constrain center point of sphere

[laughingcreek]

When inserting a sphere on point in a sketch, it doesn't stay constrained to the point when the sketch is edited.  Is it suppose to?

[paul.clauss]

Hi @laughingcreek

Thanks for posting! The primitive shapes do not truly associate to any sketch entities - it may appear that the Sphere is inserted directly on a sketch point, but it is really just snapping to the same location as the point on the sketch grid. In this way, you cannot truly associate the center point of the sphere to a sketch point just in creating it.

To associate the centerpoint of the sphere to a sketch point, you could create the sketch, turn the Sphere into its own component, and use a rigid joint. I have shown this in the screencast below - hopefully this helps! Please let me know if you have any questions.

[mattM3TNU]

If it is totally unconstrained why even give the option for join, cut, intersection ect...when they are literally useless?

Or is there some way to actually use those features that I don't understand?

[BLACKBETON]

trying to make sphere stick ton points i've sketched. it worked a few times after many sketches adjustments and tries, but for some reason it doesn't work at all anymore... 
the component tip as shown above is so user unfriendly....  is there any solution found since this 2018 post ? 

thanks

[jhackney1972]

In my Screencast, I use a sketch point.  You also can use a Construction Point for the same purpose.  No matter which method you use, the sphere will follow the entity when it is edited.

[darran]

Thanks John. We shouldn't have to do this ... but it works.