Originally posted by pipo.p:

Please correct me if I am wrong in my guess! I've only dug below copper deposits so far. To dig upwards, is it possible to first dig downwards (or frontwards) in a cliff or large emerging mineral block, way below top level, and then "climbing up" by first carving out a central column, then making it sunder by detaching it from the sides by use of scaffolding and scales? Would you be limited to 8 meters upward in this case? Can the process be repeated upwards, with or wothout intermediary mineral floors?

if you dig on the front of a cliff, it lowers the top of it. There is no dig upwards unless you are coming out from under an indestructible or rock, in which case, digging lowers the surface or if that is already lowered too much, does nothing but make noise.

way down is not possible either, its 8 below the original surface.

there isnt some work around that lets you did deeper. Again your best depth is to raise to max then dig, which doubles the 'depth' to 16ish.

if you had repeated large rocks or whatnot in a stack you can certainly dig under each one and use each one as a roof to a small room and connect them all carefully to a ladder series or something. I don't think many rock piles like this exist.