I like the Idea of a spinning wheel of death 'n' destruction!
As im not really into the automatisation-part for now i created an all manual main-drone for now.
But i added a sub-drone with a decoupler that ist falling down to the core with drillers and a few spinning miners.
I like the part with the solarpanels to go up and stay there, i didn't know it was possible to send energy around two drones ;D
Here is my ball of death: