The Buildcraft Floodgate can kind of do what you're looking for. It will place any fluids pumped into it below it, or next to it, or next to any other source blocks it placed, or wherever the fluid flows and drops down a level. However, it doesn't work with redstone pulses. The best way to do that might be to feed the floodgate with fluid (lava, I assume, if you're trying to make obsidian) from a tank via a wooden waterproof pipe with an autarchic gate set to "Redstone Signal" -> "Pulse Once". When you give the gate a redstone signal, it will produce 1 MJ (I mean, 10 RF) for free and direct it into the pipe, which will then extract precisely one bucket of lava (pretty sure that's how it works, although not tested recently) and transfer it to the floodgate.Would any perhaps have any idea on make one? One that doesn't involve the igneous extruder. I have an idea, but I need a mod (or block) that is able to dispense liquid (from a pipe feeding said block) on a redstone pulse.
Bear in mind, Autarchic is not a specific gate now, but rather a property that you apply to any other gate using an integration table.The Buildcraft Floodgate can kind of do what you're looking for. It will place any fluids pumped into it below it, or next to it, or next to any other source blocks it placed, or wherever the fluid flows and drops down a level. However, it doesn't work with redstone pulses. The best way to do that might be to feed the floodgate with fluid (lava, I assume, if you're trying to make obsidian) from a tank via a wooden waterproof pipe with an autarchic gate set to "Redstone Signal" -> "Pulse Once". When you give the gate a redstone signal, it will produce 1 MJ (I mean, 10 RF) for free and direct it into the pipe, which will then extract precisely one bucket of lava (pretty sure that's how it works, although not tested recently) and transfer it to the floodgate.
How does the one without lava consumption work?Depending on your version you could make one of the redstone obsidian generators which doesn't use any lava or you could pump lava into a buildcraft floodgate to place the lava blocks.