IвЂ™d argue itвЂ™s perfect for our pump stack because itвЂ™s so small and relatively simple to set up. The screw pump moves water to the wheels, which turn, power the pump ad infinitum. In LaymanвЂ™s terms itвЂ™s two levels deep, filled with water, two water wheels on each side with a pump in the middle. Essentially itвЂ™s a perpetual motion machine: once manually started it wonвЂ™t stop and will keep providing a huge amount of power for a fairly small amount of effort. I highly suggest using a dwarven reactor for your first try, and then building something more legit after.ДЄ dwarven reactor is a pМ¶oМ¶sМ¶sМ¶iМ¶bМ¶lМ¶eМ¶ М¶bМ¶uМ¶gМ¶ masterpiece of dwarven engineering. I used a dwarven reactor, which is a bit of an exploit but itвЂ™s the fastest way to see if your setup works.

If you press q and hover over one of your screw pumps, youвЂ™ll be able to see how much power your pump stack requires.

Now come the logistics of actually powering up your pump stack. If youвЂ™ve gotten to this point, congratulations! The most annoying part of the build is done. This isnвЂ™t super complicated, but youвЂ™ll essentially want the figure above reversed each level.

Solid block where the magma will rest before being moved up by another screw pump.

A hole to connect the screw pump with one below it.

YouвЂ™re going to want 2 gabbro doors per z-level. YouвЂ™ll also want to use that gabbro to make some gabbro doors. So, with that logic in mind, I suggest you find a good source of gabbro (usually pretty close to the magma) and start making some blocks.

Completely magma-safe pumps are completely immune to magma.Pumps that have at least one magma-safe material can move magma, but will break if submerged in magma.Pumps built of non magma-safe materials will break down on contact with magma.I havenвЂ™t observed them disassembling or breaking down while using them.I built the giant corkscrew and pipe section out of copper.My screw pumps seem to be magma safe just by using a magma-safe block in their construction.IвЂ™ll be honest: I have no idea what this is trying to say, so hereвЂ™s what I observed while testing this out: Despite the requirement for magma-safe materials, the exterior of the pump does not heat up, and dwarves do not mind operating a magma pump directly. Wooden parts (except for nether-caps) will burst into flames the instant the pump is activated, and magma-unsafe stone blocks melt after a short time. In order to safely pump magma, you must use magma-safe materials, though magma-unsafe metals have been observed to be safe unless the open tile is going to be submerged in magma. The Dwarf Fortress wiki is quite confusing when it comes to magma-safe screw pumps:

The second piece of the puzzle is magma-safe materials. You wonвЂ™t want to build a whole other pump stack once your magma pool is depleted. This should go without saying but make sure your source of magma is infinite! If your magma pool goes off the limits of your embark, then itвЂ™s an infinite supply. Please take your time on this, as it will make everything else a lot easier. YouвЂ™ll need to do some exploratory digging to find a spot youвЂ™ll be able to excavate straight down without interruptions. This is especially difficult with magma as lava seas are usually as far down as 30 z-levels, with multiple caves between them and the surface. This is important because screw pumps share power between them (as illustrated), which means you only need to power one for it to power the whole stack. If you want to avoid a lot of headaches, youвЂ™ll want your pump stack to be a single column of pumps all the way to the level you want to move the magma to.

Dwarf fortress pump