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[bdog]

Just an idea

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I think legend is not needed

[Pheo]

Wow. I think that is a winner bdog.

It's not anything like dropping a stone container of dwarves... But dropping a hammer to seal off the top is just as dwarfy.

[jryan]

I've been wanting to try this using a goblin tower.  I've dug those out several times and they never seem to fall apart when they fall.... I just never had enough magma to drop a whole tower into until now!

[jryan]

As we all know, dwarves are destined to find failure in success, and great success in failure.  It is the curse of Armok.

As such, I am sure that you will eventually succeed in getting the submarine built and dropped successfully only to have the dwarf inside start to twitch and scream for "shells and rough color!".

[bdog]

Wow. I think that is a winner bdog.

It's not anything like dropping a stone container of dwarves... But dropping a hammer to seal off the top is just as dwarfy.

Thanks!

Plus, with good management aboveground you could re-enable entrance when new migrant wave comes (or order them to drop more blocks to make underwater complex)

Now I'm thinking - It should be possible do make some kind of airlock to transport items (barrels, bins, cages ]:>) underwater.

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D - doors/floodgates
pP / Pp - screw pumps connected to some kind of powersource
_ - floors
▓ - obsidian walls
. - floor hatch
, - floor grate

The trick is - screw pumps *should* dry one tile fast enough to build floor hatch there (I hope so, I didn't try it but if one can stack pomps to dry 5x5 square on top of ocean I can't see why it shouldn't work underwater)

Imagine booze and meat dropped in barrels, blocks and stone in bins, livestock and dwarves in cages!

There will be problem to get good powersource underwater but oh well... its nothing that couldn't be done!

TO DO: think of a way to shoot something upward (IMO, the hardest part)

[MrFake]

Just an idea

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I think legend is not needed

Step 4 will look more like:

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That diagonal support on the upper two columns will continue to hold those walls, natural or constructed.  Collapsing walls will settle on them.

If you can get the dwarfs to mine out the supports on those columns, you might be able to get a seal, like so:

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=============M, for mine.  As close to simultaneously as possible, mind.

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[Keldor]

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Problem solved ^.^

The tricky part is making the shaft nice and smooth, since any "splatter" will prevent the sheath from falling all the way into place.

Depending on the exact way caveins work, you might have to raise the outer ring of supporting floor up a level, so that the inner ring of walls is completely unsupported if the first cavein of the hammer is fully resolved before the inner ring tests for connectivity.

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[Keldor]

The next questions:  Adding windows and painting the outside yellow...

[Fluff]

The next questions:  Adding windows and painting the outside yellow...

I've said it before, I'll say it again: In DF2010, Gypsum is magma proof.

[opsneakie]

Okay, so we construct the pod underwater, fill with desirables, then drop a giant piece of stone on it to seal it? Is that approximately what we're talking about here?

Since the post-merge version should be up soon, I think I'll wait for that to give this one a try, but it looks very promising.

[Keldor]

The next questions:  Adding windows and painting the outside yellow...

I've said it before, I'll say it again: In DF2010, Gypsum is magma proof.

Sure, but how do you get it down there?

I suppose if there isn't an aquifer, you could use the hammer method and build a large obsidian sub, construct a gypsum sub inside it, complete with windows, then drop the outer walls into trenches you dug beneath them...

[Fluff]

The next questions:  Adding windows and painting the outside yellow...

I've said it before, I'll say it again: In DF2010, Gypsum is magma proof.

Sure, but how do you get it down there?

I suppose if there isn't an aquifer, you could use the hammer method and build a large obsidian sub, construct a gypsum sub inside it, complete with windows, then drop the outer walls into trenches you dug beneath them...

Build a two layer gypsum sub, with gypsum and glass inside. Drop. Add windows  + Replace obsidian with gypsum in inner layer. Remove outer layer somehow (Possibly with the help of sacrificial submarines/dwarves). Fin.

[bdog]

Its getting more and more awesome ^^,

Sure, but how do you get it down there?

I suppose if there isn't an aquifer, you could use the hammer method and build a large obsidian sub[/obsidian underwater dock], construct a gypsum sub inside it, complete with windows, then drop the outer walls into trenches you dug beneath them...

Good idea.
But what would you do with remaining roof from obsydian dock?
And I really like the name "The Hammer Method"

Spoiler (click to show/hide)

Udib McMason: "We're ready to put our big hammer inside a hole beneath a big magma sea!"
Sig McFreud: "Man, you have a big problem, you know that, right?"

Build a two layer gypsum sub, with gypsum and glass inside. Drop. Add windows  + Replace obsidian with gypsum in inner layer. Remove outer layer somehow (Possibly with the help of sacrificial submarines/dwarves). Fin.

Gypsum as magma proof material is not enough as a drop material - theres no way to get BIG (and across multiple levels) natural wall made from it (w/o modding) and non-natural wall would deconstruct when falling.

[Dante]

Plus, with good management aboveground you could re-enable entrance when new migrant wave comes (or order them to drop more blocks to make underwater complex)

I'm not sure I understand your airlock, but the original idea seems to be sound.

A simpler way to regenerate the entrance, and therefore to travel up/down whenever you wanted, would be to make an obsidian-block-generator using a 3*3 bridge, and put the lever to it in your underwater complex.

Then when you want to open up, pull the lever once for each z-level, and then carve a series of up/down stairs up to the surface. Your original design should then work fine for sealing it off again, and you could cause that cavein either with the obsidian generator, or just with mining in you underwater complex (though you might need to sacrifice a miner).

[Dante]

That diagonal support on the upper two columns will continue to hold those walls, natural or constructed.  Collapsing walls will settle on them.

Actually it should be fine as it is. We've demonstrated that collapsing walls will fall as far as they possibly can, hence why ceilings collapse... which is the problem in the first place. Therefore they will go all the way down.