Object snaps disappear

[Anonymous]

Hi! I work with blocks that have several concentric circles. I need to catch outer circle midpoint. When a cursor is over circle I need, snap appears. Then I move the cursor towards circle's center and it intersects with other circles I don't need and new snap appears unfortunately the snap I need vanishes at that moment. 

Any idea how can I freeze this snaps? 

P.S. Circles have different z-coordinate so midpoints do not match

Thanks!

[j.palmeL29YX]

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@Anonymous wrote:

Then I move the cursor towards circle's center

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Why do you do this?

Activate the Center Osnap (CEN), pick the outer circle and all is done. 

[Anonymous]

I do it to select the snap I need. It doesn't select itself when the cursor is over outer circle - I need to click the cross (ObjSnap). When I move the cursor to do it - it disappears because the cursor moves over other circles and their snaps appear... Center snap is ON otherwise there is no snap crosses at all.

[j.palmeL29YX]

What else do you need?

>>Video<<

[Anonymous · Accepted solution]

The problem is that it doesn't work when other snaps are turned ON.  As far as I understand it selects the closest snap and in my case CEN snap is not the closest one. So I can solve it turning other snaps OFF, but it's not much convenient.. Hoped there is a sys variable that controls snap lifetime.

P.S. Finally solved it using Object Snap Override : Midpoint

[j.palmeL29YX]

You should say AutoCAD explicitely that you want to snap a center point.

Either by typing CEN in the command line (as I did in my video) or RightClick and choose cen from the context menu or using SHIFT+C (Temporary Override, that's my favorite) before picking the (wished) circle - a lot of ways.

[j.palmeL29YX]

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@Anonymous wrote:

P.S. Finally solved it using Object Snap Override : Midpoint

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Oops. Midpoint doesn't snap the center point of a circle.