Post #1916345

@brainsmoke @sabetta Extending racks can curve along the surface of a sphere, as long as the curvature of the sphere remains the same. So I think a similar design to the one in the video could work, with rotating and extending arc-edges arranged around a core. But it would be an interesting challenge to do it without a central core, via a mechanism that works only on the surface of the sphere. I think this is more what you're suggesting?