How to create a plane on an ellipse/circle?

Hi,
I have an ellipse and multiple circles that have been
projected onto the surface of a curved surface (split line). I then
want to do a cut-sweep around the ellipse (circles). When I select the
ellipse to add a plane, it cannot because it (obviously) doesn't have
a vertex. How does one accomplish this if there is no vertex?

Thanks for any suggestions...

Mike Tripoli

 

Place point on the ellipse and then select the point and the ellipse and
you can have a normal to curve plane.

Ben

 

If I understand correctly your intentions.

Create a 3d sketch
select your split line
convert entities on it
place a point anywhere along the 3d sketch, exit sketch
select the point and sketch
create plane "normal to curve"

Takes much longer to explain than to do <G>

 

Let me clarify, use a 3d sketch make a point on the split line

 

No need to convert entities, just put a point on the split line, exit
sketch and then create plane normal to curve using the split line and
the point.

Ben

 

Thanks guys... works slick as teflon...

Ya' know, I''ve asked this same question of others, as well as my VAR
along time ago, and they said "you can't"... hmmmm...

Thanks again!


Mike Tripoli

 

"No need to convert entities, just put a point on the split line"
I like this one becuase it makes the starting point easier to control
if you need to.

But for the record the point doesn't even need to be on the curve - you
could just pick the origin and your curve and you will get a plane
perpendicular to the curve to use for your section plane.

 

I was unaware you did not need a point on the curve
Nice! Thanks...
Ben