Oval of Cassini

Hello All,

I'm trying to cut a sphere to give me two identicle surfaces (like a
baseball).
I know it's called an Ovel of Cassini, but what I need to do is figure out
what it looks like from a side view so I can split the surface of the
sphere.

Any help would be greatly appreciated.

TIA,
Muggs

 

http://mathworld.wolfram.com/BaseballCover.html

is a good start. Search the site for "baseball" for more interesting
stuff. Look also for "ying-yang" (?sp).

 

Thanks Jeff!

 

Thats where I saw it. Thanks Dale, I new I saw one somewhere.

Muggs

 

Paul,

That's very cool.

I'll say this much for ya. You have a real talent for finding simple,
visual, solutions to complex geometry problems.

Regards

Mark

 

Interesting, you can substitute a parabola for the arc and still get a
reasonable result.

The next trick is to do a flat pattern layout.

 

Paul,

Why the 4" dia dimension on the arc? I created a similar part that had
that arc coradial to the profile of the ball and it worked. At least it
seems to be the same geometry, I could be overlooking something.

devlin

 

Paul,

Why the 4" dia dimension on the arc? I created a similar part that had
that arc coradial to the profile of the ball and it worked. At least it
seems to be the same geometry, I could be overlooking something.

devlin

 

I've been away, but thanks to all who responded.
Very interesting.

Muggs