Creating a sketch is the correct way. What do you mean "It won't let me select the point"? I downloaded your file. You have View->Hide/Show->Hide all types activated, so the sketch isn't visible. Is that why you can't select the point?
No, that is what I tried but I still couldn't select the point.
What happens if you select the point, then insert the coordinate system?
Kristian Thompson wrote:
Can somebody please tell me how to create a co-ordinate system like demonstrated in the picture below? I have been struggling with this for ages and simply do not know what selections I nee to make to get a co-ordinate system that is coincident with the top face of the model and concentric to the OD of the part.
I know how to create co-ordinate systems when there is a vertex to select to position the origin, that is no problem, but what I am struggling with is there is no point (on the model) that is coincident with the top face and concentric to the OD of the part. I have tried creating a sketch and selecting a point in the sketch but it wont let me select the point.
Can somebody please give me clear instructions on what needs to be done as I am pulling my hair out.
I'm using SWX 2018 SP3.0 so I can't upload my file for you to use.
I'm not sure exactly how you want your new coordinate system to be oriented but I was able to easily put a new one on that face.
Just make sure you have sketches visible.
Make a sketch on the surface. Have two perpendicular lines intersecting at the part center oriented the way you want your system to be oriented then select the point where the lines intersect for your origin and you can easily orient the system by selecting one or both of the sketch lines.
It would be nice if you could just create a coordinate system with out having to have another entity to attach it to (like a sketched point) but SW does not work that way. I usually just sketch a point where I need the coordinate. Then create the coordinate system and attach it
to the point. Yep, 2 features where there should only be one but that's the way it works.