My math professor once brought into the classroom one of these things you see in the attached sketch. Anyone know what it called?
It looks sort of squarish, but it rolls when you set it on a table. How would you make one of these on a lathe? The thing I want to make is on the right, the starting shapes are the two on the left.
It looks sort of squarish, but it rolls when you set it on a table. How would you make one of these on a lathe? The thing I want to make is on the right, the starting shapes are the two on the left.