Custom Shaped Hollowing

[curious aardvark]

in openscad it would be a difference operation:
this is using a skull model I already had on my harddrive.

It won't look like much until you run it through a slicer :-)

here's the script:

$fn=12;

difference(){
translate([0,0,18])sphere(d=55);
translate([-20,-18,1])resize([40,40,40])import("c:/skull.stl");
} // end diff

doesn't get much simpler :-)
Of course it helps to have a few skull models on the root of your harddrive :-)

I use them to make hinged moulds and then i use the clay skulls as slinging ammunition :-)

heres what you've got:

blood diamond.jpg

But in the rendered version the faceted sphere is solid and the skull has been removed from it's interior to leave a skull shaped void :-)