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« on: September 06, 2011, 05:04:24 am »
Alright, so, yesterday I was buggin' about with some pumps to get a corpse out of a river (the project ended up needlessly huge and it probably won't be done before the end-of-year siege, which is probably when trolls will come to play merry havoc with all the pumps and axels and such), and I must be a Spark, because I went to the Madness Place for a bit (referencing webcomics, yay). When I emerged from my dark torpor, filled with visions of mechanics working tirelessly and my blacksmiths weeping at the prospect of finally having to do more work than fill the occasional dumb mandate, I found that I'd painted some designs for an obsidian farm on the walls in my own blood (thanks to my cat, Mister Mittens, for giving me the scratch I needed to do so). That was vaguely disturbing, so I cleaned it up, but not before copying the designs down, of course.
Here's what I got. W is walls, M is magma, O is obsidian, and H is water (for H2O. Ain't we scientific?)
The initial setup (pumps not pictured, and also, the magma cube would be 7X7...I have something with sevens, leave off).
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WWWWWWWW
Add some water...
HHHHHHHH
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WWWWWWWW
Resulting in...
WOOOOOOOW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WWWWWWWW
I figured, then, that the cavein of the resulting obsidian layer would make this:
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WMMMMMMMW
WOOOOOOOOW
WWWWWWWW
But then I realized: "Oh, millenium shrimp. The walls of the cistern would keep the obsidian layer from falling. My plans are undone!)
But lo, I remembered something from the DF wiki on caveins. Even if a bridge is connected to an otherwise freefloating (i.e not connected to anything else) block of stone tiles, this would not keep the freefloating chunk from falling. Which is to say the bridge doesn't act as a support.
Here we see the updated design, where B is a raised 1x1 bridge (for the 3D 7X7 design, of course, raised 1X1 bridges surround the magma on every layer on all sides).
WBMMMMMMMBW
WBMMMMMMMBW
WBMMMMMMMBW
WBMMMMMMMBW
WBMMMMMMMBW
WBMMMMMMMBW
WBMMMMMMMBW
WWWWWWWWW
That's a lotta bridges. The bridges are raised, of course, because otherwise magma would flow onto the bridges...which might cause problems. I'm honestly not too sure, about whether or not that would cause problems or about anything else in the world, really. I do know, however, that those bridges are raised, so even if magma being on the un-raised bridge would cause problems, that problem is now eliminated. Preemptively. Yeah, that's just how I roll, baby.
Assuming that the bridges would indeed allow the newly formed obsidian layers to cave in and plunge to the bottom of the reservoir, I'd end up with something looking like this:
WBOOOOOOOBW
WBOOOOOOOBW
WBOOOOOOOBW
WBOOOOOOOBW
WBOOOOOOOBW
WBOOOOOOOBW
WBOOOOOOOBW
WWWWWWWWW
That's a 7x7x7 cube of fresh, shiny, ridiculously sharp (careful now!) obsidian. That's 49X7=343 pieces of obsidian. I may have to add an extra layer. Y'know...to even it out. 350 pieces. I like that. Divisible by 7!
Also the schematic kinda looks like somebody screaming about breasts.
Now my question is, Bay12... Would this work?
(And, if yes, how awesome is it?)