
Rail Carving Vehicle
Was trying to make a monorail that dug out it own rail path but when the rail ended I realized I didn't even need to make rails, it actually dug out a line deep and wide enough that the vehicle keeps itself aligned and continues forward.
EDIT: it is slow as all hell but it needs to be so the drill has time to actually drill. Its max speed isn't even 1 m/s
EDIT 2: apparently it can blow itself up even with welder repairing it constantly.