How do I create 2 grease groove on the inside diameter running lengthwize 180° apart with a spherical radius at each end?
Can you provide an example of what your trying to accomplish?
Like this, for instance?
I assume you are talking about grooves on the inside of a cylindrical tube? Here is one method you could use. Start a sketch on a plane perpendicular to the tube axis and somewhere in the zone where you want the grooves to run. Then draw the profile of one groove.
Next cut extrude this in one or both directions depending on where you want the groove to go.
Now the ends are flat, but you can just add a fillet to both ends to match the groove radius.
Finally you can use a circular pattern to get the second groove at 180 degrees.
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