Hello Martin,
you can also use the node editor for that. Use nodeeditor.v.0.85mod3.zip. First construct/curve/intersect all lines. You will get the point objects. Let the points selected and create a point node under Test/Point. This point version evaluates the coordinates of all points. Now create a solid/sphere and an transform/orient node. And wire them. Ready for run:-)

Have a nice day
Karsten