Factorio Forums

1. Dropped electric drill to deliver coal.
2. Dropped stone furnace to receive coal and copper.
3. Dropped electric drill to deliver copper.
4. Both drills animate, but furnace only receives coal, no copper.
See attached screen shot.

If you select the miner over the copper ore, does it have copper ore in its output? It might have mined some coal (Since the mining area is both coal and copper for that second miner) and since coal is full in the furnace, it can't mine anything else.

Try putting the miner south of the furnace, pointing north.

You are exactly right, thanks. Please close this bug.