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[sonerohi]

I had a pump catch on fire within 12 in game days.

[sweitx]

I just thought of an idea.
Falling magma as a gate.
If its continuous enough, we can a solid wall of magma to stop enemy from entering.

[InsanityPrelude]

I don't know if you can make floodgates from metal, but nickel blocks will work just fine for the pumps.

[forsaken1111]

I don't know if you can make floodgates from metal, but nickel blocks will work just fine for the pumps.

If you allow ore like magnetite or copper nuggets to be used in crafting you could make them into floodgates.

[Muz]

I think I made some magma pumps from obsidian. They lasted well enough. Or maybe it was just water pumps that worked near magma. I forgot.

[ChairmanPoo]

I'm curious as to why noone is suggesting making the pumps out of glass

[Hamster Man]

Glass pumps work perfectly fine for pumping magma, but connecting them to power requires a mechanism, eg bauxite. At least, I'm assuming they knew about that and are worried about the mechanism.

Btw, using a magma-fall as a gate would be sweet as hell, since I THINK invaders will try to path through it. Just throw a switch and watch em walk into their fiery doom (bonus points if they only catch fire and run around instead of insta-melting).

[DeathOfRats]

Glass pumps work perfectly fine for pumping magma, but connecting them to power requires a mechanism, eg bauxite.

Since when?

[Zona]

Glass pumps work perfectly fine for pumping magma, but connecting them to power requires a mechanism, eg bauxite. At least, I'm assuming they knew about that and are worried about the mechanism.

Btw, using a magma-fall as a gate would be sweet as hell, since I THINK invaders will try to path through it. Just throw a switch and watch em walk into their fiery doom (bonus points if they only catch fire and run around instead of insta-melting).

Can one not power the pumps from above? That whould remove the need for a magma safe mechanism, No?

[Kidiri]

we can call it fixing if anyone got to much time over then he could write the exact melt point of dwarf fortress stone and real life and compare.

You mean like in the Great Cthulhu's Molten Rocks mod? I don't think you'll need to regen, but I'm not sure about it.

[Skorpion]

Pumps can be powered just fine by careful chanelling. Make the walls go right up to the impassable back tile on either side, and run an axle to the passable tile so it doesen't go over the magma channel. The pump still has to be entirely magma-safe, but mechanisms do not.

However!

Buildings made from a magma-safe material deconstruct when magma flows over them if they have a non-magma-safe mechanism added to operate them. This makes them single use only.
But, as mentioned above, you can stop magma flow by applying water from above. Use a retracting bridge and a few Z-levels of water, and you've got a plug ready for use. Add a screw pump to the system, and you can even evacuate it for tripping the magma flow again.
Complex? Fuck yeah.
Dwarven? Hell yeah!
Technically cheating? Hell no!

[Grendus]

I don't know if you can make floodgates from metal, but nickel blocks will work just fine for the pumps.

You can make floodgates out of metal, yes, or you can make pumps entirely out of metal. The only place where Bauxite is 100% required is for mechanisms, unless you want to waste a perfectly good wafer of Adamantine.

And wooden pumps are an iffy subject, kind of like pitting invaders. Some players have them blow up every time they attempt it, some players can run wooden pumps for decades without the pumps burning. However, using wooden pipes to pump magma is a pretty bad idea regardless, forge them out of nickel, nickel silver, iron, or steel. Everything else can be made of wood for all the game cares (though I'd go with stone or magma-proof metal to be safe), you don't want that pipe burning up.

[ein]

we can call it fixing if anyone got to much time over then he could write the exact melt point of dwarf fortress stone and real life and compare.

You mean like in the Great Cthulhu's Molten Rocks mod? I don't think you'll need to regen, but I'm not sure about it.

I'm surprised this wasn't suggested earlier.
Seriously, this will solve all of your problems.