Q: I'm trying to do a series of Bollean substractions on the surface of a sphere, but I find the job of positioning the same object at the same distance from my sphere's axis tedious. Is there any way to make an obect remain at the same distance from a point, a sort of distance "lock" if you may? Imagine for example, a small sphere being substracted from a larger one all over the surface at regular interval. A radial array will work, but I need asymetry for this project.

A: What about animating the small sphere and using Snapshot?

You can create a path in the Shaper/Lofter for the small sphere, or attach it to a hierarchy of Dummies to let it move as you want. Then, you can snapshot the whole range of positions you need to substract - this will bring lots of spheres from the KF into the 3D Editor. Now you can use Boolean/Substract for each one of them...