Blockoman, I have a cave with about 6 directions.
Also, how do I make T-junctions for minecarts?
E T E
T T T
E = empty
T = track
for on the ground, then you can use a true/false input to switch the curve, or if you have a stright track, with a straight track heading into it, without any curves, the cart will travel south or west when hitting the junction
also, for lava lighting, i did this, and mirrored it, all with one spring of lava with channels :D