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« on: July 22, 2010, 11:27:05 pm »
I've done something similiar to this before, back when I was playing 40d. Built an ice fort in a 2 biome tundra, 1 with aquifer for water the other half was dry. I dug out a 60x60x10 cavern in the dry half with jus a soil floor over the whole thing. Pumped in water from the aquifer till it was full, and channeled the soil roof out. Insta ice fort, and then use bucket brigades to pretty up the entrance and construct a few ice pillboxes.
I did want to actually make a natural ice-palace above the ground at one point, but never got around to it. Didn't want to use init file fiddling to keep water liquid while filling a mold, and most definately didn't want to bucket brigade an entire above ground palace lol. So I did concoct a plan for it, but like I said it never put in motion so I dunno if it'd work. Maybe you can give it some thought, and maybe even solve the problem I encountered in my planning phase that I never quite worked out hehe.
So without further ado, my crazy scrapped plan from back then for an above ground natural ice structure.
Build a mold as normal with an extra lvl below what you want frozen, with whatever material you have handy, but take time to place retracting bridges on every floor of the mold. After you get that all done, pump magma into the 2nd floor from the top, essentially right under the top floor you want frozen. Don't pump in too much though, you want the magma to be moving about so that it keeps water liquid above it. Now you pump in your water onto the top floor, and because the magma is moving about below it, it won't flash freeze yet. Once you got the top floor full, retract the bridges under the magma in the lower room. The magma falls 1z lvl to the next floor down, and the water on the top freezes and the mold walls support it. Now re-extend your bridges and pump water into the room that was jus vacated by the magma, followed by dropping the magma again and flash freezing the next floor. You work your way from top to the bottom like that. Finally you get to the bottom level, you did build that extra basement floor right? Dump your magma there flash freeze your last floor, and the ice should now be touching the ground and supported by that. You can now deconstruct the mold.
The big problem I ran into though, was the pump stack to get the water up there. Was the water gonna flash freeze in my pump stack or not. I had started to try and work out an extra complicated stack with magma in it to keep the water liquid as I pumped it up to the top of the mold, but never got past that part cause I sorta moved on to 2010 at that juncture hehe.
Just in case you missed it the first time though, this is completely untested and I did hit a snag in the planning phase with the pump stack for the whole thing. I may revisit this crazy plan at some point in the future, I dunno yet. Also sorry for the wall'o'text, if you can figure out what in the world I was thinking with this project back then, let me know how it goes XP
Though in all honesty it'd probably be easier if less dwarfy to use the init file "temp OFF" to keep the water liquid till you're ready to freeze it in your mold. Cheers and have fun.