Can't add the coincidences constraint

[Anonymous]

1. Can't add the coincidences constraint, but the point can be moved

2. how to view a list of existing constraints, similar to freecad

3. Any change to the sketch causes the program to hang for minutes, what should I do about it? The sketch contains only a part of the required product, but further work is not possible 😞

I attach the source file and the video

[etfrench]

The 2mm dimension was on a co-linear line.  Removing the line allowed the 1mm line to be tangent with an endpoint coincident with the circle.   It is not a good practice to use overlapping lines (or other geometry) because it is very hard to find them.

[Anonymous]

Thanks, overlapping lines due to the fact that construction lines can not be used to create profiles, and I did not find another solution, in this example, the platform will be extrude, and then a revolve profile located inside it will be subtracted from it.

what to do with items 2,3

even when you delete an unnecessary part of the circle, the drawing loses its rigidity

[Anonymous]

Thanks, overlapping lines due to the fact that construction lines can not be used to create profiles, and I did not find another solution, in this example, the platform will be extrude, and then a revolve profile located inside it will be subtracted from it.

what to do with items 2,3

+ 4. what to do when you delete an unnecessary part of the circle, the drawing loses its rigidity

[etfrench]

2. No way that I know of.  You can try asking in the API forum.

3. Turning off Show Profile may help. Also try the Fix/Unfix command to Fix geometry.  Both of these should reduce the compute times.  If the Fixed geometry needs to change, then Unfix it. 

4.  The easy way is to not delete part of the circle.  It's usually not necessary to trim or delete parts of geometry, although that can make a sketch overly busy.  The hard way is to add dimensions and constraints until the sketch is fully constrained again.  In the Text Commands window (activate on File menu/View/Show Text Commands) enter:  Sketch.ShowUnderConstrained.  This will help find unconstrained geometry.