How to get the intersection point of a line with 3d face?

[Anonymous]

The title says it all.

I have a 3d face that is pierced by a straight line, how can I construct a point or vertex at the intersection of these two?

[Anonymous · Accepted solution]

I was able to create the point by using the "Split-Face" command twice. Once with the plane on which the line was created, and once with a helper plane that I created at an angle of 90 degrees to the first plane.

Then I created a vertex on the intersection of the two planes on the face.

(The same can probably be done using projections?)

Is this the best way to go about this, or is there a more elegant way?

[wrpfohlXR4MC]

If you create a 3D sketch (checkbox in sketch panel), you have the option of projecting curves to a surface.

Walter

[Anonymous]

Yes, but you are limited by the projection vector.

If the line has the same direction as a projection vector, this will work.

For me, the line does not align with a projection vector, and hence I cannot use this method.

[chrisplyler · Accepted solution]

Create a sketch on that face.

Project>Intersect that line.

The result is a sketch point where the line passes through the face.

[Anonymous]

Agreed, but that is nearly identical to the method around I posted earlier.

[chrisplyler]

Sorry...I had failed to notice the '3D face' part of your request.

Try this instead:

Construct a Plate-at-an-Angle on the line.

Start a sketch on that plane.

Project>Intersect the 3D face.

Place a Point where the intersection is.

Finish the sketch.