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Can't make 3d-line snap to helix


jpolihro

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Hello All,

 

I have a helix, say, coming out of the front plane.

Then I plot a 3d-line sketch.

 

I am trying to either:

1) Make one end of the 3d-line snap to one end of the helix (in the very moment I am plotting the 3d-line)

 

OR

 

2) Sketch the 3d-line,

exit 3d-sketch,

Edit the 3d-line,

Click on one of its ends

Click 'Add Relation'

Click the helix

Try to force "Coincident" constraint

 

It never works.

 

 

If I do all the above with sketching a 3d-point, both coincidence/snapping always work.

 

Please post if you have an idea why the 3d-line won't snap/coincide...

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I got some help in solving this one, but now it works. Once the helix is plotted, select it with a mouse and click 3d-sketch --> convert entities. The helix is thus converted to a 3d-sketch and there is no problem making a coincident constraint (or snap) to it with a 3d-line.

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