Having built a 60 sided geodesic, the question was,
what to do with it?
A logical challenge was to try to make it rounder.
I experimented with cutting bevels on the corners of each triangle
before assembly, which would make for an effectively 160 sided shape.
But I only did this with a few triangles that I had left over.
I didn't want to make the whole geodesic again.
So I had the idea of truncating all the corners off the one I had made.
It was easiest to just cut them freehand on the bandsaw. I marked
circles around the corners to guide me with how far I'd want to cut.
I thought about making some sort of jig, but then ended up just cutting
it all freehand. There is a risk that the blade might bind. I lowered
the blade guide so it just clears the ball, so that if it does catch,
hopefully the ball would hit the guide. But I was able to cut all 32 corners
without mishap.
Next I rounded the remaining edges with a small hand plane. Resting the
ball on a bucket made this easier.
Then lots of sanding with a coarse belt on the belt sander.
I have no patience for orbital sanders.
It's about the right size for a soccer ball. So long as everyone wears
steel toed safety boots and hard hats! But then again, if they can hold
the World Cup in Quatar, a wooden ball might not be that outrageous
by comparison.
Just for the heck of it, I varnished it. The gloss actually makes it look
more spherical.