in these files, so I will not comment on that unless we get to review the files.
The long gray sketch is derived to draw the part to the left, it was a base sketch for all. When opened it turns blue. Not a huge concern, but I like everything constrained. I was not aware of how to fully define a derived sketch, I thought it was taken care of.
right mouse button...
derived sketches are defined the same way as any sketch - with dimensions and relations. you will need something to define the sketch's location and orientation.
To answer your question, if you have to ask whether you need to define a sketch or not, you definitely need to define it.
Once you have a lot more experience, there may be an instance where having a sketch not fully defined may be acceptable...But, those cases will be few and far between, unless you really are in a niche area (I don't do a lot of surfacing, but that may be one area).
To fully define that derived sketch, all you need to do is drag two points to coincident with the underlying sketch. I do it all the time, and it works fine.
Hi Matt, Can you explain that last sentence more "To fully define..."? I don't quite understand. Please explain where you are at when operating the points.
Take a look at this video. I make two coincident relations between the derived sketch and the originating sketch which fully defines the derived sketch. If you derived sketch is on a different plane or oriented differently, then you will need to create two constraints some other way, such as with dimensions or relations.
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