mastercrafted pure iron
quad blue belt mastercrafted pure iron
iron smelter
steel smelter
power
These smelters consume and pump out so much materials that it'll be ridiculous to use beacons. I know there are more advanced belts, Krastorio2 got them and so does YI. I just haven't gotten around to them yet. I haven't even make the canning machine and there are so many plants to grow and aliens to breed. I'm still amaze how this mod isn't more popular. Like damn, look at all the things.