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[Shadowlord]

Concise summary: Without the ability to build steel mechanisms, steel floodgates malfunction after 30-60 seconds of being submerged in magma.

I built a steel floodgate and attached an obsidian mechanism to it to make it controllable with a lever. When I opened it, magma poured in and the floodgate did not melt, but after a while the mechanism disappeared (presumably it melted), and the floodgate took the appearance of a closed floodgate, but the magma continued to pour through it. The lever no longer affected it (as expected, since the mechanism was gone)

I had intended to put a steel mechanism on it, but couldn't find any way to make one in a forge.

[Toady One]

I don't like that the magma continued to pour through it when it was closed...  Could it have been the floodgate item if the building collapsed?  Or was it still a building?

[Shadowlord]

Hmm, you're right, it is just the floodgate item without a floodgate building now. I wonder why it collapsed?

[Toady One]

I think if a building loses any item it'll collapse, even if it's a mechanism tacked on there.  I'll probably handle it with metal mechanisms, and maybe also allow bulidings that lose their mechanisms to stay intact.

[Zaratustra]

Did you try bauxite mechanisms? Bauxite is the only stone defined as having a high melting temperature in the raws.

[Shadowlord]

I didn't have any bauxite, but I'll keep that in mind in case I find some sometime in the future.

[theubie]

FWIW:  Bauxite does indeed resist magma's ravages.  Bauxite flood gates and mechanisms continue to work in magma, and bauxite stone will not melt if left/dropped in it.  

The trick is finding it.  I tried 40+ map squares with sedimentary layers and not a single piece.  Finally broke down and edited the raw to put it in every layer just so I could test.

[Alfador]

quote:Originally posted by theubie:
<STRONG>FWIW:  Bauxite does indeed resist magma's ravages.  Bauxite flood gates and mechanisms continue to work in magma, and bauxite stone will not melt if left/dropped in it.  

The trick is finding it.  I tried 40+ map squares with sedimentary layers and not a single piece.  Finally broke down and edited the raw to put it in every layer just so I could test.</STRONG>

It'd get ridiculously expensive, but on maps with it, raw adamantine used as a stone seems like it ought to work too.

On the plus side, if for that very reason you don't have a magma smelting operation set up, raw adamantine is worth 250x material value (pure adamantine is 300x) and mechanisms are worth 30 each, so you'd be able to buy caravans with a single raw adamantine gear.

[theubie]

Now if we could just get Lava to refill...I'd use raw addy to create complex lava traps!    

[Devastator]

Maybe modify the infinite water generator?

[AlanL]

I wonder if people have noticed that Iron has a higher melting point than Steel, both in game and in real life.

[valcon]

obsidian mechanisms seem to work for me ...

[Shadowlord]

I tried obsidian mechanisms in a steel floodgate in 33a, and after a minute or two, the mechanism melted and the floodgate was magically deconstructed.

I also tested an obsidian floodgate.

The thing is that they will work fine so long as the floodgate is closed. The temperature of a tile with magma in it is much much higher than the temperature of a tile which is only adjacent to magma.

[ November 22, 2007: Message edited by: Shadowlord ]

[Core Xii]

quote:Originally posted by AlanL:
<STRONG>I wonder if people have noticed that Iron has a higher melting point than Steel, both in game and in real life.</STRONG>

Does that imply iron doesn't melt in magma?

[atomicoctobot]

quote:Originally posted by Core Xii:
<STRONG>

Does that imply iron doesn't melt in magma?</STRONG>

The Wiki identifies it as "magma proof".