3D Nesting for non planar objects

In the past I’ve used nesting software for 2 1/2 axis machines but now I find myself requiring a more complex solution in three dimensions for 3D printing.

Are there any Rhino plugins for nesting 3D objects within the volume of a cuboid? (or any programs for that matter)

As an example I need to nest a few of these within a given volume:

Thanks in advance