Tunnel Boring Machine
Heavy Excavation Equipment
<&tbm0>The Tunnel Boring Machine (TBM) excavates tunnels continuously underground. It consists of a cutterhead, a drive unit and a support system.<np>
To form the structure, assemble it as shown on the previous page and use the Engineer's Hammer on the redstone engineering block.

Once started, the TBM advances automatically. Each ring it consumes materials, places lining and damages the drill heads.<np>
Drill heads must be installed on the machine and will break when worn out. Replace them with fresh <link;immersiveengineering:drillhead_steel;§n§osteel drill heads§r> before they break.

Every sixteen rings the TBM additionally consumes one coil of steel wire for structural support.
The TBM requires energy input, and excavated material is ejected from its output port.
