destroy the cube! v1.2 connection break

The idea with this build was to basically build a cube enemy ship (like the borg) with a shield. It has vulnerabilities in the middle of each sides of which you shoot at using your finger.
My aim now is to get it to break apart, but the force of the landmines exploding on the surface breaks the physical connections before any mechanisms that I can build to do the same job.

V1.2 I have gotten it to break apart well enough for now. However, when it breaks apart I set each broken part to fly off and be auto absorbed, but the whole cube get absorbed instead of each section that I attached it to. Any help would be much appreciated