Let's do the math! 2 dimensions (of the 6 adjacent blocks you use one for water, one for lava, two for pistons and two to push the stuff there), 15 blocks length (not 16 since you can't get 4 BDs on the innermost blocks), 4 BDs per block, 16 stacks per BD ...Blueblade11 wrote:That only works for 16 blocks though...
EDIT: Sorry, thinking 1D :P
That's 122880 blocks of cobble, right?
P.S.: I haven't build this (since it's overkill imo) so there might be flaws in my plan ...