I usually play with 4 mining turtles around an ender chest, another enderchest connected to my AE system.
Beggining with a small area is good, as you'll have to learn how much energy the turtle needs to excavate a certain size of terrain.
The progress that MinecraftGeek70 is planning to do is exactly what I'm usually doing. one turtle, 8*8 area, more and more turtles... until I unlock something.... else. won't say more for now, but fear the "TEM" and don't stand on its path
Hi from France!
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