This one has bitten me before but it was a long time ago so I forgot about it and made a mess of a job.
Draw a sphere of say 1500mm radius
Offset sphere inwards by say 350mm
In Properties, increase isocurve density to 4
The U isocurves are now unevenly distributed. You may have to ArrayPolar a line to see it, because it’s not immediately obvious (see attached).
Can anyone please explain WHY this happens? I would make the (obviously wrong) assumption that it should remain symmetrical.
No panic on this as I will be unlikely to screw this up again, but I’d just like to know what’s going on.