Why can I not select the intersection between two construction circles?

[eldavid0000]

Please see the attached F3D file exported.  It is for design of a GT2 pulley profile.

First see inside Sketch 4 (a new sketch), where the construction lines are inside Sketch 1.

Using the Point tool see the following areas and behavior of the program:

At the top of the circle construction shown here, you can see a box is created at the intersection of the circle and another line.  This circle is Tangent to that line (and intersects it).  

This square does NOT appear when attempting to hover over and create a point at the intersection shown here, where two circle constructions are Tangent to one another (and intersecting):

Now attempt the same inside Sketch 1:  The Tangent constraints are clearly shown now (see symbol). 

Intersection at top gets indicated as a square when attempting to place a point there as is expected. 

Intersection between circles does not show the intersection when hovering over it.

[eldavid0000]

Changing one of the circles into a regular line instead of a construction line does not help:

[etfrench]

Double posting is frowned on😁

[eldavid0000]

This is a standalone issue that I am having.  File and steps to reproduce are shown clearly.  

Yes, I replied to a year old thread (stale but unclosed?) posting my file but I am not sure if it is directly related.  If it can help them resolve their issue then I am happy to contribute but next time can just leave the thread silent. 

[etfrench]

See response in the other thread.

[davebYYPCU]

A couple of things (without reading the file)

If you hide sketch 1, when working in sketch 4, there is nothing to snap to.

Working in sketch 4, needs sketch 1 articles projected into it.

Construction Point Menu - points, - are not the same as sketch points.

3d triad, indicate that your not working in a 2d sketch, so 2d sketch tools will be unavailable.

That said, you have not said, what you want in sketch 4.

Might help.....

[eldavid0000]

I wanted to use the point tool to create a point where the two circles intersect. 

[davebYYPCU]

Presumably a Sketch point, not Work (Construction) Point, 

Fusion has never placed points at intersections, you have to create them

Ed has mentioned two methods.

Might help....

[eldavid0000 · Accepted solution]

Got it - thanks for replying - I am getting used to these forums and I thought I was replying to something >1yr old and potentially stale. 

Regarding your reply:

"You get the square when the cursor is over an endpoint, not necessarily coincident.  There are at least two ways to find the tangent point between two circles.  One: Use the Break command on one of the circles.  Two: Draw a line between the centers of the circles and trim or break the line.   Note: In you file, you have overlapping lines which is almost always a bad thing to do.  The endpoint of one of the lines will display the square.  Delete the circle and the other line and the square will still be displayed."

I started with the 2nd option drawing a line between the circles, because I was afraid breaking would break in an inexact place -- that worked well.  

Then I tried breaking the circles at their intersection directly, and that seemed to also work.   An x seemed to snap to the point of their intersection.

If the program was smart enough to do the above I am not sure why it had trouble creating a point at the intersection between the circles.  I guess the simple answer might be 1) that it's not supposed to or 2) they forgot to implement that.