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Editing v0.34:Obsidian farming
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Another, possibly simpler, design is 3 z-levels high: | Another, possibly simpler, design is 3 z-levels high: | ||
* Uppermost level contains a water reservoir, the floor is channeled out and covered with a retracting bridge (shown in purple), to drop water '''when needed''', and, optionally, a raising bridge (in white) to control water flow; the combination of retracting and raising bridges will result in a measuring reservoir, which drops no more water than necessary. It may also include a door for maintenance purposes. | * Uppermost level contains a water reservoir, the floor is channeled out and covered with a retracting bridge (shown in purple), to drop water '''when needed''', and, optionally, a raising bridge (in white) to control water flow; the combination of retracting and raising bridges will result in a measuring reservoir, which drops no more water than necessary. It may also include a door for maintenance purposes. | ||
| − | * Middle level is an access room; floor may be channeled out or ramped out from below, but it should not be there. It should include an access door, and | + | * Middle level is an access room; floor may be channeled out or ramped out from below, but it should not be there. It should include an access door, and drains to remove excess water (shown in cyan); the spare water may be pumped back to the reservoir, dumped in the caverns or an aquifer, or left in a large room to evaporate. Outside the farm must be two levers; one controls the bridges in the water reservoir, one which controls the magma floodgate. |
* Lower level is the magma reservoir; the floor should be intact. The magma supply should be controlled by a [[magma-safe]] floodgate (shown in green). Again, this level may include a magma-safe door for maintenance access. | * Lower level is the magma reservoir; the floor should be intact. The magma supply should be controlled by a [[magma-safe]] floodgate (shown in green). Again, this level may include a magma-safe door for maintenance access. | ||
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# Retract bridge and drop the water onto the magma. | # Retract bridge and drop the water onto the magma. | ||
# Unretract the bridge. | # Unretract the bridge. | ||
| − | # | + | # Wait until any excess water has drained away. |
# Mine the obsidian using channels/ramps. | # Mine the obsidian using channels/ramps. | ||
# Haul the obsidian stones to a stockpile. | # Haul the obsidian stones to a stockpile. | ||