Each model is a hollow Zometool shell: every ball sits on one thin spherical shell centred on the origin, and every edge of the convex hull is a single standard strut (RGBY, scales 0-3, no concatenation). Drag to rotate any model.

The 240-ball shells here are exactly round; for more, see Perfectly Round Zome Models.

240 balls (variant a) 420 struts
240 balls (variant a) 420 struts Every ball lies on one sphere.
240 balls (variant b) 420 struts
240 balls (variant b) 420 struts Every ball lies on one sphere.
240 balls (variant c) 450 struts
240 balls (variant c) 450 struts Every ball lies on one sphere.
360 balls 660 struts
360 balls 660 struts Ratios between radii ≈ 99.96%
960 balls (variant b) 1500 struts
960 balls (variant b) 1500 struts Ratios between radii ≈ 99.48%
960 balls (variant a) 1500 struts
960 balls (variant a) 1500 struts Ratios between radii ≈ 99.48%