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Should this thread stay in Dwarf Mode discussion or be moved to community fortresses?

Stay in Dwarf Mode discussion
- 4 (50%)
move to community fortresses
- 4 (50%)
move to some other thread
- 0 (0%)

Total Members Voted: 8

Voting closed: December 14, 2014, 05:55:07 pm


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Author Topic: Drain a Volcano. Now attempting!  (Read 7069 times)

origamiscienceguy

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Re: Drain a Volcano. Is it possible?
« Reply #15 on: December 10, 2014, 05:27:53 pm »

The few preliminary tests I have done showed me that the magma is only pressurized if it goes through a pump. Also, It appears that the magma actually fills from the bottom-most levels of the magma, just more magma appears on top of the old ones, not completely sure though. I think the best way to do it would be to have several pumps each with their own 1-tile wide hallway to a fortified map edge. the hallways would have no escape except for the fortifications, so the pump pressurization should whisk all the magma off the map.
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"'...It represents the world. They [the dwarves] plan to destroy it.' 'WITH SOAP?!'" -legend of zoro (with some strange interperetation)

Max™

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Re: Drain a Volcano. Is it possible?
« Reply #16 on: December 11, 2014, 02:36:40 am »

Apparently if you set the cavern openness minimum to 90 or so and only have 1 cavern and don't include a hell layer, it is pretty common to get volcano tubes which are already drained AND open to the caverns.

Had several forts like this now.
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origamiscienceguy

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Re: Drain a Volcano. Is it possible?
« Reply #17 on: December 11, 2014, 08:59:35 am »

But I want the lava to fill back up around my fort when it is done.
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pisskop

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Re: Drain a Volcano. Is it possible?
« Reply #18 on: December 11, 2014, 09:00:42 am »

Apparently if you set the cavern openness minimum to 90 or so and only have 1 cavern and don't include a hell layer, it is pretty common to get volcano tubes which are already drained AND open to the caverns.

Had several forts like this now.
How much Fun is it, with climbing and flying?

--I would love it if Toady would allow fissures in the Earth to expose various subterranean things.
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MDFification

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Re: Drain a Volcano. Is it possible?
« Reply #19 on: December 11, 2014, 09:07:56 am »

After testing this myself, the layer where the lava rain spawns moves down with the top layer of the magma in the volcano. So if you move the magma a good 4 z-levels beneath the lowest level you're going to be building on, your dwarves should be safe.
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Naryar

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Re: Drain a Volcano. Is it possible?
« Reply #20 on: December 11, 2014, 09:10:13 am »

Apparently if you set the cavern openness minimum to 90 or so and only have 1 cavern and don't include a hell layer, it is pretty common to get volcano tubes which are already drained AND open to the caverns.

Had several forts like this now.
How much Fun is it, with climbing and flying?

--I would love it if Toady would allow fissures in the Earth to expose various subterranean things.

Yeah. Today's underworld is nice, but I miss the variety of 40d things.

Most notably cave rivers. Chasms would be nice as well.

Max™

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Re: Drain a Volcano. Is it possible?
« Reply #21 on: December 11, 2014, 09:17:05 am »

Apparently if you set the cavern openness minimum to 90 or so and only have 1 cavern and don't include a hell layer, it is pretty common to get volcano tubes which are already drained AND open to the caverns.

Had several forts like this now.
How much Fun is it, with climbing and flying?

--I would love it if Toady would allow fissures in the Earth to expose various subterranean things.
It was a surprise to find a bunch of dorfs curbstomping a cave ogre, as there is no "you've discovered an underground cavern" message to let me know they can path to the fort, I hadn't cracked the caverns myself, and did not realize the buggers would climb 60 something z straight up.

I smoothed a layer around the tube because I was still waaaaay too early to be dealing with a steady flow of trolls and ogres and crundles and rutherers and non-flying fb's without being the least bit prepared for them.

I made an artificial river source to get a full waterfall lined volcano in another map which had around 100 z elevation change from the southwest to the northeast corners of the tube, that kept the climbers busy, and since I had all civvies with crossbows+fortifications lining the meeting area/bedrooms for mist happiness anything that tried to fly up ended up pelted by a hail of bolts from all sides, which was hilarious.

Though little made it up due to a crazy Bat-man with a wooden spear and over 100 kills last time I checked.
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Dwarfeon

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Re: Drain a Volcano. Is it possible?
« Reply #22 on: December 11, 2014, 02:40:46 pm »

Requesting some !!science!! to drain and re-pump the volcano into intermitent magma drain over elves. Or replacing their lousy water rivers with magma. Wichever is more dwarfy to "!!scientists!!
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origamiscienceguy

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Re: Drain a Volcano. Is it possible?
« Reply #23 on: December 11, 2014, 02:57:17 pm »

I WILL do this over winter break. Or die trying. 8)

« Last Edit: December 11, 2014, 04:18:46 pm by origamiscienceguy »
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TheHossofMoss

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Re: Drain a Volcano. Is it possible?
« Reply #24 on: December 11, 2014, 03:47:59 pm »

man, good luck with your FPS doing that tho.

+1
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origamiscienceguy

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Re: Drain a Volcano. Is it possible?
« Reply #25 on: December 11, 2014, 04:21:57 pm »

My first attempt had no sand, I will have to try again.
« Last Edit: December 11, 2014, 04:49:20 pm by origamiscienceguy »
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Hamiltonz

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Re: Drain a Volcano. Now attempting! (embarks needed)
« Reply #26 on: December 11, 2014, 06:17:20 pm »

I tried this using DWR and a lot of elevated water works.  I was attempting to build underground without digging...anywhere.

At some point the flow of magma from the edges of the pool down there equalizes with the rate of destruction from falling water.  I was able to slightly increase this rate by placing a 'spreader' bridge under the outflow.  Effective turning one 6-7 depth chunk of falling water into 5-7 1-2 depth chunks.

I gave up when falling water grew a floor at the point where the shaft met the cavern, ruining my 'no dig' challenge.

Note: Each chunk of obsidian that is created by pouring water into magma counts as a created item.  There is a limit to how many items that can be created.  Use the pump out and drain to the screen edge method to avoid hitting this limit.  Glass pump stack are magma safe.
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Vattic

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Re: Drain a Volcano. Is it possible?
« Reply #27 on: December 11, 2014, 06:51:15 pm »

--I would love it if Toady would allow fissures in the Earth to expose various subterranean things.

Yeah. Today's underworld is nice, but I miss the variety of 40d things.

Most notably cave rivers. Chasms would be nice as well.

At least Toady also misses having the underground rivers and plans to add them back when he figures out how.
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Col_Jessep

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Re: Drain a Volcano. Is it possible?
« Reply #28 on: December 11, 2014, 06:54:58 pm »

My first attempt had no sand, I will have to try again.
You can use DFhack to change a layer to sand if you really like the embark. Just pick a layer with the cursor and type "changelayer SAND_WHITE" and your are done. Make a backup save first! ;D
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Max™

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Re: Drain a Volcano. Now attempting! (embarks needed)
« Reply #29 on: December 11, 2014, 06:58:27 pm »

...I feel like such an idiot, last time I tried to get sand I did it by hunting around for certain types of layer stones and adding tiletypes m soil s wall blocks until I got an area that spit out sand for me.
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