Lunacraft Wiki talk:Ideas/Archive 2/@comment-81.155.241.167-20120616112500

A tunneling machine...

It tunnels automatically through the ground and when it comes to a rare mineral it stores it in its onboard storage unit.

To make it you would put four drills in each corner then put an energy orb in the middle. You would then put refined titanium above and below the energy orb and have mechanisms in the remaining space.